An ISO/IEC 17025:2005 Standard - NABL Accreditation Certified Laboratory.

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NDT INSTITUTE - NDT TRAINING AND CERTIFICATION

1. Ultrasonic Testing

2. Radiographic Testing

3. Magnetic Particle

4. Penetrant Testing

5. Visual Testing

6. Radiographic Film Interpretation

7. Ultrasonic Thickness Measurement

8. Time of Flight Diffraction (TOFD)

9. Phased Array Ultrasonic Testing (PAUT)

10.TKY JOINTS

11.Eddy Current Testing (ET)

NDT TRAINING -Conventional NDT Course in Chennai

Basic Radiation Safety (BRS)

CSWIP Visual Inspector (Offshore)

Magnetic Particle Testing (MT)

Penetrant Testing (PT)

Radiation Protection Supervisor (RPS)

Radiographic Interpretation - Principles (Part A)

Radiographic Interpretation (RI) - Metal Welds (Part B)

Radiographic Interpretation (RI) - Metal Castings (Part C)

Radiographic Testing (RT) - Welds

Ultrasonic Corrosion and Erosion Monitoring

Ultrasonic Testing (UT) - Thickness Measurement

Ultrasonic Testing (UT) - Welds

Visual Testing (VT)

CSWIP 3.1 COURSE - WELDING TRAINING AND CERTIFICATION

CSWIP 3.0 Visual Welding Inspector - Level 1

CSWIP 3.0 Visual Welding Inspector - Level 1 (Mandarin)

CSWIP 3.0 Plus - Visual Welding Inspector with Practical Module - Level 1

CSWIP 3.1 Welding Inspector - Level 2

CSWIP 3.1 Welding Inspector - Level 2 (Mandarin)

CSWIP 3.2 Senior Welding Inspector - Level 3

AWS - WELDING TRAINING AND CERTIFICATION

AWS CWI to CSWIP Welding Inspector - Level 2

AWS CWI to CSWIP Welding Inspector - Level 2 (Mandarin)

Welding Procedures and Welder Qualification

ASME IX Welding Standards

European Welding Standards

Welder Training and Qualification

Overview

API COURSES IN CHENNAI- Plant Inspection/Asset Integrity Management

API Examination Preparation Courses API 510 Pressure Vessel Inspector Examination Preparation Course

API 653 Aboveground Storage Tank Inspector Examination Preparation Course

API 570 Piping Inspector Examination Preparation Course

CSWIP 3.1 Training in Chennai - Plant Inspector - Levels 2/3

Module 2 Damage Mechanism Assessment for RBI and FFS, based on API RP 571

Module 3 Risk Based Inspection (RBI) based on API and ASME

Module 4 Fitness-for-Service (FFS) Assessment, based on API 579-1/ASME FFS-1 2007

Module 5 Weld Repair of Pressure Equipment and Piping

Module 6 Pressure Vessel Inspection, based on API RP 510

Module 7 Piping Inspection, based on API RP 570

Module 8 Aboveground Tank Inspection, based on API RP 653

Introducing BS 7910:2013

Plant Inspection Overview

Structural Integrity Assessmen

BGAS-CSWIP COURSE IN INDIA

BGAS-CSWIP Agricultural & Environmental Inspector

BGAS-CSWIP Blast Cleaning/Preparation Operative Level 5A

BGAS-CSWIP Painting Inspector Grade 2

BGAS-CSWIP Painting Inspector Grade 1

BGAS-CSWIP Painting Supervisor Level 4

BGAS-CSWIP Pipeline Welding Inspector

BGAS-CSWIP Protective Painter/Sprayer Operative Level 5B

BGAS-CSWIP Site Coatings Inspector

ASNT/ACCP Level III PREPARATORY COURSE IN CHENNAI

Basic

Magnetic Particle

Penetrant Testing

Radiographic Testing

Ultrasonic Testing

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NDT TRAINING CENTER IN CHENNAI - PENETRANT TESTING

NDT COURSE - Introduction

PT can apply to detect surface discontinuities which are open to surface and also not extremely rough or porous.

This method applied to Metals, Glass, Ceramic, Rubber, and Plastic.

PT can detect only surface discontinuities i.e. Cracks, Porosity, Laps, and Pin holes in weld.

NDT TRAINING CENTER IN CHENNAI - Procedure

ASME Sec V Article 6

NDT - Standards

ASME Sec V Article 24 - SE165

NDT TRAINING CENTER IN CHENNAI - Reference Standards

NDT COURSE In CHENNA - Principle

Capillary action

NDT TRAINING CENTER IN CHENNAI Course in chennai- Types of action

After applying the Penetrant, it will enter into the opening or discontinuity of the job. This is called as capillary action.

The developer is having the blotting effect. So it brings out the Penetrant from the discontinuities. It is called as Blotting effect.

NDT TRAINING CENTER IN CHENNAI - PT Equipments

NDT TRAINING CENTER IN CHENNAI Academy in chennai - PT methods

NDT TRAINING CENTER IN CHENNAI School in Chennai- PT Process

NDT in Chennai - Surface Preparation / Pre Cleaning

Surface of the job should be free from Oil, Grease, Scale, welding flux, Spatter, Rust & Dust for getting the accurate results. This is called as surface Preparation or Pre cleaning.

Methods of Surface preparation

NDT Course in Tamil Nadu - Application of Penetrant

After the area has been cleaned, dried and the temp of surface & Penetrant are within the range 5° to 52°C , the Penetrant shall be applied by Spraying, Brushing, Dipping, Painting & Pouring on the cleaned surface.

NDT TRAINING CENTER IN CHENNAI -Dwell time

After applying the Penetrant minimum 5 minutes should be given to allow the Penetrant to go into the openings of the surface of the Job. (5 to 30 min)

NDT TRAINING CENTER IN CHENNAI - Remove of Excess Penetrant

After the specified dwell time has been elapsed. Any penetrant remaining on the surface shall be removed with a dry or slightly moistened cloth of solvent cleaner. Unidirectional only.

NDT Course - Application of the developer

Apply developer directly to the area being inspected, by spraying from the aerosol container.

Areas being inspected shall be sprayed in such a manner so as to assure complete coverage with a thin, even film of developer.

Dipping or flooding parts with developer is prohibited.

NDt Course in tamil Nadu - Developing Time:

NDt in India - After applying the developer, time taken for blotting effect is known as Developing Time. (10 to 30 min)

NDT Course in India - Inspection

NT in Chennai After Appling the developer immediately visual inspection should be done.

Final interpretation is neither < 10 min nor > 60 min.

Visible Penetrant indications can be inspected in natural or artificial white light.

A minimum intensity at the inspection surface of 100 foot candles (1000 Lux) is required. For UV - 1000 uW/cm2

a. Evaluation of indications:

      a) Linear indications are those indications in which the length is more than three times the width.

      b) Rounded indication or indications which are circular or elliptical with lengths less than three times the width.

      c) Any questionable or doubtful indications shall be re-tested to verify whether or not actual defects are present.

Non Relevant indications

a) Localized surface imperfections may occur, such as machine marks, surface conditions, or incomplete bond between base metal and cladding, may produce similar indications which are not relevant.

b. Acceptance Criteria:

Acceptance criteria for specific Codes are listed as below.

These acceptance standards shall apply unless other more restrictive standards are specified if required by client. ANSI / ASME B31.1 &ANSI / ASME B31.3 Indication > 1/16"(1.5mm) shall be considered as relevant
  • Linear Indication: Any crack or linear indication > 1/16"(1.5mm)
  • Rounded Indications : Indications with dimensions >3/16"(5.0mm)
  • Four or more rounded indication in a line separated by 1/16"(1.5mm) or less edge3 to edge.
ASME SEC VIII D1 Indications > 1/16" (1.5 mm) shall be considered as relevant.The following indications shall be rejectable:
  • Relevant linear indication >1/16" (1.5mm)
  • Relevant rounded indications > 3/16" (5 mm)
  • Four or more rounded indications in a line separated by 1/16" or less (edge to edge).
AWS D1.1 Acceptance / Rejection criteria is dependent on service condition. Refer to the relevant project engineer or the Inspection Department. (Table 6.1 for visual inspection acceptance criteria can be applied)
ASME Sec IX Indications > 1/16"(1.5mm) shall be considered as relevant the following indications shall be rejectable:
  • Relevant linear indication >1/16" (1.5 mm)
  • Relevant rounded indications > 3/16" (5 mm)
  • Four or more rounded indications in a line separated by 1/16"(1.5mm) or less (edge to edge).
ASME Sec I Indications > 1/16"(1.5mm) shall be considered as relevant The following indications shall be rejectable:
  • Relevant linear indication >1/16"(1.5mm)
  • Relevant rounded indications > 3/16"(5.0mm)
  • Four or more rounded indications in a line separated by 1/16"(1.5mm) or less (edge to edge).

NDT TRAINING CENTER IN CHENNAI - Post cleaning

After completion of the test, in cases where residual penetrant or developer could interfere with subsequent processing or with service requirements, a suitable technique, such as a water rinse or solvent soak for cleaning may be employed.

Properties of Penetrant:

NDT in Coimbatore - Advantages

NDT COURSE In TAMIL NADU - Disadvantages


NDT COURSE IN CHENNAI - Magnetic Particle Testing (MPT)

Introduction

MPT is a Non Destructive Testing (NDT) process for detecting surface and subsurface discontinuities in ferroelectric materials such as iron, nickel, cobalt, and some of their alloys.

* Surface & Sub Surface discontinuities can be find through this MPI

AC current = Only Surface
DC current = Up to 6mm from the surface

Procedure - ASME Sec V Article 7

Standards - ASME Sec V Article 25 – SE- 709 Reference:

NDT SCHOOL IN CHENNAI - BASIC PRINCIPLE:


Magnetic Flux Leakage

Magnetism Properties :

NDT TRAINING CENTER IN CHENNAI - TYPES OF MAGNETIC MATERIALS:(According to the Magnetism)

NDT COURSE - Properties of Ferromagnetic Materials:

NDT TRAINING CENTER IN CHENNAI - Types of medium / Method

Types of Wet Method

Procedure for Settling method

SETTLING TEST

FM - 0.1 to 0.4 ml VM - 1.2to 2.4 ml

Temperature Limit:

Basic Procedure

Basic steps involved

Pre-cleaning

Contaminants such as oil, grease, or scale may not only prevent particles from being attracted to leakage fields, they may also interfere with interpretation of indications.

Introduction of the Magnetic Field

The required magnetic field can be introduced into a component in a number of different ways.

Two general types of magnetic fields (longitudinal and circular) may be established within the specimen.

According to Methods of Magnetism

Circular Magnetism Method

Longitudinal Magnetism Method

Head Shot Method

NDT TRAINING CENTER IN CHENNAI - Central Conductor Method:

NDT TRAINING CENTER IN CHENNAI - PROD METHOD:

Two electrodes usually made of copper or aluminum that is used to introduce current in to a test part. This current in turn creates a circular magnetic field where each prod touches the part. (Similar in principal to a welding electrode and ground clamp).

Longitudinal Magnetism Method

YOKE METHOD

Yoke Calibrations
NDT CENTRE IN BANGALORE - Coil method

A longitudinal magnetic field is usually established by placing the part near the inside or a coil’s annulus. This produces magnetic lines of force that are parallel to the long axis of the test part. The job may be cylindrical or square rod. If the job is more than 18 inch length test can be conducted by part by part.

Application of magnetic media

NDT TRAINING CENTER IN CHENNAI - MPI can be performed using either dry particles, or particles suspended in a liquid. With the dry method, the particles are lightly dusted on to the surface. With the wet method, the part is flooded with a solution carrying the particles.

NDT TRAINING CENTER IN CHENNAI In COIMBATORE - Interpretation of magnetic particle indications

After applying the magnetic media, indications that form must interpreted. This process requires that the inspector distinguish between relevant and non-relevant indications.

Demagnetization

NDT IN chennai - Advantages of Magnetic Particle Inspection:

NDT institution in India - Limitations of Magnetic Particle Inspection:

NDT TRAINING CENTER IN CHENNAI course in chennai - Limitations of Magnetic Particle Inspection:

NDT TRAINING CENTER IN CHENNAI - ULTRASONIC TESTING (UT)

The sound range above 20 KHZ (or) 20,000HZ is called as an ULTRASONIC SOUND (or) ULTRASOUND.

SOUND CLASSIFICATION:

Subsonic < 16HZ

Sonic - 16HZ - 20KHZ

Ultrasonic > 20,000 HZ

NDT PROCEDURE:

ASME Sec V Article: 4 (Weld) &
Article: 5 (Raw Materials).

NDT TRAINING CENTER IN CHENNAI - ULTRASONIC TRANSDUCERS:

It converts Electrical Energy into ultrasonic energy by utilizing a phenomenon known as the PIEZOELECTRIC EFFECT.

NDT CRYSTAL MATERIAL:

NDT CABLE:

NDT TRAINING CENTER IN CHENNAI in INDIA - FUNDAMENTALS OF WAVE:

a) WAVE LENGTH: ( λ)
NDT Ultrasonic Testing The distance covered by one complete cycle.
λ = ν / f - v- Velocity f - Frequency

Shorter λ - Less penetration & Smaller flaws can be detected.

Larger λ - More penetration & larger flaws can be detected.

b)NDt FREQUENCY
No of cycles per sec
Unit: HZ or CPS.

c) NDt AMPLITUDE:
NDt Max displacement of the molecules from their equilibrium position.
d)NDT VELOCITY:
It is the rate at which the sound energy is transmitted in a medium

NDT PROPAGATION OF SOUND:

DEAD ZONE:

Ndt Seen on the CRT as an extension of the initial pulse the DZ is the ringing time of the crystal & it is minimized by the damping medium behind the crystal.

NDT NEAR ZONE:

NDT In this region, the sound intensity is variable owing to wave interference; therefore flaws lying in this zone may appear smaller or larger than their actual size.

N=D^2/4λ
D- Diameter of crystal
λ NDT Wavelength of sound
NDT FAR ZONE:

Beyond the near zone the far zone exists, in this region the beam divergence occurs, resulting in delay in the sound intensity as the distance from the crystal increased.

NDT TRAINING CENTER IN CHENNAI - MODES OF PROPAGATION /TYPES OF WAVES:

NDT TRAINING CENTER IN CHENNAI - LONGITUDINAL WAVES:

This type of wave is produced by normal or T/R Probe.
The direction of propagation of the produced sound is parallel to the particle of motion.
It propagates in solid, liquid & gases. Depth of penetration will be high.

NDT - SHEAR WAVES:

This type of wave is produced by Angle Probe only.
The direction of propagation is perpendicular to particle of motion.
Propagates only in solid.
Depth of penetration is 1/2 (half) of longitudinal waves.

NDT TRAINING CENTER IN CHENNAI - TYPES OF PROBES:

a)NDT NORMAL PROBE:

b)NDT T/R PROBE:

c)NDT ANGLE PROBE:

NDT FACTORS AFFECTING THE PROPAGATION OF ULTRASOUND:

NDT General :

NDT TRAINING CENTER IN CHENNAI Dependent on the density & Elastic properties of that materials & types of waves transmitted.

Factors:

NDT TRAINING CENTER IN CHENNAI Total Attenuation Loss:

NDt SCHOOL - Attenuation is defined as the loss in intensity of the ultrasonic beam.
2 main causes for attenuation are,
Scattering & Absorption.

Acoustic Impedance:

Z is the resistance of a material to passage of ultra sound.

Z= e*v e- Density / v- Velocity.

SNELL'S LAW:

Ó©1 - Angle of incident.
Ó©2 - Angle of refraction.
V1 - Angle of incident.
V2 - Angle of refraction

NDT TRAINING CENTER IN CHENNAI - DECIBEL: (DB)

DB is a logarithmic base unit to compare sound intensities.

DB = 20 log 11 H1/H2.

H1 = 100%

COUPLANT:

Exclude any air that may be present b/w probe & test surface.
E.g.: water, oil, grease, polycell & glycerin.
Air - High acoustic impedance.

PROBE SELECTION:

EFFECT OF FREQUENCY:

SL NO LOW FREQUENCY HIGH FREQUENCY
1 Wave length Shorter wave length
2 More beam spread Less beam spread
3 Better penetrant Shorter penetrant
4 Shorter near zone Longer near zone
5 Less attenuation More attenuation
6 Less sensitivity Higher sensitivity
7 Longer dead zone Shorter dead zone

NDT TRAINING CENTER IN CHENNAI IN CHENNAI - TYPES OF TESTING:

NDT ULTRASONIC FLOW DETECTORS:

UT equipment basically comprises of

NDT Depending on the display of information, pulse echo equipments divided into

NDT TRAINING CENTER IN CHENNAI - CALIBRATION BLOCK

NDT TRAINING CENTER IN CHENNAI - Calibration block:

Reference block:

NDT Used to set the sensitivity level of the equipment for particular application.

NDT V1 Blocks or IIW (V1)

NDT IIW - INTERNATIONAL CENTER OF WELDING

a)NDT Resolution Check:

NDT By this check we are able to conclude that the probe is capable of identifying two or more defects at the same location.

b)NDT Penetration Check:

NDT By penetration check we can conclude that the probe can able to identify the given range for any job.

c)NDT Sensitivity Check:

NDT It can conclude that the probe can able to identify even smallest defect.

NDT V2 Blocks or IIW (V2)

NDT Aiming towards 25mm radius:

NDT Signals occurs at 25mm , 100mm , 175mm , 250mm, 325mm, 400mm.

NDT Aiming towards 50mm radius:

NDT Signals occur at 50mm, 125mm, 200mm, 275mm, 350mm, 425mm.

NDT TRAINING CENTER IN CHENNAI - REFERENCE TEST BLOCK

DAC - Distance Amplitude correction curve.
BLOCK THICK HOLE DIA TEST RANGE
19mm 2.4 Up to 25mm
38mm 3.2 25-50mm
75mm 4.8 50-102mm

UT FORMULAS

Probe selection:
Ó© = 90(degree) - T (Thickness of job)

Generally:

Beam path (W):

W or B.P = T/CosÓ©
Skip distance:

S.D = T * Tan Ó© (or) S.D = B.P * Sin Ó©

Beam path (W):

W or B.P = T/CosÓ©

Skip distance:

S.D = T * Tan Ó© (or) S.D = B.P * Sin Ó©

19mm Block:
Hole Dia - 2.4
Length - 200mm
Width - 80mm
Thickness - 19mm
Hole Depth:
1/4= 4.75
1/2= 9.50
3/4= 14.25
1= 19

ADVANTAGES:

DISADVANTAGES:

NDT TRAINING CENTER IN CHENNAI - RADIOGRAPHY TESTING (RT)

NDT TRAINING CENTER IN CHENNAI COURSE - INTRODUCTION:

NDT RT is based on exposure of the components to short wave length electromagnetic radiation in the form of x-rays or gamma rays from the suitable source.

NDT The amount of radiation absorbed by a particular part is a function of its thickness & density.

This radiation variation can be detected with the aid of photographic films.

PROCEDURE:

ASME SEC: V Article: 2 /Article: 22

PRINCIPLE:

Penetration & Differential Absorption.

NDT TRAINING CENTER IN CHENNAI - PROPERTIES OF ELECTRO MAGNETIC RADIATION:

TYPES OF RT:

X - rays are generated by electronic method.

Gamma - rays are produced by radioactive isotopes.

X-Ray:
The sudden deceleration of fast moving electron due to collision with target produces continuous X - ray spectrum.

NDT TRAINING CENTER IN CHENNAI - BASIC CONSTRUCTION:

X-ray tube is essentially a glass vacuum tube. There are cathode & anode. Near the cathode there is a heated filament which is a source of electrons.

The anode is made of copper block to facilitate easy heat transfer. As a large amount of heat is generated at the tungsten target is fixed to the copper anode on which the electron strike. A high KV of the order of 50 to 400 KV is applied b/w the cathode & anode to accelerate the electrons. The generations of X-ray are emitted in all the direction.

Types of isotopes:

NDT TRAINING CENTER IN CHENNAI - DISINTEGRATION LAW:

The unstable atom in the radio active nuclei emits alpha particle, beta & gamma rays to become a stable nucleus. This process is called disintegration law.

NDT TRAINING CENTER IN CHENNAI - HALF LIFE PERIOD:

It is the time taken for half of the existing unstable nucleus to become stable size & shape of isotopes.
CURIE:
The disintegration per second.
1 curie = 3.7*10^10

NDT TRAINING CENTER IN CHENNAI - GAMMA RADIOGRAPHY:

SOURCE:

SOURCE HALF LIFE PERIOD THICKNESS OF JOB TO BE RADIOGRAPHED
Iridium(Ir 192) 74.6 days Upto 75mm
Cobalt(co 60) 5.3 years 25 to 225mm
Cesium (ce 137) 22 years 40 to 100mm

NDT TRAINING CENTER IN CHENNAI - STEPS BEFORE RT:

Request:

RT should not be conducted until the client almost request.
Frequent RT cause global warming.

Barricade rope:

A barricade rope is a warning symbol & must be put around the testing area. This barricade rope must not be removed until the zone is free from radiation.

Survey meter:

It is used to find the amount of radiation in a particular location.

Dosi meter:

It is used to find the amount of radiation absorbed by human per day.

Film Badge:

It is used to calculate the amount of radiation absorbed by the individual per month.

Penetrometer:

It is a image quality indicator. It contains 6 wires. Penetrometer is placed anywhere in the welded area but not in the base metal. It is used to prove the quality.

Sensitivity= Wire Thickness * 100 / Material Thickness
Selection of film:
Lead number box:

A job batch number is imprinted on lead sheet & placed over the job while conducting RT to indicate the job number over the film.

Selection of Source:
RT Techniques: (methods)
NDT TRAINING CENTER IN CHENNAI - SWSI:

A single-wall exposure technique shall be used for radiography whenever practical. When it is not practical to use a single-wall radiographic testing technique, a double-wall technique shall be used. An adequate number of exposures shall be made to demonstrate that the required coverage has been obtained.

Single-Wall Technique. In the single-wall radiographic testing technique, the radiation passes through only one wall of the weld (material), which is viewed for acceptance on the radiograph.

In this method source is kept at the centre of the pipe & film covering the outer dia of the pipe on the welded area.

DWSI:

Whenever the panoramic method is not possible DWSI method is adopted. This method is done for above 3 pipes .Total pipe weld length is divided into 3 segments A, B & C.

3 Shots should be taken while placing the film AB, BC & CA. Penetrometer should be placed on FS only.

DWDI:

It is suitable for less than 3 inches. Two shots should be taken in this DWDI method (at 180 degree).

NDT TRAINING CENTER IN CHENNAI - RADIATION EFFECT:

1 REM=1RAD
REM - Roentgen equivalent mean.
RAD - Radiation absorbed dose.

SOMATIC EFFECT:

The individual is affected by radiation & is self harmed.

GENETIC EFFECT:

The radiation effect is passed over to the children of the affected individual.

NDT TRAINING CENTER IN CHENNAI - RADIATION DOSES & EFFECTS :

NDT RT ADVANTAGES

NDT RT DISADVANTAGES:

NDT TRAINING CENTER IN CHENNAI - ULTRASONIC THICKNESS GAUGING (UTG / UTM)

INTRODUCTION:

NDT An Ultrasonic Thickness Gauge is a "Transit Time Measuring Device".Used to find the thickness of a material.

FORMULA:

T = V * t / 2
Where,
V --> Velocity
t --> Transit time
Transit Time : Time measured for one to & fro distance.

TEMPERATURE LIMIT:

Below 93 degree Celsius (200 Fahrenheit)

TESTING RANGE:

1mm to 300 mm

AREA OF APPLICATION:

SOME TYPICAL APPLICATION:

Gauging/Measuring Techniques

Clean Surface:

NDT COURSE IN CHENNAI Before to gauging, always remove any dirt, loose scale, corrosion, Particles or other foreign substance from the material surface.

NDT TRAINING CENTER IN CHENNAI For Excessive Surface Roughness or Grooved Surface:

NDT TRAINING CENTER IN CHENNAI For very rough surface or grooved surface high viscosity couplant like grease is recommended.

Couplant :( For Smooth Surface)

NDT TRAINING CENTER IN CHENNAI For smooth surface suitable couplant is machine oil or even water is sufficient.

Advantage:

DisAdvantage:

VISUAL TESTING (VT)

PROCEDURE

ASME Sec - V, Article 9 /
Acceptance Criteria: Sec. VIII Division 1 (Welds)

Introduction

NDT TRAINING CENTER IN CHENNAI Visual testing requires adequate illumination on the test surface and proper eye-sight of the tester. The most effective visual testing requires training.

NDT TRAINING CENTER IN CHENNAI Visual testing can be classified as direct visual testing, remote visual testing and translucent visual testing. Often the equipment needed is simple.

NDT IN CHENNAI A portable light, a mirror, a 2X or 4X hand lens, illuminated magnifier with magnification 5X or 10X. For internal inspection, light lens systems such as bore scopes allow remote surfaces to be examined.

NDT COURSE IN CHENNAI More sophisticated devices using fiber optics, it permits the introduction of the device into very small access holes and channels. Most of these systems provide for the attachment of a camera to permit permanent recording.

APPLICATION

PHYSICAL REQUIREMENTS

NDT TRAINING CENTER IN CHENNAI Personnel shall have an annual vision test to assure natural or corrected near distance acuity such that they are capable of reading standard J-1 letters on standard Jaeger test type charts for near vision. Equivalent near vision tests are acceptable.

NDT IN TAMIL NADU EQUIPMENT USED USED IN VISUAL INSPECTION

NDT IN INDIA Equipment used for visual examination shall include

TYPES OF TECHNIQUE / EXAMINATION

DIRECT VISUAL EXAMINATION

NDT COURSE Direct visual examination may usually be made when access is sufficient to place the eye within 24 in. (600 mm) of the surface to be examined and at an angle not less than 30 deg to the surface to be examined. The minimum light intensity is 1000 lux (100 footcandles).

REMOTE VISUAL EXAMINATION

NDT COURSE IN BANGALORE Remote visual examination may have to be substituted for Direct visual examination. Remote visual examination may use Visual aids such as mirrors, telescopes, fiber optics, cameras, or other suitable instruments.

TRANSLUCENT VISUAL EXAMINATION

NDT TRAINING CENTER IN CHENNAI IN COIMBATORE Translucent visual examination is a supplement of direct visual examination. The method of Translucent visual examination uses the aid of artificial lighting., which can contained in an illuminator that produces directional lighting.

SURFACE CONDITION

NDT TRAINING CENTER IN CHENNAI IN COIMBATORE Surface prepared by gas cutting or arc cutting for welding shall be uniform and smooth and shall be free of all loose scale and slag accumulations.
NDT TRAINING CENTER IN CHENNAI IN TAMIL NADU The surface to be welded shall be clean and free of scale, rust, oil, grease, slag, detrimental oxides and other deleterious foreign materials.
The surface of the fillet weld shall merge smoothly with the surfaces joined.

METHOD OF EXAMINATION

ACCEPTANCE STANDARD OF BUTT WELDS

ACCEPTANCE STANDARD FOR FILLET WELDS

INSPECTION EVALUATION

NDT IN CHENNAI All examinations shall be evaluated in terms of the acceptance standards of the referencing Code Section.

INSPECTION DOCUMENTATION

ADVANTAGE OF VISUAL TESTING

LIMITATION FOR VISUAL TESTING

INTRODUCTION OF DESTRUCTIVE TESTING

CHENNAI NDT The process of testing a material quality by damaging the material is called as Destructive Testing.

TYPES OF DESTRUCTIVE TESTING:

QUANTITATIVE TESTING

Mechanical Testing
Bend Test
Fatigue test
Izod / Charpy

QUALITATIVE TESTING

Toughness
Hardness Test
Ductility
Strength
Fusion & Penetration

MECHANICAL TESTS

NDT TRAINING CENTER IN CHENNAI CHENNAI Mechanical Properties (Tensile Test, Yield Test, Elongation)
Welder Qualification (Bend Test, Re-bend Test, Root bend, Face bend, Side bend Testing)
Fatigue Test
Impact Test

LABORATORY TESTS

NDT COURSE CHENNAI Chemical Analysis
Micro - Grain size
Macro corrosive Test
Plating Thickness
Micro Hardness
Weld depth Penetration
Inclusion Rating
Welder Qualification Testing

FAILURE ANALYSIS

COIMBATORE IN NDT Product Evaluation
Process Evaluation
Mechanical Damage
Root Cause determination
Determination of Origin of failure
Material Anomalies

INTRODUCTION TO NONDESTRUCTIVE TESTING

Definition of NDT

TRICHY IN NDT The Process of testing a material for detecting surface and internal defects without destroying the material. I.e. inspect or Examine without doing harm.

Methods of NDT

Uses of NDT Methods

Common Application of NDT

Inspection of Raw Products

Inspection Following Secondary Processing

In-Services Damage Inspection

QC CONTENTS:

PLACEMENT CATEGORIES:

SECTORS

LIQUID PENETRANT TESTING

NDT TRAINING CENTER IN CHENNAI Liquid penetrant testing (PT) is only used for detecting discontinuities open to the surface. With the correct application, it will detect discontinuities ranging in size from the large to the microscopic. The specially prepared liquids, characterized by low a viscosity, easily enter voids open to the surface when the part is dipped into or sprayed by the penetrant. Relatively simple, inexpensive and reliable.

MAGNETIC PARTICLE TESTING

NDT TRAINING CENTER IN CHENNAI Magnetic particle testing (MT) is used to detect discontinuities in ferromagnetic parts – namely parts made of iron, steel, nickel, cobalt and the alloys of these materials. Ferromagnetic materials develop strong internal magnetic fields when an electric current is passed through the part. Magnetic particles are applied to the part and a discontinuity that causes a disruption in the induced magnetic field attracts the applied particles, producing an indication.
MT is a highly effective inspection tool that is sensitive to the presence of cracks, laps, seams and similar types of surface and near-surface discontinuities.

ULTRASONIC TESTING

NDT TRAINING CENTER IN CHENNAI Ultrasonic testing (UT) is used in the testing of nearly all solid materials, such as fine-grained aluminum, steels and alloys, composites and plastics – practically any solid material where detection of internal discontinuities or thickness measurements are of most common concern.

It is also used in the detection of interlaminar separations and regions that have been improperly processed or damaged in layered composite structures.

It is used in the detection and sizing of internal reflectors of ultrasonic pulses and thus is found in the testing of welds, forgings and raw materials in the form of plate, rod, pipe and similar simple geometrical shapes.

RADIOGRAPHIC TESTING

NDT COURSE IN CHENNAI Inspection techniques using radiographic testing (RT) are some of the most common approaches to visualizing the internal structures of components, materials and assemblies. The approach requires a source of electromagnetic radiation that can penetrate the item being examined during exposure (the time the item is illuminated by the radiation).

Applications for RT are found throughout manufacturing and field-service environments. Raw materials are examined for the presence of internal discontinuities (castings, forgings); fabrications and assemblies are examined for induced discontinuities (welds) and misalignments or absence of internal parts; and inservice inspections use RT for detecting and assessing time-dependant degradation, such as corrosion, cracking and environmental damage.

VISUAL TESTING

NDT COURSE Visual testing is the most commonly used test method in industry. Because most test methods require that the operator look at the surface of the part being inspected, visual inspection is inherent in most of the other test methods. As the name implies, VT involves the visual observation of the surface of a test object to evaluate the presence of surface discontinuities. VT inspections may be by Direct Viewing, using line-of sight vision, or may be enhanced with the use of optical instruments such as magnifying glasses, mirrors, boroscopes, and computer-assisted viewing systems (Remote Viewing). Corrosion, misalignment of parts, physical damage and cracks are just some of the discontinuities that may be detected by visual examinations.

EDDY CURRENT TESTING

NDT IN TAMIL NADU Eddy current testing is particularly well suited for detecting surface cracks but can also be used to make electrical conductivity and coating thickness measurements.

Periodically, power plants are shutdown for inspection. Inspectors feed eddy current probes into heat exchanger tubes to check for corrosion damage.
NDT COURSE IN INDIA Alternating electrical current is passed through a coil producing a magnetic field. When the coil is placed near a conductive material, the changing magnetic field induces current flow in the material. These currents travel in closed loops and are called eddy currents. Eddy currents produce their own magnetic field that can be measured and used to find flaws and characterize conductivity, permeability, and dimensional features.

Acoustic Emission Testing (AE)

NDT IN MUMBAI Acoustic Emission Testing is performed by applying a localized external force such as an abrupt mechanical load or rapid temperature or pressure change to the part being tested. The resulting stress waves in turn generate short-lived, high frequency elastic waves in the form of small material displacements, or plastic deformation, on the part surface that are detected by sensors that have been attached to the part surface. When multiple sensors are used, the resulting data can be evaluated to locate discontinuities in the part.

Leak Testing (LT)

NDT IN DELHI NOIDA Leak Testing, as the name implies, is used to detect through leaks using one of the four major LT techniques: Bubble, Pressure Change, Halogen Diode and Mass Spectrometer Testing. These techniques are described below.

Bubble Leak Testing, as the name implies, relies on the visual detection of a gas (usually air) leaking from a pressurized system. Small parts can be pressurized and immersed in a tank of liquid and larger vessels can be pressurized and inspected by spraying a soap solution that creates fine bubbles to the area being tested. For flat surfaces, the soap solution can be applied to the surface and a vacuum box can be used to create a negative pressure from the inspection side. If there are through leaks, bubbles will form, showing the location of the leak.

Pressure Change Testing NDT IN TAMIL NADU can be performed on closed systems only. Detection of a leak is done by either pressurizing the system or pulling a vacuum then monitoring the pressure. Loss of pressure or vacuum over a set period of time indicates that there is a leak in the system. Changes in temperature within the system can cause changes in pressure, so readings may have to be adjusted accordingly.

Halogen Diode TestingNDT COURSE IN CHENNAI is done by pressurizing a system with a mixture of air and a halogen-based tracer gas. After a set period of time, a halogen diode detection unit, or "sniffer", is used to locate leaks.

Mass Spectrometer Testing NDT CENTRE IN CHENNAI can be done by pressurizing the test part with helium or a helium/air mixture within a test chamber then surveying the surfaces using a sniffer, which sends an air sample back to the spectrometer. Another technique creates a vacuum within the test chamber so that the gas within the pressurized system is drawn into the chamber through any leaks. The mass spectrometer is then used to sample the vacuum chamber and any helium present will be ionized, making very small amounts of helium readily detectable.

Neutron Radiographic Testing (NR)

NDT TRAINING CENTER IN CHENNAI Neutron radiography uses an intense beam of low energy neutrons as a penetrating medium rather than the gamma- or x-radiation used in conventional radiography. Generated by linear accelerators, betatrons and other sources, neutrons penetrate most metallic materials, rendering them transparent, but are attenuated by most organic materials (including water, due to its high hydrogen content) which allows those materials to be seen within the component being inspected. When used with conventional radiography, both the structural and internal components of a test piece can be viewed.

Thermal/Infrared Testing (IR)

Thermal/Infrared Testing, or infrared thermography, is used to measure or map surface temperatures based on the infrared radiation given off by an object as heat flows through, to or from that object. The majority of infrared radiation is longer in wavelength than visible light but can be detected using thermal imaging devices, commonly called "infrared cameras." For accurate IR testing, the part(s) being investigated should be in direct line of sight with the camera, i.e., should not be done with panel covers closed as the covers will diffuse the heat and can result in false readings. Used properly, thermal imaging can be used to detect corrosion damage, delaminations, disbonds, voids, inclusions as well as many other detrimental conditions.

Vibration Analysis (VA)

NDT TRAINING CENTER IN CHENNAI Vibration analysis refers to the process of monitoring the vibration signatures specific to a piece of rotating machinery and analyzing that information to determine the condition of that equipment. Three types of sensors are commonly used: displacement sensors, velocity sensors and accelerometers.
AEROSPACE NDT NAS 410 COURSE IN CHENNAI Displacement sensors uses eddy current to detect vertical and/or horizontal motion (depending on whether one or two sensors are used) and are well suited to detect shaft motion and changes in clearance tolerances.
Basic velocity sensors use a spring-mounted magnet that moves through a coil of wire, with the outer case of the sensor attached to the part being inspected. The coil of wire moves through the magnetic field, generating an electrical signal that is sent back to a receiver and recorded for analysis. Newer model vibration sensors use time-of-flight technology and improved analysis software. Velocity sensors are commonly used in handheld sensors.
AEROSPACE NDT TRAINING CENTER IN CHENNAI Basic accelerometers use a piezoelectric crystal (that converts sound waves to electrical impulses and back) attached to a mass that vibrates due to the motion of the part to which the sensor casing is attached. As the mass and crystal vibrate, a low voltage current is generated which is passed through a pre-amplifier and sent to the recording device. Accelerometers are very effective for detecting the high frequencies created by high speed turbine blades, gears and ball and roller bearings that travel at much greater speeds than the shafts to which they are attached.

NDT CENTRE IN CHENNAI We are providing Level I, II Training and Certification as per Recommended Practice NDT LEVEL II & ASNT - TC-1A -2006 in the following NDT Methods.

NDT - Central Govt.Approved NABL LAB FOR NDT - The NDT Approach

NDT TRAINING CENTER IN CHENNAI , NDT COURSE IN INDIA, NDT TRAINING IN INDIA, The NDT TRAINING CENTER IN CHENNAI & INSPECTION TECHNOLOGY LTD., NDT is a NDT Course Training specialises in programmed NDT courses at level I and II encompassing both practical and theoretical techniques in the NDT disciplines as listed under the NDT Course METHODS tab on this site.

NDT TRAINING CENTER IN CHENNAI | NDT TRAINING CENTER IN CHENNAI COURSE IN CHENNAI | NDT TRAINING CENTER IN CHENNAI | NDT TRAINING CENTER IN CHENNAI IN TAMIL NADU | NDT TRAINING CENTER IN CHENNAI | NDT TRAINING CENTER IN CHENNAI | NDT LEVEL I II COURSE IN CHENNAI | NDT IN CHENNAI | NDT COURSE CHENNAI NDT TRAINING IN INDIA, NDT COURSE IN CHENNAI ,NDT CENTER IN CHENNAI,NDT IN INDIA,, ASNT NDT COURSES, NDT TRAINING CENTER IN CHENNAI IN INDIA,NDT TRAINING & CERTIFICATION CENTER IN CHENNAI,INDIA..NDT COURSE IN CHENNAI , NDT COURSE IN INDIA,NDT CENTER IN INDIA, Non-destructive testing, commonly abbreviated NDT course is simply defined as the testing of materials for surface or internal flaws without causing any destruction or harm to the material under test.

NDT TRAINING CENTER IN CHENNAI - NDT CENTER IN INDIA ,Non-destructive testing is a career field that is relatively obscure in the minds of the general public.

NDT COURSE TRAINING CENTER IN CHENNAI

NDT NDT TRAINING CENTER IN CHENNAI IN INDIA,The name seems totally self-explanatory, but most NDT professionals can definitely relate to the experience of trying to explain what non-destructive testing means to family members, friends and acquaintances.

NDT TRAINING CENTER IN CHENNAI COURSE IN CHENNAI NDT COURSE IN INDIA,Most students when considering career options are completely unaware that NDT is a very exciting and rewarding career field. `Career’ being the important word.

NDT TRAINING CENTER IN CHENNAI CSWIP COURSE IN INDIA, Every bit of knowledge acquired during training, experience and certification has to be productively put to use and most importantly the learning process never ends.

NDT COURSE IN CHENNAI CSWIP WELDING INSPECTOR COURSE IN INDIA, The NDT Course process relies on the careful approach of the technician, his dedication, thoroughness, perseverance and the usage of sound work procedures referencing codes and specifications.

NDT TRAINING CENTER IN CHENNAI CSWIP WELDING COURSE IN TAMIL NADU, INDIA, As a fundamental part of the engineering, manufacturing and in-service process, NDT Course in chennai utilises the human senses of sight, touch and hearing, amplified by a broad selection of equipment and apparatus to interpret and evaluate materials. NDT course is the most widely used chemical and physical inspection method to investigate the composition of materials by means of sound waves, electrical currents, X- and Gamma rays, magnetic fields, thermal waves and tracer liquids directed into and in most cases , penetrating the materials under test.

NDT course IN CHENNAI is particularly effective at locating performance degrading conditions such as cracking, voids, inclusions, unbonded surfaces, incorrect assembly, incorrect dimension, wall thinning, porosity, incorrect coating thickness, poorly welded fabrications, defects in castings, forgings, rolled products and defects in a host of unlimited manufacturing processes.

Essentially, Non-destructive testing assists in the detection and characterisation of material deficiencies without inhibiting the parts usefulness in any way.

Founding Statement NDT COURSES IN CHENNAI ,TAMIL NADU , INDIA

‘NIITL a company with a strong NDT present and a strong NDT future.

NDT TRAINING CENTER IN CHENNAI The NDT TRAINING CENTER IN CHENNAI was founded in January of 2004. As we at NIITL proceed in all our efforts, with unequivocal excellence, I aim to change that opening statement, in time to include, ‘A strong NDT Past’.

NDT TRAINING CENTER IN CHENNAI Our philosophy is to continually provide thorough and attentive service to our clients bringing the utmost level of integrity to our training efforts and to strive to maintain our knowledgeable position in the ever-changing NDT world. NIITL shall remain productive and always be a contender, employing good work ethics as a foundation for success.

NDT COURSE IN CHENNAI As the founder of the Academy I shall endeavour to instill the highest quality in all aspects of the company. As an independent NDT TRAINING CENTER IN CHENNAI facility NIITL possess the flexibility to tailor programs to meet the client’s needs. We shall be of assistance to you, and shall be continually asking ourselves, how can we advantageously improve?

NDT IN TAMIL NADU Supporting the NIITL NDT Course training facility, a NDT Certification Committee has been established employing the experience, skills and knowledge of NDT Level III’s and appropriately experienced members of the NDT community in Chennai, India . NIITL - exists as an independent body and has no involvement in the training of students.

GOVERNMENT NDT TRAINING CENTER IN CHENNAI - With the establishment of the NIITL in compliance with SNT-TC-1A the prime objective in the very near future is to invite and incorporate all other NDT course training facilities and Qualifying bodies in India - NABL . to work together to establish technical harmonisation of NDT course certification. This would inspire greater confidence in the resulting certification which will facilitate mutual recognition and worldwide acceptance of the national NDT Course certificates issued in India.

CENTRAL GOVT APPROVED NDT TRAINING CENTER IN CHENNAI At NIITL and the MTL we believe in having total transparency in our NDT TRAINING CENTER IN CHENNAI Course and certification program, and openly welcome any form of official Audit by any, and all interested parties of the NDT TRAINING CENTER IN CHENNAI related community at any time. With pride and dynamism we aspire to become the pre-eminent NDT TRAINING CENTER IN CHENNAI facility in Chennai. When we become aware of what is possible we begin to realise that success can be achieved, that challenges can be conquered and that problems can be solved. In doing so we open up a completely new set of avenues and possibilities, for ourselves and you.

NDT TRAINING CENTER IN CHENNAI IN MUMBAI Albert Einstein said, ‘Imagination is more powerful than knowledge.’ I believe that this is true in many respects because while knowledge allows you to see things as they are, imagination allows you to see things as they could be.

NDT IN BANGALORE Having said that I shall leave you with the official motto of our country… India, alive with possibility.

NDT COURSE IN CHENNAI (NDT DETAILS)

LIQUID PENETRANT TESTING

NDT COURSE IN TAMIL NADU , INDIA One of the most common ways to enhance NDT COURSE visual testing (VT) is through the introduction of highly visible penetrating liquids. These specially prepared liquids, characterized by low a viscosity, easily enter voids open to the surface when the part is dipped into or sprayed by the penetrant.

Relatively simple, inexpensive and reliable, NDT Course liquid penetrant testing (PT) is only used for detecting discontinuities open to the surface. With the correct application, it will detect discontinuities ranging in size from the large to the microscopic.

ADVANTAGES

Liquid penetrant testing:

• NDT Course in chennai is one of the more sensitive nondestructive testing methods for detecting very small surface discontinuities.

• NDT Course in chennai can be used on a wide variety of materials, including ferrous and nonferrous metals, alloys, powdered metal products, glass and some types of organic materials.

• NDT Course in chennai can be performed with relatively inexpensive, unsophisticated equipment. If the area to be tested is small, the test can be conducted with portable equipment.

• NDT Course in chennai is capable of examining all of the exterior surfaces of objects, even of complex shapes, in one operation. Other NDT - nondestructive testing methods require the probing media to be directed to a specific surface or area, whereas liquid penetrant Testing can coat the entire part. Parts that are too large for immersion can be processed by spraying the liquid penetrant materials to provide complete surface coverage.

• NDT Course in chennai is readily adapted to volume processing, permitting 100% testing. Small parts may be placed in baskets for batch processing. Specialized systems may be automated to process as many parts per hour as required.

• NDt Course in chennai magnifies the apparent size of discontinuities, making the indications more visible. In addition, the discontinuity location, orientation and approximate length are indicated on the part, making interpretation and evaluation possible.

• NDT Course in Chennai may be adjusted to provide various sensitivity levels through the proper choice of materials and processing procedures or techniques.

DISADVANTAGES AND LIMITATIONS

The PT method has several disadvantages and limitations. Inspectors using PT should note that:

• NDT TRAINING CENTER IN CHENNAI|NDT TRAINING CENTER IN CHENNAI|NDT TRAINING CENTER IN CHENNAI| NDT COURSE IN CHENNAI | NDT TRAINING CENTER IN CHENNAI | NDT TRAINING CENTER IN CHENNAI |NDT TRAINING CENTER IN CHENNAI | NDT COURSE IN CHENNAI| discontinuities must be open to the surface, as well as free of foreign material that could restrict the entry of the penetrant into the discontinuity.

• NDT TRAINING CENTER IN CHENNAI - liquid penetrants, emulsifiers (liquids that combine with oil-based penetrants to make them water-washable) and some types of developers may cause skin irritation.

• NDT TRAINING CENTER IN CHENNAI - liquid penetrants may harm some nonmetallic materials, such as rubber and plastic. There is also the possibility of permanent staining of porous or coated materials.

• NDT TRAINING CENTER IN CHENNAI - some liquid penetrant materials contain volatile solvents that can produce nausea; thus, adequate ventilation is necessary to remove noticeable vapors, especially in confined areas.

• NDT TRAINING CENTER IN CHENNAI - liquid penetrants, especially in aerosol form, are flammable. Inspectors must follow manufacture’s recommendations regarding necessary personnel protective equipment when using such equipment.

NDT TRAINING CENTER IN CHENNAI

MAGNETIC PARTICLE TESTING

NDT TRAINING CENTER IN CHENNAI - Magnetic particle testing (MT) is used to detect discontinuities in ferromagnetic parts – namely parts made of iron, steel, nickel, cobalt and the alloys of these materials. Ferromagnetic materials develop strong internal magnetic fields when an electric current is passed through the part. Magnetic particles are applied to the part and a discontinuity that causes a disruption in the induced magnetic field attracts the applied particles, producing an indication.

NDT TRAINING CENTER IN CHENNAI - MT is a highly effective inspection tool that is sensitive to the presence of cracks, laps, seams and similar types of surface and near-surface discontinuities.

NDT TRAINING CENTER IN CHENNAI - Non-relevant indications can sometimes be found near sharp transitions in test part geometry and at metallurgical anomalies introduced during welding due to localized thermal shock, usually associated with the heat-affected zone near welds. Depending on the type of discontinuity and the direction expected, test parts should be examined in two orthogonal (perpendicular) directions because discontinuities must have a major dimension perpendicular to the magnetic field lines of force in order to be detected.

ADVANTAGES

Magnetic particle testing offers the following advantages:

• NDT - low-cost, reliable method for locating surface cracks in ferromagnetic materials.

• NDT - few limitations on size and shape of part.

• NDT - particle size and sensitivity can be adjusted.

• NDT - particles may be in colour or made to fluoresce under ultraviolet radiation.

• NDT - portable if required for field use.

• NDT - can use permanent magnets if no electrical power is available.

• NDT - can use 12 V power sources (car batteries).

• NDT - fairly fast and simple application process.

• NDT - visual interpretation of indications.

• NDT - can detect subsurface discontinuities in some conditions.

DISADVANTAGES

Disadvantages of magnetic particle testing include the following:

• NDT - can be used only on ferromagnetic materials.

• NDT - large electrical currents are required for certain test applications.

• NDT - magnetic field must be properly orientated.

• NDT - correct selection and process of application of particles can severely limit sensitivity.

• NDT - too much current is often used, masking discontinuities with spurious indications.

• NDT - false indications often occur in transition areas.

• NDT - burning of parts can occur at contact points, damaging heat treatment and, in severe cases, destroying the part.

• NDT - skin burn may occur from suspension oils.

• NDT - some fire risks occur when using open tanks and oil-suspended particles.

NDT TRAINING CENTER IN CHENNAI

ULTRASONIC TESTING

Ultrasonic testing (UT) is used in the testing of nearly all solid materials, such as fine-grained aluminum, steels and alloys, composites and plastics – practically any solid material where detection of internal discontinuities or thickness measurements are of most common concern.

It is also used in the detection of inter laminar separations and regions that have been improperly processed or damaged in layered composite structures.

This technique is less effective with highly in homogeneous and coarse- grained materials (such as concrete and stainless steel castings) and non-elastic materials (such as rubber and soft plastics) that tend to absorb or scatter ultrasonic energy at relatively short distances.

This form of testing has become a commonly accepted approach to wall thickness measurement when access is limited to one side of the material. It is used in the detection and sizing of internal reflectors of ultrasonic pulses and thus is found in the testing of welds, forgings and raw materials in the form of plate, rod, pipe and similar simple geometrical shapes.

ADVANTAGES

Advantages of ultrasonic testing include:

• NDT - high sensitivity to the discontinuities that are most critical to structural integrity. For example, lack of fusion and incomplete penetration in welds are commonly detected. Also, cracks in both welds and bulk material are often very easy to detect.

• NDT - highly portable equipment, which is well suited to field inspection and inspection of in-service structures.

• NDT -application to a broad range of materials.

• NDT -in many cases, the ability to inspect very thick material, as well as the ability to detect discontinuities as small as 0.4 mm (0.016 in.) in diameter.

• NDT -in general access to only one surface is required.

• NDT -results are generated instantly with little or no processing time.

DISADVANTAGES

• Ultrasonic testing has several disadvantages and limitations. It should be noted that:

• inspection of complex shapes is very difficult.

• interpretations of UT indications require a high degree of operator training, experience and skill.

• there is a lack of definitive sizing capability, especially for diffuse discontinuities such as porosity or stress-corrosion cracking.

• discontinuities must be favorably orientated with respect to an accessible scan surface.

• a couplant, typically a liquid, must be placed on the scan surface in order for the sound to enter the part.

• typically no permanent record, comparable to a radiograph, is produced.

NDT COURSE IN CHENNAI

RADIOGRAPHIC TESTING

Inspection techniques using radiographic testing (RT) are some of the most common approaches to visualizing the internal structures of components, materials and assemblies. The approach requires a source of electromagnetic radiation that can penetrate the item being examined during exposure (the time the item is illuminated by the radiation).

Applications for RT are found throughout manufacturing and field-service environments. Raw materials are examined for the presence of internal discontinuities (castings, forgings); fabrications and assemblies are examined for induced discontinuities (welds) and misalignments or absence of internal parts; and inservice inspections use RT for detecting and assessing time-dependant degradation, such as corrosion, cracking and environmental damage.

ADVANTAGES

Radiographic testing provides the following advantages:

• NDT - can easily locate internal structural discontinuities using visual comparison with known geometric features of the test object.

• NDT - is applicable to most classes of materials.

• NDT - is considered by many to be the most universal approach to volumetric examination.

• NDT - yields a visual rendition of internal voids and fabrication errors that is readily interpretable.

• NDT -provides a permanent record of the inspection, including evidence of the sensitivity of the test when the image quality indicators (IQIs) are used.

• NDT - is capable of detecting local changes in thickness and density on the order of 1%, as measured along the line of sight of the X-ray beam.

• NDT - can provide a digital record of the test object for subsequent display on a computer monitor. DISADVANTAGES

Some disadvantages and limitations of radiographic testing include the following:

• NDT - it is a relatively expensive method of nondestructive testing.

• NDT - it is impractical to use on specimens of complex geometry.

• NDT - isolated local discontinuities, with in-line dimensions much less than 2% of the total thickness, are usually not detected.

• NDT - the specimen must lend itself to two-sided accessibility.

• NDT - laminar type discontinuities are often undetected by radiography because they are aligned transverse to the path of radiation.

• NDT - it requires highly trained and skilled personnel.

• NDT - operating licenses issued by state and federal agencies are required.

NDT TRAINING CENTER IN CHENNAI SCHOOL IN CHENNAI

EDDY CURRENT TECHNIQUE

NDT COURSE IN CHENNAI One of the more widely practiced ET techniques is eddy current testing. The flow of eddy currents is affected by fissures, constrictions or other discontinuities that cause distortions in the cross section through which the current is made to flow. Thus, the eddy current technique is useful for detecting the wall thickness of thin materials as well as measuring localized discontinuities. The thickness of the part must be within the depth of penetration (referred to as the skin depth) of the eddy currents and is dependent upon material properties and operating frequency. It is usually less than 0.635 cm (0.25 in.) and may be very much less, particularly for ferromagnetic materials.

ADVANTAGES

• NDT - Advantages of eddy current testing include the following:

• NDT - provides instantaneous results.

• NDT - uses portable equipment that may be readily adapted to automation.

• NDT - causes no damage to the material.

• NDT - presents no health hazards to the technician.

• NDT - is intrinsically safe as a testing tool, requiring only the coupling of an alternating magnetic field with the component under test to provide the interrogatory medium.

DISADVANTAGES

• NDT - Eddy current testing is affected by the following limitations:

• NDT - testing is limited to those metals and carbon fiber composites that are conductors of electrical currents.

• NDT - when the test part is composed of a ferromagnetic material, the depth of penetration into the material is vastly reduced.

• NDT - although discontinuities perpendicular to the surface being scanned are readily detected, discontinuities parallel to the surface, such as laminations, are generally not detected.

• NDT - in ferromagnetic materials, conditions such as work hardening and heat treating tend to introduce large variations in detected signals and may obscure the responses of most interest.

• NDT - Through the use of magnetic saturation techniques, however, many of these kinds of limitations can be removed.

NDT TRAINING CENTER IN CHENNAI AND INSPECTION TECHNOLOGY LIMITED.,

VISUAL TESTING

Throughout manufacturing and field inspection, visual testing (VT) is the most widely used NDT method.

The presence of a multitude of potential problem areas can be identified by knowledgeable observers, assisted by devices that magnify, qualify or quantify the conditions being evaluated.

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NDT TRAINING CENTER IN CHENNAI - LIQUID PENETRANT TESTING

Liquid penetrant testing (PT) is only used for detecting discontinuities open to the surface. With the correct application, it will detect discontinuities ranging in size from the large to the microscopic. The specially prepared liquids, characterized by low a viscosity, easily enter voids open to the surface when the part is dipped into or sprayed by the penetrant. Relatively simple, inexpensive and reliable.

NDT COURSE IN CHENNAI - MAGNETIC PARTICLE TESTING

Magnetic particle testing (MT) is used to detect discontinuities in ferromagnetic parts – namely parts made of iron, steel, nickel, cobalt and the alloys of these materials. Ferromagnetic materials develop strong internal magnetic fields when an electric current is passed through the part. Magnetic particles are applied to the part and a discontinuity that causes a disruption in the induced magnetic field attracts the applied particles, producing an indication. MT is a highly effective inspection tool that is sensitive to the presence of cracks, laps, seams and similar types of surface and near-surface discontinuities.

NDT TRAINING CENTER IN CHENNAI -ULTRASONIC TESTING

Ultrasonic testing (UT) is used in the testing of nearly all solid materials, such as fine-grained aluminum, steels and alloys, composites and plastics – practically any solid material where detection of internal discontinuities or thickness measurements are of most common concern.

It is also used in the detection of interlaminar separations and regions that have been improperly processed or damaged in layered composite structures.

It is used in the detection and sizing of internal reflectors of ultrasonic pulses and thus is found in the testing of welds, forgings and raw materials in the form of plate, rod, pipe and similar simple geometrical shapes.

NDT IN CHENNAI - RADIOGRAPHIC TESTING

Inspection techniques using radiographic testing (RT) are some of the most common approaches to visualizing the internal structures of components, materials and assemblies. The approach requires a source of electromagnetic radiation that can penetrate the item being examined during exposure (the time the item is illuminated by the radiation). Applications for RT are found throughout manufacturing and field-service environments. Raw materials are examined for the presence of internal discontinuities (castings, forgings); fabrications and assemblies are examined for induced discontinuities (welds) and misalignments or absence of internal parts; and inservice inspections use RT for detecting and assessing time-dependant degradation, such as corrosion, cracking and environmental damage.

NDT TRAINING CENTER IN CHENNAI - VISUAL TESTING

Visual testing is the most commonly used test method in industry. Because most test methods require that the operator look at the surface of the part being inspected, visual inspection is inherent in most of the other test methods. As the name implies, VT involves the visual observation of the surface of a test object to evaluate the presence of surface discontinuities. VT inspections may be by Direct Viewing, using line-of sight vision, or may be enhanced with the use of optical instruments such as magnifying glasses, mirrors, boroscopes, and computer-assisted viewing systems (Remote Viewing). Corrosion, misalignment of parts, physical damage and cracks are just some of the discontinuities that may be detected by visual examinations.

NDT TRAINING CENTER IN CHENNAI IN COIMBATORE - EDDY CURRENT TESTING

Eddy current testing is particularly well suited for detecting surface cracks but can also be used to make electrical conductivity and coating thickness measurements.

Periodically, power plants are shutdown for inspection. Inspectors feed eddy current probes into heat exchanger tubes to check for corrosion damage.

Alternating electrical current is passed through a coil producing a magnetic field. When the coil is placed near a conductive material, the changing magnetic field induces current flow in the material. These currents travel in closed loops and are called eddy currents. Eddy currents produce their own magnetic field that can be measured and used to find flaws and characterize conductivity, permeability, and dimensional features.

NDT TRAINING CENTER IN CHENNAI IN COIMBATORE - Acoustic Emission Testing (AE)

Acoustic Emission Testing is performed by applying a localized external force such as an abrupt mechanical load or rapid temperature or pressure change to the part being tested. The resulting stress waves in turn generate short-lived, high frequency elastic waves in the form of small material displacements, or plastic deformation, on the part surface that are detected by sensors that have been attached to the part surface. When multiple sensors are used, the resulting data can be evaluated to locate discontinuities in the part.

NDT LEVEL I II COURSE IN CHENNAI - Leak Testing (LT)

Leak Testing, as the name implies, is used to detect through leaks using one of the four major LT techniques: Bubble, Pressure Change, Halogen Diode and Mass Spectrometer Testing. These techniques are described below.

NDT TRAINING CENTER IN CHENNAI - LT Techniques

Bubble Leak Testing, as the name implies, relies on the visual detection of a gas (usually air) leaking from a pressurized system. Small parts can be pressurized and immersed in a tank of liquid and larger vessels can be pressurized and inspected by spraying a soap solution that creates fine bubbles to the area being tested. For flat surfaces, the soap solution can be applied to the surface and a vacuum box can be used to create a negative pressure from the inspection side. If there are through leaks, bubbles will form, showing the location of the leak.

Pressure Change Testing can be performed on closed systems only. Detection of a leak is done by either pressurizing the system or pulling a vacuum then monitoring the pressure. Loss of pressure or vacuum over a set period of time indicates that there is a leak in the system. Changes in temperature within the system can cause changes in pressure, so readings may have to be adjusted accordingly.

Halogen Diode Testing is done by pressurizing a system with a mixture of air and a halogen-based tracer gas. After a set period of time, a halogen diode detection unit, or "sniffer", is used to locate leaks.

Mass Spectrometer Testing can be done by pressurizing the test part with helium or a helium/air mixture within a test chamber then surveying the surfaces using a sniffer, which sends an air sample back to the spectrometer. Another technique creates a vacuum within the test chamber so that the gas within the pressurized system is drawn into the chamber through any leaks. The mass spectrometer is then used to sample the vacuum chamber and any helium present will be ionized, making very small amounts of helium readily detectable.

NDT TRAINING CENTER IN CHENNAI - Neutron Radiographic Testing (NR)

Neutron radiography uses an intense beam of low energy neutrons as a penetrating medium rather than the gamma- or x-radiation used in conventional radiography. Generated by linear accelerators, betatrons and other sources, neutrons penetrate most metallic materials, rendering them transparent, but are attenuated by most organic materials (including water, due to its high hydrogen content) which allows those materials to be seen within the component being inspected. When used with conventional radiography, both the structural and internal components of a test piece can be viewed.

NDT COURSE TRAINING IN CHENNAI - Thermal/Infrared Testing (IR)

Thermal/Infrared Testing, or infrared thermography, is used to measure or map surface temperatures based on the infrared radiation given off by an object as heat flows through, to or from that object. The majority of infrared radiation is longer in wavelength than visible light but can be detected using thermal imaging devices, commonly called "infrared cameras." For accurate IR testing, the part(s) being investigated should be in direct line of sight with the camera, i.e., should not be done with panel covers closed as the covers will diffuse the heat and can result in false readings. Used properly, thermal imaging can be used to detect corrosion damage, delaminations, disbonds, voids, inclusions as well as many other detrimental conditions.

NDT TRAINING CENTER IN CHENNAI IN TAMIL NADU - Vibration Analysis (VA)

Vibration analysis refers to the process of monitoring the vibration signatures specific to a piece of rotating machinery and analyzing that information to determine the condition of that equipment. Three types of sensors are commonly used: displacement sensors, velocity sensors and accelerometers.

Displacement sensors uses eddy current to detect vertical and/or horizontal motion (depending on whether one or two sensors are used) and are well suited to detect shaft motion and changes in clearance tolerances.

Basic velocity sensors use a spring-mounted magnet that moves through a coil of wire, with the outer case of the sensor attached to the part being inspected. The coil of wire moves through the magnetic field, generating an electrical signal that is sent back to a receiver and recorded for analysis. Newer model vibration sensors use time-of-flight technology and improved analysis software. Velocity sensors are commonly used in handheld sensors.

Basic accelerometers use a piezoelectric crystal (that converts sound waves to electrical impulses and back) attached to a mass that vibrates due to the motion of the part to which the sensor casing is attached. As the mass and crystal vibrate, a low voltage current is generated which is passed through a pre-amplifier and sent to the recording device. Accelerometers are very effective for detecting the high frequencies created by high speed turbine blades, gears and ball and roller bearings that travel at much greater speeds than the shafts to which they are attached

"NDT TRAINING CENTER IN CHENNAI.," is committed to provide most effective training with the expertise gained over the past two decades in the inspection of power stations, pressure vessels, structures, engineering components, pipe systems, storage tanks and aerospace components. Our curriculum is formalized to provide custom training programs, best practices leading to gain thorough knowledge in practical Non-destructive testing.

We are providing Level I, II Training and Certification as per Recommended Practice SNT - TC-1A -2006 in the following NDT Methods.

NDT - Central Govt.Approved NABL LAB FOR NDT - The NDT Approach

The NDT TRAINING CENTER IN CHENNAI & INSPECTION TECHNOLOGY LTD., (NIITL) is a NDT Course Training specialises in programmed NDT courses at level I and II encompassing both practical and theoretical techniques in the NDT disciplines as listed under the NDT Course METHODS tab on this site.

Non-destructive testing, commonly abbreviated NDT course is simply defined as the testing of materials for surface or internal flaws without causing any destruction or harm to the material under test.

Non-destructive testing is a career field that is relatively obscure in the minds of the general public.

NDT COURSE TRAINING CENTER IN CHENNAI

The name seems totally self-explanatory, but most NDT professionals can definitely relate to the experience of trying to explain what non- destructive testing means to family members, friends and acquaintances.

Most students when considering career options are completely unaware that NDT is a very exciting and rewarding career field. `Career’ being the important word.

Every bit of knowledge acquired during training, experience and certification has to be productively put to use and most importantly the learning process never ends.

The NDT Course process relies on the careful approach of the technician, his dedication, thoroughness, perseverance and the usage of sound work procedures referencing codes and specifications.

As a fundamental part of the engineering, manufacturing and in-service process, NDT Course in chennai utilises the human senses of sight, touch and hearing, amplified by a broad selection of equipment and apparatus to interpret and evaluate materials. NDT course is the most widely used chemical and physical inspection method to investigate the composition of materials by means of sound waves, electrical currents, X- and Gamma rays, magnetic fields, thermal waves and tracer liquids directed into and in most cases , penetrating the materials under test.

NDT course is particularly effective at locating performance degrading conditions such as cracking, voids, inclusions, unbonded surfaces, incorrect assembly, incorrect dimension, wall thinning, porosity, incorrect coating thickness, poorly welded fabrications, defects in castings, forgings, rolled products and defects in a host of unlimited manufacturing processes.

Essentially, Non-destructive testing assists in the detection and characterisation of material deficiencies without inhibiting the parts usefulness in any way.

Founding Statement NDT COURSES IN CHENNAI ,TAMIL NADU , INDIA

‘NIITL a company with a strong NDT present and a strong NDT future.

The NDT TRAINING CENTER IN CHENNAI was founded in January of 2004. As we at NIITL proceed in all our efforts, with unequivocal excellence, I aim to change that opening statement, in time to include, ‘A strong NDT Past’.

Our philosophy is to continually provide thorough and attentive service to our clients bringing the utmost level of integrity to our training efforts and to strive to maintain our knowledgeable position in the ever-changing NDT world. NIITL shall remain productive and always be a contender, employing good work ethics as a foundation for success.

As the founder of the Academy I shall endeavour to instill the highest quality in all aspects of the company. As an independent NDT TRAINING CENTER IN CHENNAI facility NIITL possess the flexibility to tailor programs to meet the client’s needs. We shall be of assistance to you, and shall be continually asking ourselves, how can we advantageously improve?

Supporting the NIITL NDT Course training facility, a NDT Certification Committee has been established employing the experience, skills and knowledge of NDT Level III’s and appropriately experienced members of the NDT community in Chennai, India . NIITL - exists as an independent body and has no involvement in the training of students.

With the establishment of the NIITL in compliance with SNT-TC-1A the prime objective in the very near future is to invite and incorporate all other NDT course training facilities and Qualifying bodies in India - NABL . to work together to establish technical harmonisation of NDT course certification. This would inspire greater confidence in the resulting certification which will facilitate mutual recognition and worldwide acceptance of the national NDT Course certificates issued in India.

At NIITL and the MTL we believe in having total transparency in our NDT TRAINING CENTER IN CHENNAI Course and certification program, and openly welcome any form of official Audit by any, and all interested parties of the NDT TRAINING CENTER IN CHENNAI related community at any time. With pride and dynamism we aspire to become the pre-eminent NDT training facility in Chennai. When we become aware of what is possible we begin to realise that success can be achieved, that challenges can be conquered and that problems can be solved. In doing so we open up a completely new set of avenues and possibilities, for ourselves and you.

Albert Einstein said, ‘Imagination is more powerful than knowledge.’ I believe that this is true in many respects because while knowledge allows you to see things as they are, imagination allows you to see things as they could be.

Having said that I shall leave you with the official motto of our country… India, alive with possibility.

NDT COURSE IN CHENNAI (NDT DETAILS)

LIQUID PENETRANT TESTING

One of the most common ways to enhance NDT COURSE visual testing (VT) is through the introduction of highly visible penetrating liquids. These specially prepared liquids, characterized by low a viscosity, easily enter voids open to the surface when the part is dipped into or sprayed by the penetrant.

Relatively simple, inexpensive and reliable, NDT Course liquid penetrant testing (PT) is only used for detecting discontinuities open to the surface. With the correct application, it will detect discontinuities ranging in size from the large to the microscopic.

ADVANTAGES

Liquid penetrant testing:

• NDT Course in chennai is one of the more sensitive nondestructive testing methods for detecting very small surface discontinuities.

• NDT Course in chennai can be used on a wide variety of materials, including ferrous and nonferrous metals, alloys, powdered metal products, glass and some types of organic materials.

• NDT Course in chennai can be performed with relatively inexpensive, unsophisticated equipment. If the area to be tested is small, the test can be conducted with portable equipment.

• NDT Course in chennai is capable of examining all of the exterior surfaces of objects, even of complex shapes, in one operation. Other NDT - nondestructive testing methods require the probing media to be directed to a specific surface or area, whereas liquid penetrant Testing can coat the entire part. Parts that are too large for immersion can be processed by spraying the liquid penetrant materials to provide complete surface coverage.

• NDT Course in chennai is readily adapted to volume processing, permitting 100% testing. Small parts may be placed in baskets for batch processing. Specialized systems may be automated to process as many parts per hour as required.

• NDt Course in chennai magnifies the apparent size of discontinuities, making the indications more visible. In addition, the discontinuity location, orientation and approximate length are indicated on the part, making interpretation and evaluation possible.

• NDT Course in Chennai may be adjusted to provide various sensitivity levels through the proper choice of materials and processing procedures or techniques.

DISADVANTAGES AND LIMITATIONS

The PT method has several disadvantages and limitations. Inspectors using PT should note that:

• NDT TRAINING CENTER IN CHENNAI - discontinuities must be open to the surface, as well as free of foreign material that could restrict the entry of the penetrant into the discontinuity.

• NDT TRAINING CENTER IN CHENNAI - liquid penetrants, emulsifiers (liquids that combine with oil-based penetrants to make them water-washable) and some types of developers may cause skin irritation.

• NDT TRAINING CENTER IN CHENNAI - liquid penetrants may harm some nonmetallic materials, such as rubber and plastic. There is also the possibility of permanent staining of porous or coated materials.

• NDT TRAINING CENTER IN CHENNAI - some liquid penetrant materials contain volatile solvents that can produce nausea; thus, adequate ventilation is necessary to remove noticeable vapors, especially in confined areas.

• NDT TRAINING CENTER IN CHENNAI - liquid penetrants, especially in aerosol form, are flammable. Inspectors must follow manufacture’s recommendations regarding necessary personnel protective equipment when using such equipment.

NDT TRAINING CENTER IN CHENNAI

MAGNETIC PARTICLE TESTING

NDT TRAINING CENTER IN CHENNAI - Magnetic particle testing (MT) is used to detect discontinuities in ferromagnetic parts – namely parts made of iron, steel, nickel, cobalt and the alloys of these materials. Ferromagnetic materials develop strong internal magnetic fields when an electric current is passed through the part. Magnetic particles are applied to the part and a discontinuity that causes a disruption in the induced magnetic field attracts the applied particles, producing an indication.

NDT TRAINING CENTER IN CHENNAI - MT is a highly effective inspection tool that is sensitive to the presence of cracks, laps, seams and similar types of surface and near-surface discontinuities.

NDT TRAINING CENTER IN CHENNAI - Non-relevant indications can sometimes be found near sharp transitions in test part geometry and at metallurgical anomalies introduced during welding due to localized thermal shock, usually associated with the heat-affected zone near welds. Depending on the type of discontinuity and the direction expected, test parts should be examined in two orthogonal (perpendicular) directions because discontinuities must have a major dimension perpendicular to the magnetic field lines of force in order to be detected.

ADVANTAGES

Magnetic particle testing offers the following advantages:

• NDT - low-cost, reliable method for locating surface cracks in ferromagnetic materials.

• NDT - few limitations on size and shape of part.

• NDT - particle size and sensitivity can be adjusted.

• NDT - particles may be in colour or made to fluoresce under ultraviolet radiation.

• NDT - portable if required for field use.

• NDT - can use permanent magnets if no electrical power is available.

• NDT - can use 12 V power sources (car batteries).

• NDT - fairly fast and simple application process.

• NDT - visual interpretation of indications.

• NDT - can detect subsurface discontinuities in some conditions.

DISADVANTAGES

Disadvantages of magnetic particle testing include the following:

• NDT - can be used only on ferromagnetic materials.

• NDT - large electrical currents are required for certain test applications.

• NDT - magnetic field must be properly orientated.

• NDT - correct selection and process of application of particles can severely limit sensitivity.

• NDT - too much current is often used, masking discontinuities with spurious indications.

• NDT - false indications often occur in transition areas.

• NDT - burning of parts can occur at contact points, damaging heat treatment and, in severe cases, destroying the part.

• NDT - skin burn may occur from suspension oils.

• NDT - some fire risks occur when using open tanks and oil-suspended particles.

NDT TRAINING CENTER IN CHENNAI

ULTRASONIC TESTING

Ultrasonic testing (UT) is used in the testing of nearly all solid materials, such as fine-grained aluminum, steels and alloys, composites and plastics – practically any solid material where detection of internal discontinuities or thickness measurements are of most common concern.

It is also used in the detection of inter laminar separations and regions that have been improperly processed or damaged in layered composite structures.

This technique is less effective with highly in homogeneous and coarse- grained materials (such as concrete and stainless steel castings) and non- elastic materials (such as rubber and soft plastics) that tend to absorb or scatter ultrasonic energy at relatively short distances.

This form of testing has become a commonly accepted approach to wall thickness measurement when access is limited to one side of the material. It is used in the detection and sizing of internal reflectors of ultrasonic pulses and thus is found in the testing of welds, forgings and raw materials in the form of plate, rod, pipe and similar simple geometrical shapes.

ADVANTAGES

Advantages of ultrasonic testing include:

• NDT - high sensitivity to the discontinuities that are most critical to structural integrity. For example, lack of fusion and incomplete penetration in welds are commonly detected. Also, cracks in both welds and bulk material are often very easy to detect.

• NDT - highly portable equipment, which is well suited to field inspection and inspection of in-service structures.

• NDT -application to a broad range of materials.

• NDT -in many cases, the ability to inspect very thick material, as well as the ability to detect discontinuities as small as 0.4 mm (0.016 in.) in diameter.

• NDT -in general access to only one surface is required.

• NDT -results are generated instantly with little or no processing time.

DISADVANTAGES

• Ultrasonic testing has several disadvantages and limitations. It should be noted that:

• inspection of complex shapes is very difficult.

• interpretations of UT indications require a high degree of operator training, experience and skill.

• there is a lack of definitive sizing capability, especially for diffuse discontinuities such as porosity or stress-corrosion cracking.

• discontinuities must be favorably orientated with respect to an accessible scan surface.

• a couplant, typically a liquid, must be placed on the scan surface in order for the sound to enter the part.

• typically no permanent record, comparable to a radiograph, is produced.

NDT COURSE IN CHENNAI

RADIOGRAPHIC TESTING

Inspection techniques using radiographic testing (RT) are some of the most common approaches to visualizing the internal structures of components, materials and assemblies. The approach requires a source of electromagnetic radiation that can penetrate the item being examined during exposure (the time the item is illuminated by the radiation).

Applications for RT are found throughout manufacturing and field-service environments. Raw materials are examined for the presence of internal discontinuities (castings, forgings); fabrications and assemblies are examined for induced discontinuities (welds) and misalignments or absence of internal parts; and inservice inspections use RT for detecting and assessing time-dependant degradation, such as corrosion, cracking and environmental damage.

ADVANTAGES

Radiographic testing provides the following advantages:

• NDT - can easily locate internal structural discontinuities using visual comparison with known geometric features of the test object.

• NDT - is applicable to most classes of materials.

• NDT - is considered by many to be the most universal approach to volumetric examination.

• NDT - yields a visual rendition of internal voids and fabrication errors that is readily interpretable.

• NDT -provides a permanent record of the inspection, including evidence of the sensitivity of the test when the image quality indicators (IQIs) are used.

• NDT - is capable of detecting local changes in thickness and density on the order of 1%, as measured along the line of sight of the X-ray beam.

• NDT - can provide a digital record of the test object for subsequent display on a computer monitor. DISADVANTAGES

Some disadvantages and limitations of radiographic testing include the following:

• NDT - it is a relatively expensive method of nondestructive testing.

• NDT - it is impractical to use on specimens of complex geometry.

• NDT - isolated local discontinuities, with in-line dimensions much less than 2% of the total thickness, are usually not detected.

• NDT - the specimen must lend itself to two-sided accessibility.

• NDT - laminar type discontinuities are often undetected by radiography because they are aligned transverse to the path of radiation.

• NDT - it requires highly trained and skilled personnel.

• NDT - operating licenses issued by state and federal agencies are required.

NDT TRAINING CENTER IN CHENNAI SCHOOL IN CHENNAI

EDDY CURRENT TECHNIQUE

NDT COURSE IN CHENNAI One of the more widely practiced ET techniques is eddy current testing. The flow of eddy currents is affected by fissures, constrictions or other discontinuities that cause distortions in the cross section through which the current is made to flow. Thus, the eddy current technique is useful for detecting the wall thickness of thin materials as well as measuring localized discontinuities. The thickness of the part must be within the depth of penetration (referred to as the skin depth) of the eddy currents and is dependent upon material properties and operating frequency. It is usually less than 0.635 cm (0.25 in.) and may be very much less, particularly for ferromagnetic materials.

ADVANTAGES

• NDT - Advantages of eddy current testing include the following:

• NDT - provides instantaneous results.

• NDT - uses portable equipment that may be readily adapted to automation.

• NDT - causes no damage to the material.

• NDT - presents no health hazards to the technician.

• NDT - is intrinsically safe as a testing tool, requiring only the coupling of an alternating magnetic field with the component under test to provide the interrogatory medium.

DISADVANTAGES

• NDT - Eddy current testing is affected by the following limitations:

• NDT - testing is limited to those metals and carbon fiber composites that are conductors of electrical currents.

• NDT - when the test part is composed of a ferromagnetic material, the depth of penetration into the material is vastly reduced.

• NDT - although discontinuities perpendicular to the surface being scanned are readily detected, discontinuities parallel to the surface, such as laminations, are generally not detected.

• NDT - in ferromagnetic materials, conditions such as work hardening and heat treating tend to introduce large variations in detected signals and may obscure the responses of most interest.

• NDT - Through the use of magnetic saturation techniques, however, many of these kinds of limitations can be removed.

NDT TRAINING CENTER IN CHENNAI AND INSPECTION TECHNOLOGY LIMITED.,

VISUAL TESTING

Throughout manufacturing and field inspection, visual testing (VT) is the most widely used NDT method.

The presence of a multitude of potential problem areas can be identified by knowledgeable observers, assisted by devices that magnify, qualify or quantify the conditions being evaluated.

WELCOME TO OUR NDT TRAINING CENTER IN CHENNAI

Course content

Theory

Introduction

Principles of Magnetic Particle Testing

Electrically induced magnetic fields

Magnetizing current characteristics

Magnetic field distribution in and around magnetic and nonmagnetic conductors

Current requirements

Magnetic particle equipment

Magnetic particle applications

Classifications of Discontinuities

Test Procedures and Standards

Practical

Selection and Calibration of Equipment

Compilation of Work Instructions and Technique Sheets in accordance with predetermined Standards

Perform Visible and Fluorescent Tests

Perform Magnetic Particle Testing on Welds, Castings and Forgings

Complete Report Forms

Interpretation and Evaluation of findings in accordance with multiple Specifications

Examination

IN ORDER TO PASS THE EXAMINATION, THE CANDIDATE SHALL BE REQUIRED TO SCORE A MINIMUM AGGREGATE OF 80%.

Successful students will be able to:

Organise, select and calibrate the necessary equipment for a given application

Evaluate and advise on the possibilities and limitations of a testing method

Execute and supervise practical testing under workshop and field conditions

Record testing data and evaluate acceptability of results according to specific acceptance criteria

Compile a written instruction for approval that complies with a given code, standard or specification

Record testing data and evaluate acceptability of results according to codes, standards and specifications

(PT) Liquid Penetrant Testing (Level I & II, Combined Course)

Overview

This course usually marks the start in a NDT Career, as Liquid Penetrant Testing is one of the most versatile NDT Methods for finding surface breaking discontinuities in a wide range of different Materials.

Duration

Course - 7 Days (56 hours)

Examination - 1 Day (8 hours)

Outcome

Successful candidates shall be awarded with a Level II Qualification in accordance with ASNT standard ANSI/ASNT CP-105-2006 and ASNT recommended practice SNT-TC-1A.

Course content

Theory

Introduction

Liquid Penetrant Processing

Liquid Penetrant Testing Method

Liquid Penetrant Testing Equipment

Selection of Method

Interpretation and Evaluation

Liquid Penetrant Process Control

Test Procedures and Standards

Practical

Selection and Calibration of Equipment

Compilation of Work Instructions and Technique Sheets in accordance with predetermined Standards

Perform Visible and Fluorescent Tests

Perform Liquid Penetrant Testing on Welds, Castings and Forgings

Complete Report Forms

Interpretation and Evaluation of findings in accordance with multiple Specifications

Examination

IN ORDER TO PASS THE EXAMINATION, THE CANDIDATE SHALL BE REQUIRED TO SCORE A MINIMUM AGGREGATE OF 80%.

Successful students will be able to:

Organise and select the necessary equipment for a given application

Evaluate and advise on the possibilities and limitations of a testing method

Execute and supervise practical testing under workshop and field conditions

Compile a written instruction for approval that complies with given code, standard or specification

Record testing data and evaluate acceptability of results according to codes, standards and specifications

(WT) (UTM) Ultrasonic Wall Thickness Testing

Overview

This course usually marks the start in a NDT Career; Ultrasonic Wall Thickness Testing is one of the most widely used methods in establishing the wall thickness of a wide range of different Materials.

Duration

Course - 4 Days (32 hours)

Examination - 1 Day (8 hours)

Outcome

Successful candidates shall be awarded with a Level II (Limited) (A-Scan & Digital) Qualification in accordance with ASNT standard ANSI/ASNT CP-105-2006 and ASNT recommended practice SNT-TC-1A.

Course content

Theory

History of ultrasonics

Theory of ultrasound

Attenuation and reflection

Principle of thickness gauging

Transducers and couplants

A-Scan and digital thickness gauging

Sources of error

Applications

Reporting

Practical

Perform wall thickness measurements of samples using ultrasonic and other mechanical methods

Selection and Calibration of Equipment

Complete Report Forms

Examination

IN ORDER TO PASS THE EXAMINATION, THE CANDIDATE SHALL BE REQUIRED TO SCORE A MINIMUM AGGREGATE OF 80%.

Successful students will be able to:

Demonstrate capability of measuring wall thickness to within a specific tolerance

Recognise and correct problems encountered with wall thickness testing

Complete a detailed report and sketch

(RT I) Radiographic Testing Level I

Overview

Radiographic Testing is a more advanced NDT Method. This method is able to find subsurface discontinuities in a wide range of different materials.

Duration

Course - 10 Days (80 hours)

Examination - 2 Days (16 hours)

Outcome

Successful candidates shall be awarded with a Level I Qualification in accordance with ASNT standard ANSI/ASNT CP-105-2006 and ASNT recommended practice SNT-TC-1A.

Course content

Theory

Introduction and principles of radiography

Structure of the atom

X-ray and gamma ray equipment

Interaction of radiation with matter

Sensitivity, density and contrast

Radiographic screens, cassettes and exposure charts

Exposure techniques and discontinuities

Radiation hazards, measurement of radiation and protection from exposure

Regulatory requirements and safe use of radioactive material

Practical

Set up the equipment, expose a sample, develop the film and interpret the results

Examination

IN ORDER TO PASS THE EXAMINATION, THE CANDIDATE SHALL BE REQUIRED TO SCORE A MINIMUM AGGREGATE OF 80%.

Successful students will be able to:

Identify, recognise and select the correct equipment to perform radiographic exposure

Set up the equipment to conduct a radiographic exposure

Carry out the radiographic exposure

Maintain a darkroom and process a radiographic film

Determine density and sensitivity

Recognise and identify artefacts and defects on radiographs

Complete a standard report form NDT TRAINING CENTER IN CHENNAI

NON DESTRUCTIVE TESTING – NDT TRAINING CENTER IN CHENNAI can be used to:

Weeding out defective raw materials /components at the incoming stage itself instead of accepting and paying for it

Detect defects that may occur during the manufacturing process before spending time and money on further processing of the defective materials

Improve manufacturing techniques by inspecting the product during processing operations to maintain uniform quality and standard

Detecting discontinuities at final stages of manufacturing to improve product reliability and safety during operation

In-service inspection to detect service induced flaws

Ensure prevention of accidents and promote safety for workers and equipment during over hauling and maintenance Enhance the reputation of manufacturer as producer of quality products

Non-destructive testing is the branch of engineering concerned with all methods of detecting and evaluating flaws in materials. Flaws can affect the serviceability of the material or structure, so NDT is important in guaranteeing safe operation as well as in quality control and assessing plant life. The flaws may be cracks or inclusions in welds and castings, or variations in structural properties which can lead to loss of strength or failure in service.

Non-destructive testing is used for in-service inspection and for condition monitoring of operating plant. It is also used for measurement of components and spacings and for the measurement of physical properties such as hardness and internal stress.

The essential feature of NDT is that the test process itself produces no deleterious effects on the material or structure under test.

The subject of NDT has no clearly defined boundaries; it ranges from simple techniques such as visual examination of surfaces, through the well- established methods of radiography, ultrasonic testing, magnetic particle crack detection, to new and very specialised methods such as the measurement of Barkhausen noise and positron annihilation.

NDT methods can be adapted to automated production processes as well as to the inspection of localised problem areas.

NDT TRAINING CENTER IN CHENNAI - Ultrasonic Testing (UT)

It is a non-destructive testing (NDT) method in which beams of high frequency sound waves that are introduced into the material being tested are used to detect surface and sub-surface flaws. The sound waves travel through the materials with some attenuation of energy and are reflected at interfaces. The reflected beam is detected and analyzed to define the presence and location of flaws.

NDT TRAINING CENTER IN CHENNAI - Ultrasonic waves are almost completely reflected at metal gas interfaces. Partial reflection occurs at metal liquid or metal solid interfaces, with the specific percentage of reflected energy depending mainly on the ratios of certain properties of the matter on opposite sides of the interface.

Cracks, laminations, shrinkage, cavities, bursts, flakes, pores, bonding faults and other discontinuities that can act as metal-gas interfaces can be easily detected. Inclusions and other inhomogenities in the metal being inspected can also detected by causing partial reflection or scattering of the ultrasonic waves, or by producing some other detectable effect on the ultrasonic waves.

Most of the ultrasonic inspection instruments detect flaws by monitoring one or more of the following: Reflection of energy from metal-gas interfaces, metal-liquid interfaces or discontinuities within the metal itself

Time of transit of a sound wave through the test piece from the entrance point at the sending (transmitting) transducer to the exit point at the receiving transducer, and Attenuation of the beam of sound waves by absorption and scattering within the test piece.

Ultrasonic methods

Ultrasonic methods of NDT use beams of mechanical waves (vibrations) of short wavelength and high-frequency, transmitted from a small probe and detected by the same or other probes. Such mechanical waves can travel large distances in fine-grain metal, in the form of a divergent wave with progressive attenuation.

The frequency is in the range 0.1 to 20 MHz and the wavelength in the range 1 to 10 mm. The velocity depends on the material and is in the range 1000-6000 m/s.

The technique detects internal, hidden discontinuities that may be deep below the surface. Transducers and coupling wedges are available to generate waves of several types, including longitudinal, shear and surface waves. Applications range from thickness measurements of thin steel plate to internal testing of large turbine rotors.

Most non-porous, resilient materials used for structural purposes (steel, aluminium, titanium, magnesium and ceramics) can be penetrated. Even large cross-sections can be tested successfully for minute discontinuities.

Ultrasonic testing techniques are widely accepted for quality control and materials testing in many industries, including electric power generation, production of steel, aluminium and titanium, in the fabrication of airframes, jet engine manufacture and ship building.

Ultrasonic advanced methods

(TOFD, phased array etc)

There have been many developments and refinements to the fundamental ultrasonic technique to cater for improved performance and/or results.

For example, AUT refers to Automated Ultrasonic Testing. Although this is a generic term which relates to the computerised collection of ultrasonic data, the three letter acronym AUT is now used to refer specifically to the automated ultrasonic inspection of pipe girth welds. Such systems have two sets of ultrasonic probes scanned circumferentially on either side of the weld. The sets of probes are selected to provide coverage of specific zones of the weld and the fusion face.

Time-of-Flight Diffraction – TOFD – is an ultrasonic technique which measures the time of flight of a pulse as it travels from a transmitting probe to a receiving probe. Divergent beams are used and it is necessary to scan the TOFD probe pair over the flaw for the technique to function correctly.

What distinguishes the technique from a standard pitch-catch configuration is the D which stands for diffraction. The technique relies on the detection of the diffracted sound wave which is generated from both the top and bottom edges of a planar defect.

The time of arrival of the diffracted signals from the flaw tips is measured with respect to the probe firing time. Time measurement can be done to great accuracy. The combination of this accuracy and the fact that the scattering source is the flaw tip forms the basis of a highly accurate sizing technique.

Phased array is the name given to a special type of ultrasonic probe.

An array is a group of transmitters, receivers or transmitter/receivers, generally called array elements. When used as a transmitter, firing the elements at different times can lead to interference between the sound waves produced by each individual element. This interference can be both constructive (waves add together) and destructive (waves cancel).

It is this interference which gives the array probe its main advantage – the ability to change beam shape and angle depending upon the timing at which elements are fired. When an array is used as a receiver, the difference between the times at which a pulse arrives at each array element contains information about the location of the pulse source.

Ultrasonic thickness gauging

Because in ultrasonic pulse-echo testing the time of travel of the pulse to a reflector is measured and displayed, it is a very simple adaptation to use this measurement as a thickness gauge. Low-cost small hand-held instruments are available, and the usual read-out is a digital display rather than an oscilloscope screen. Such thickness gauges require either calibration or a knowledge of the ultrasonic velocity in the material under test.

Usually, pulsed beams of ultrasound are used and in the simplest instruments a single probe, hand-held, is placed on the specimen surface. An oscilloscope display with a time-base shows the time that it takes for an ultrasonic pulse to travel to a reflector (a flaw, the back surface, or other free surface) in terms of distance across the oscilloscope screen – the so-called A-scan display. The height of the reflected pulse is related to the flaw size as seen from the transmitter probe. The relationships of flaw size, flaw distance and flaw reflectivity are complex and considerable skill is required to interpret the display.

Complex multiprobe systems are also used with mechanical probe movement and digitisation of the signals, followed by computer storage; methods of computer interpretation are developing rapidly.

There are several forms of mechanical vibration, depending on the direction of particle movement in the wave motion, and so there are several forms of ultrasonic waves, the most widely used in NDT being compressional and transverse (shear) waves.

By suitable design of probe, ultrasonic beams can be introduced into solid material at almost any angle.

Compressional waves will also travel through liquids and a common technique is to immerse the specimen in a large tank and use a stand-off probe with a mechanised movement. With such equipment, alternative methods of displaying the signals are possible and a two-dimensional ultrasonic image can be produced (B- scan and C-scan displays).

Generally, a single probe acts as both transmitter and receiver, so that inspection can be done from one side only of the specimen. Large-grain materials such as austenitic steel welding, copper castings etc produce severe attenuation and scattering and are at present difficult to inspect with ultrasound, but large thicknesses of fine-grain material such as forged steel can be tested without difficulty.

Because the usual indication of a flaw is a pulse on an oscilloscope trace, flaws must be characterised and also sized. New techniques such as time-of-flight diffraction, TOFD, have been developed to assist this technique.

Ultrasonic attenuation and ultrasonic velocity measurements are used to study various material properties.

The use of ultrasonics for sizing flaws

Once flaws have been detected it is often desirable to determine their size. For flaws smaller than the ultrasonic beam width, a pseudo-sizing can be obtained by comparing the flaw signal amplitude with that of a reference reflector (flat-bottomed or side-drilled hole) at the same range. When the flaw size is greater than the ultrasonic beam width, conventional probe movement sizing techniques can often be used to provide an estimate of flaw size. The maximum amplitude technique uses a measure of the probe movement between the maximised signals from flaw extremities to size flaws. The 6 dB and 20 dB drop techniques use the reduction in the signal amplitude from the flaw as the probe passes over the edge of the flaw as an indicator of flaw dimensions. However, the interaction between the ultrasonic beam and flaw, depending as it does on flaw nature and orientation, limits the effectiveness of these techniques, when dealing with complex and mis-orientated flaws.

Techniques which make use of the diffracted signal from the flaw extremities to locate and size flaws are most effective in sizing planar flaws. The time-of-flight diffraction (TOFD) technique uses the ultrasonic transit time between probe(s) and flaw extremities to locate and size flaws. Flaw sizing accuracies of better than ±2 mm can be achieved with optimised techniques (see also Ultrasonic advanced methods).

NDT – NDT TRAINING CENTER IN CHENNAI - UT - Applicability

Ultrasonic testing or inspection (UT) is used for quality control and materials testing in all major industries. This includes Ultrasonic testing of castings, forgings, plates, extruded components, weld joints, electrical and electronic component manufacturing, production of steel, aluminum and titanium, fabrication of structures such as air frames, pressure vessels, ships, bridges, motor vehicles, machinery and jet engines. In service ultrasonic testing for preventive maintenance is used for detecting impending failure of rail road rolling stock axles, press columns, earth-moving equipment, mill rolls, mining equipment and other machines and compo nets. The flaws to be detected include voids, cracks, inclusions, pipe, laminations, bursts and flakes. They may be inherent in the raw materials, may result from fabrication and heat treatment, or may occur in service from fatigue, corrosion or other causes. Ultrasonic testing can also be used to measure thickness of metal sections during manufacturing and maintenance inspections.

NDT Limitations

Manual Ultrasonic Flaw detection requires careful attention by experienced technicians Extensive technical knowledge is required for the development of Ultrasonic testing procedures. Ultrasonic inspection procedure Parts that are rough, irregular in shape, very small or thin or not homogenous are difficult to be tested Discontinuities that are preset in a shallow layer immediately beneath the surface may not be detectable.

Couplants are needed to provide effective transfer of ultrasonic wave energy between transducers and parts being tested.

Reference standards are needed, both for calibrating the equipment and for characterizing flaws.

NDT TRAINING CENTER IN CHENNAI , CHENNAI,TAMIL NADU, INDIA

State of the Art Ultrasonic flaw detection equipments with built-in DGS curves, AVG, AWS flaw sizing techniques for weld inspections

Transducers suitable for critical inspections, most sensitive, high temperature and high attenuative materials inspection applications

NDT - T-K-Y joints testing experts

Experienced in house ASNT NDT Level III consultants and experts for providing techniques establishment, procedure preparation, approval and consultancy services

ASNT NDT Level III trainers for conducting in house or external NDT Level 1, 2 training and certification courses on Ultrasonic testing and other NDT inspection methods. Read more about Ultrasonic Testing Personnel Certifications.

Ultrasonic inspection professionals qualified and certified to Level I, II as per ASNT recommended practice SNT-TC-1A and IS:13805 by Indian Society for Nondestructive testing (ISNT) and are approved by leading third party inspection authorities.

Strong team of NDT professionals to provide ultrasonic inspection services across India

The scheme offers three levels of training and qualification:

Level I – NDT Level should be qualified to properly perform specific calibrations, specific NDT, and specific evaluation for acceptance or rejection determination according to written instruction and to record results under the supervision of Level II or III personnel.

Level II – NDT Level II should be qualified to set up and calibrate equipment, interpret and evaluate results with respect to applicable codes, standards, and specification and be able to organize and report the results of NDT. He is familiar with scope and limitation of the method he is qualified and responsible for on the job training of trainees and NDT Level I personnel.

Based on the requirements of qualification level and the applicable qualification standards.

NDT Examination

All NDT examinations (general, specific, and practical) will be conducted at MTL School of NDT Exam Centre. However, other exam centers can be appointed upon approval of MTL Qualification and Certification Department. To pass the exam, the trainee must achieve a grade of at least 70% in each exam and 80% in overall. Examination procedures comply with the requirements of the applicable qualification or certification standard.

NDT Certification

After passing the required examination, the trainee will receive a certificate indicating the name of trainee, qualification standard (ANSI/ASNT CP-189-2001 and ASNT/SNT-TC-1A), NDT method, level of qualification, technique, certificate number, date of issue, date of expiry.

Authorized signatories:

1. MTL Head of Qualification and Certification.

2. Current ASNT Level III Certificate Holder.All certificates must include the MTL Embossed Golden Stamp.Starting from the date of issue, the validity of the certificate shall be in compliance with the qualification standard.

Sales and Supply of Ultrasonic flaw detectors, probes, cables, calibration blocks and other accessories. Read more about sales of Ultrasonic equipments

Ultrasound is also widely used in medical diagnostics and Dr Francesco Simonetti in the NDT Group is investigating a range of potential new applications for the technology. X-ray mammography is currently regarded as the gold standard in breast cancer screening; however, its effectiveness is not satisfactory, especially in younger women. A mammogram reveals the presence of a mass thanks to the contrast between the high density of a cancer mass relative to that of the host tissue. In young women healthy breast tissue tends to be dense thus reducing the overall contrast and hence sensitivity. On the other hand, ultrasound can measure other forms of mechanical contrast which tend to be high also in young women. New imaging methods developed at Imperial have shown that modern ultrasound technology can be engineered in a highly accurate tomography modality that can achieve resolution comparable to X-ray CT but without ionizing radiation, thus paving the way for a new gold standard for the early detection of breast cancer.

Professor Cawley is the Lead Academic of the EPSRC-sponsored Research Centre for Non-Destructive Evaluation which was established at Imperial College London in 2003, in collaboration with a number of other academic institutions and industry partners. The Centre is an important link in the supply chain between academia and industry, successfully transferring technological advances arising from university research to their eventual practical application in industry. Sponsors and collaborators include Shell, BP, Petrobras, Los Alamos National Lab, and the Karmanos Cancer CENTER.

The training courses consist of several modules that cover each aspect of the NDT method. Training includes lectures, quizzes and practicals and is conducted in a class room environment as per SNT-TC-1A. Our training program places significant emphasis on practicals which we believe are very important for NDT students (this is why we do not offer any internet based NDT TRAINING CENTER IN CHENNAI programs). Our goal is to spend approximately half of the time on practicals for UT, MT, PT and ECT methods.

Training covers the three major areas required by SNT-TC-1A, CP-189 and NAS 410

GENERAL - Theory, Techniques, Applications

SPECIFIC - Procedures, Codes and Standards

PRACTICAL - Instrumentation, Calibrations, Evaluation, Flawed Specimens

Magnetic Particle Testing Training Level I and II

Liquid Penetrant Testing Training Level I and II

Ultrasonic Testing Training Level I

Ultrasonic Testing Training Level II

Eddy Current Testing Training Level I

Eddy Current Testing Training Level II

Radiography Testing II Limited Film Interpretaion

Visual and Optical Testing Training Level I and II

Intro to NDT (PT, MT, RT, UT, ET and VT)

Phased Array Level II*

Time of Flight Diffraction (TOFD)

*The second week of PAUT Level II class also includes training on UT in lieu of RT

NDT TRAINING CENTER IN CHENNAI - NDT - Magnetic Particle Testing (MPT/MT)

Magnetic particle testing or MPT is a nondestructive testing method for locating surface and near surface discontinuities in ferromagnetic materials. It depends for its operation on the fact that when the material or part under test is magnetized, discontinuities that lie in a cause leakage field to the direction of the magnetic field will cause a leakage field to be formed at and above the surface of the part. The presence of this leakage field, and therefore the presence of the discontinuity, is detected by the use of finely divided ferromagnetic particle applied over the surface, some of the particle being gathered and held by the leakage field. This magnetically held collection of particle forms an outline of the discontinuity and generally indicates its location, size, shape and extent. Magnetic particles are applied over a surface as dry particles, or as wet particle in a liquid.

Ferromagnetic materials include most of the iron, nickel and cobalt alloys. These materials lose their ferromagnetic properties above a characteristic temperature called the Curie point which is approximately 76 degree C for most of the ferromagnetic material.

NDT – MPI Applications

The principal industrial uses of magnetic article testing are final inspection, receiving inspection, in process inspection and quality control, maintenance and overhaul in the transportation industries, plant and machinery maintenance and inspection of large components.

NDT – MPI Limitations

Thin coatings of paint and other non-magnetic coverings, such as plating; adversely affect sensitivity of magnetic particle inspection. Other limitations are:

Magnetic particle inspection methods will work only on ferromagnetic materials.

For best results, the magnetic field must be in a direction that will intercept the principle plane of the discontinuity. Sometimes this requires two or more sequential inspections. With different magnetizations.

Demagnetization following magnetic particle testing is often necessary.

Post cleaning to remove remnants of the magnetic particle clinging to the surface may be required after testing and demagnetization.

Exceedingly large currents sometimes are required for very large parts.

Care is necessary to avoid local heating and burning of finished parts or surface at the points of electric contact.

Although magnetic particle indications are easily seen, experience and skill in interpreting their significance are needed.

Magnetic particle inspection facilities at 'NDT TRAINING CENTER IN CHENNAI & INSPECTION TECHNOLOGY LTD.,Chennai, Tamil Nadu, India.

Specialized magnetic particle inspection equipments for NDT applications

Modern high amperage magnetic particle testing equipments including electromagnetic yokes

Powerful mobile type of prod equipments

6000 amperes stationery wet horizontal type equipments for inspection of mass production components, coils, and solenoids, central conductors with AC, HWDC and FWDC facilities.

High intensity black light kits for fluorescent inspection and demagnetizing equipments Magnetic particle testing professionals are qualified and certified to MT Level I, II as per ASNT recommended practice SNT-TC-1A, IS:13805 certified by Indian Society for Nondestructive testing (ISNT) and are approved by leading third party inspection authorities

Experienced in house ASNT NDT Level III consultants and experts for providing techniques establishment, procedure preparation, approval and consultancy services.

ASNT NDT Level III trainers for conducting in house or external NDT Level 1, 2 training and certification courses on Magnetic particle testing and other NDT inspection methods. Read more about Magnetic Particle Testing personnel Certifications.

Strong team of NDT professionals to provide magnetic particle testing services across India

Magnetic particle inspection (MPI)

This method is used for the detection of surface and near-surface flaws in ferromagnetic materials and is primarily used for crack detection. The specimen is magnetised either locally or overall, and if the material is sound the magnetic flux is predominantly inside the material. If, however, there is a surface-breaking flaw, the magnetic field is distorted, causing local magnetic flux leakage around the flaw. This leakage flux is displayed by covering the surface with very fine iron particles applied either dry or suspended in a liquid. The particles accumulate at the regions of flux leakage, producing a build-up which can be seen visually even when the crack opening is very narrow. Thus, a crack is indicated as a line of iron powder particles on the surface.

The method is applicable to all metals which can be strongly magnetised – ferritic steels and irons, but not generally austenitic steels.

The method of magnetisation must produce a magnetic field with lines of force at a large angle to the expected direction of the cracks to be detected, so that it is usual to apply the magnetisation more than once in different directions, for example in two directions mutually at right-angles, but methods of swinging the field direction during magnetisation are available.

The magnetisation may be produced by any of the following methods:

a) applying a permanent or electro-magnet to the surface (magnetic flow)

b) passing a large current through the specimen, or locally by means of current prods (current flow)

c) putting the specimen inside a current-carrying coil, or forming a coil around the specimen

d) making the specimen the secondary loop of a transformer – (induced current) – suitable for ring-shaped specimens

e) placing a current-carrying coil or loop close to the specimen surface

f) threading a current-carrying bar through a hollow specimen.

The electric current used may be DC or AC of any waveform, but the current required to produce adequate magnetisation depends on the waveform of the supply, the magnetisation method used, and the material of the specimen. It is most important to ensure that the current used is correct for the specimen size and shape and also that the direction of the magnetic flux produced is suitable for the cracks expected.

By using a combination of two magnetic fields, a swinging or rotating magnetic flux can be produced, which will detect a crack in any orientation.

Usually the iron particles – dry powder or suspended in a liquid (magnetic ink) – are applied while the magnetising current is still flowing, but residual magnetisation is sometimes used, when the particles are applied after magnetisation. Some steels retain sufficient magnetisation for this method to be satisfactory, and in this case smaller, more portable, magnetising equipment can be used. Magnetic inks (particles suspended in a liquid) are used more widely than dry powders. They are applied by low-pressure spray, dipping or brushing; it is important to use plenty of ink and to allow time for the particles to flow over the surface and migrate to any cracks. On dark surfaces a very thin layer of white paint can be applied to give a higher contrast indication.

Fluorescent particles, which require UV-A illumination, are widely used and coloured particles are also available. The indications of cracks can be preserved by photography or by the use of peel-off transparent adhesive film. MPI methods can be applied to relatively rough and dirty surfaces, but the flaw sensitivity may be impaired. Magnetic methods for underwater applications have been developed. Only under very special conditions can sub-surface flaws be detected by MPI.

Sales and Supply of magnetic particle inspection (MPI), powders, consumables and other accessories. Read more about sales of Magnetic particle inspection equipments

Magnetic flux leakage methods

As with MPI, the ferromagnetic specimen is magnetised by one of the methods listed, and depending upon the level of induced flux density, magnetic flux leakage due to both near- and far-surface flaws is detected by the voltage induced in a detector coil or a Hall effect element, which is traversed over the surface of the specimen. Unlike MPI, the method is not limited to surface-breaking or near-surface flaws, but actually becomes increasingly sensitive to far-surface flaws with increasing levels of magnetisation. Also, the output from the detector can be amplified, filtered, digitised, etc and stored to produce automated inspection systems. The method is widely used on bar and tube stock with both rotating specimens and rotating probes. Multi-element and differential probes are also used, and inspection speeds can be very high. One technique, known as magnetography, utilises a special form of magnetic tape applied to the surface of a specimen during magnetisation, allowing flux leakage fields to be picked up and stored on the tape. The tape can then be removed from the specimen for processing and analysis of the signals.

The method is also finding increasing use in the petrochemical industries for providing high-speed inspections of storage tank floors, as well as carbon steel pipes. These systems utilise either permanent or electromagnets to provide localised near-magnetic saturation coupled with induction coil or Hall effect sensor arrays for detecting anomalous flux leakage caused by the presence of corrosion defects (both near and far surface). Many of these systems rely upon the use of an adjustable threshold or amplitude gate to provide the detection of corrosion in real-time, while some of the more advanced systems, through the use of both advanced electronics and signal processing are able to provide corrosion maps of inspected areas similar to the C-scan representation of ultrasonic data.

NDT TRAINING CENTER IN CHENNAI - Liquid Penetrant Testing or Dye Penetrant Inspection

Liquid or dye penetrant testing is a non –destructive method for finding discontinuities that are open to the surface of solid and essentially non- porous materials. Indications of flaws can be found regardless of the size, configuration, internal structure, or chemical composition of work piece being tested and regardless of flaw orientation. Liquid penetrant can seep into (and be drawn into) various types of minute surface openings (reportedly, as fine as 4micro inch in width) by capillary action. Because of this, the process is well suited for the detection of all types of surface cracks, laps, porosity, shrinkage areas, lamination and similar discontinuities in casting, forgings, welds and other product forms. Dye penetrant inspection is used extensively for the testing of wrought and cast products of ferrous and non-ferrous metals, powder metallurgy parts, and ceramics and glass objects.

In practice, the liquid penetrant inspection process is relatively simple. Equipment generally is simpler and less costly than that for most other NDT methods .When used on ferromagnetic steels, in some instances, the sensitivity of liquid penetrant test is better than that of magnetic particle testing.

NDT - Limitations

The major limitation of liquid penetrant testing is that, it can detect only imperfections that are open to the surface. Another factor that may inhibit the effectiveness of liquid penetrant testing is the surface roughness of the object being tested .Rough or porous surfaces are likely to produce false indication.

Liquid penetrant testing depends mainly on a liquid's effectively wetting the surface of a solid work piece of specimen, flowing over the migrating into cavities that are open to the surface. Closely related to wetting ability is the phenomenon of capillary rise or depression.

The liquid penetrant testing requires at least five steps:

Surface preparation.

Application of penetrant.

Removed of Excess penetrant.

Application of Developer.

Observation and Reporting.

Liquid dye Penetrant inspection facilities at 'NDT TRAINING CENTER IN CHENNAI & INSPECTION TECHNOLOGY LTD, Chennai, Tamil Nadu, India.

Specialized stationery type Liquid dye penetrant inspection equipments for NDT applications Modern testing equipments perfectly equipped with S2, S3 sensitivity penetrants and Water washable, post Emulsifiable penetrants for high sensitivity applications High intensity black light kits for fluorescent inspection and demagnetizing equipments Liquid penetrant testing professionals are qualified and certified to PT Level I, II as per ASNT recommended practice SNT-TC-1A and or IS:13805 certified by Indian Society for Nondestructive testing (ISNT) and are approved by leading third party inspection authorities Experienced in house ASNT NDT Level III consultants and experts for providing techniques establishment, procedure preparation, approval and consultancy services.

ASNT NDT Level III trainers for conducting in house or external NDT Level 1, 2 training and certification courses on Liquid dye penetrant testing and other NDT inspection methods. Read more about Liquid Penetrant Testing Personnel Certifications.

Strong team of NDT Level 2 certified professionals to provide Liquid Penetrant testing services across India Sales and Supply of Dye penetrant inspection (DPT), penetrants, cleaners, solvents, developers and other consumables and accessories. Read more about sales of Liquid Penetrant inspection chemicals and consumables

Liquid penetrant inspection

This is a simple low-cost method of detecting surface-breaking flaws such as cracks, laps, porosity, etc. To be detected, the flaw must reach the surface to be tested.

Penetrant testing is one step up from visual inspection and offers many advantages, such as speed, large-area coverage and cheapness.

It is usually a six-stage process:

a) surface cleaning (degreasing etc)

b) application of a penetrant liquid (dipping, spray, brush)

c) removal of excess penetrant (solvent, water)

d) application of developer

e) inspection of test surface (visual, television camera)

f) post-inspection cleaning (anti-corrosion solutions).

There are three major groups of penetrant process:

a) water-soluble

b) post-emulsifiable with water rinsing

c) solvent removable, the difference being in the method used to remove the excess penetrant.

In each of these three groups the penetrant solution can contain a dye to make the indication visible under white light, or a fluorescent material which fluoresces under suitable ultraviolet (UV-A) light.

The choice of technique for any specific application is based on:

a) the surface finish of the specimen

b) the compatibility of the materials with the specimen

c) the sensitivity required

d) the size, shape and accessibility of the area to be inspected

e) the ultimate use of the component.

Fluorescent penetrants are usually used when the maximum flaw sensitivity is required.

The principle of liquid penetrant testing is that the liquid penetrant is drawn into the surface-breaking crack by capillary action and excess surface penetrant is then removed; a developer (typically a dry powder) is then applied to the surface, to draw out the penetrant in the crack and produce a surface indication. Cracks as narrow as 150 nanometres can be detected. The indications produced are much broader than the actual flaw and are therefore more easily visible.

Liquid penetrant testing can be applied to any non-porous clean material, metallic or non-metallic, but is unsuitable for dirty or very rough surfaces. Surface cleaning is a vital part of the penetrant testing technique. The method can be manual, semi-automatic or fully automated. Penetrant inspection, continuous-operation production lines in which the specimens are cleaned, dipped, washed, dried, etc on a time cycle are common.

Recently, equipment to fully automate the visual inspection stage of the process, by robotic handling of the specimen on a programmed procedure with television camera viewing and pattern recognition to identify and recognise flaws, has been introduced. Television image enhancement processes can be included.

A special, very high sensitivity penetrant process, using radioactive tracers is sometimes used, but requires very stringent safety procedures.

NDT TRAINING CENTER IN CHENNAI – NDT - Radiographic testing (RT)

Radiographic testing is anon-destructive testing of components and assemblies that is based on differential absorption of penetrating radiation- either electromagnetic radiation of very short wave-lengths or particulate radiation by the part or test piece being tested. Because of differences in density and variations in thickness of the part, or differences in absorption characteristics caused by variation in composition, different portions of a test piece absorb different amounts of penetrating radiation. Unabsorbed radiation passing through the part can be recorded on film or photosensitive paper, viewed on a florescent screen or monitored by various types of electronic radiation detectors.

The term radiography testing usually implies a radiographic process that produces a permanent image on film or paper. Although in a broad sense it refers to all forms of radiographic testing. Neutron radiography refers to radiographic testing using a stream of neutrons rather than electromagnetic radiation.

NDT TRAINING CENTER IN CHENNAI – USES – NDT

Industrial Radiography inspection is used to detect features of a component or assembly that exhibit a difference in thickness or physical density as compared to surrounding material. Large differences are more easily detected than small ones. In general, radiography can detect only those features that have an appreciable thickness in direction parallel to the radiation beam. This means that the ability of the process to detect planar discontinuities such as cracks depends on proper orientation of the test piece during testing. Discontinuities such as voids and inclusions, which have measurable thickness in all directions, can be detected as long as they are not too small in relation to section thickness. In general, features that exhibit a 2% or more difference in absorption compared to the surrounding material can be detected. Radiography is more effective when the flaws are not planar.

NDT - Applicability

Radiographic testing is used extensively on castings and weldments. Radiography is well suited to the testing of semiconductor devices for cracks, broken wires, unsoldered connections, foreign material and misplaced components. Sensitivity of radiography to various types of flaws depends on many factors, including type of material, type of flaw and product form. Both ferrous alloys can be radio graphed, as can non-metallic materials and composites.

NDT - Limitations

Compared to other NDT methods, radiography is expensive. Relatively large capital costs and apace allocations are required for a radiographic laboratory. Field testing of thick sections is a time consuming process. High activity sources require heavy shielding for protection of personnel. Tight cracks in thick sections usually cannot be detected at all, even when properly oriented. Minute discontinuities such as inclusions in wrought material, flakes, micro- porosity and micro-fissures cannot be detected unless they are sufficiently segregated to yield a detectable gross effect. Laminations are impossible to detect with radiography, because of their unfavorable orientation. Laminations do not yield differences in absorption that enable laminated areas to be distinguished from limitation free areas.

It is well known that large doses of X-rays or gamma rays can damage skin and blood cells, can produce blindness and sterility, and in massive doses can cause severe disability or death. Protection of personnel not only those engaged in radiographic work but also those in the vicinity or radiographic testing is of major importance. Safety requirements impose both economic and operational constraints on the use of radiography for testing.

Radiography testing facilities at 'NDT TRAINING CENTER IN CHENNAI & INSPECTION TECHNOLOGY LTD' Chennai , TAMil Nadu , India. Iridium 192 gamma ray and X-rayinspection equipments Modern testing equipments perfectly equipped for high sensitivity applications Dark room for film processing and Film Interpretation facilities Radiography inspection personnel are qualified and certified to BARC RT Level I, II certified, RT Level I, II certified as per ASNT recommended practice SNT-TC-1A and or IS:13805 certified by Indian Society for Nondestructive testing (ISNT) and are approved by leading third party inspection authorities Experienced in house ASNT NDT Level III consultants and experts for providing techniques establishment, procedure preparation, approval and consultancy services.

ASNT NDT Level III trainers for conducting in house or external NDT Level 1, 2 training and certification courses on Radiography testing and other NDT inspection methods. Read more about Radiography Testing Personnel Certifications.

Strong team of NDT Level 2 certified professionals to provide Radiography or X-ray testing services across India Sales and Supply of RT consumables and accessories. Read more about sales of NDT Equipment and accessories

Radiography

including high-definition radiography, radiometry and X-ray tomography)

Radiography uses X-rays or gamma-rays to produce an image of an object on film. The image is usually natural-size. X-rays and gamma-rays are very short wavelength electromagnetic radiation which can pass through solid material, being partly absorbed during transmission. Thus, if an X-ray source is placed on one side of a specimen and a photographic film on the other side, an image is obtained on the film of the thickness variations in the specimen, whether these are surface or internal.

This is a well-established technique which gives a permanent record and is widely used to detect internal flaws in weldments and castings and to check for mis-constructions in assemblies.

The source of radiation is either an X-ray tube or a pellet of radioactive material emitting gamma-radiation. X-ray equipment is usually described by the electrical voltage across the X-ray tube: thus, 300 kV X-rays. The higher the voltage, the greater the penetrating power of the radiation; industrial X-ray equipment ranges from about 20 kV to 20 MV and the most powerful equipments can be used to radiograph up to 500 mm (20") steel.

Nearly all gamma-radiography is done with either cobalt-60 or iridium-192 sources; there are a few other radioactive isotopes suitable for gamma- radiography, for special applications.

To obtain images with good definition it is desirable to have small-diameter radiation sources and the effective source size of typical X-ray and gamma-ray sources is in the range 1 to 4 mm diameter. After the radiographic film has been exposed, it has to be photographically processed (develop, wash, fix, dry) and is then placed on an illuminated screen for visual interpretation of the image. X-rays and gamma-rays are dangerous and radiographic equipment must be used either inside a protective enclosure, or with appropriate barriers and warning signals, to ensure that there is no radiation hazard to personnel. Qualified staff must be employed.

Radiography on film is a relatively expensive NDT method, due to the cost of the film. The larger X-ray equipments (for thick specimens) are also costly and require costly protective enclosures. Gamma-ray sources are much less expensive and are widely used on site work because of their greater portability. Generally, exposure times in gamma radiography are much longer than with X-rays.

High-definition radiography

Special X-ray tubes have been developed in which the source of X-rays is much smaller than in a conventional tube. In microfocus X-ray tubes the source size may be as small as 10 micrometres and this permits projected, enlarged images to be obtained which are adequately sharp. Such X-ray tubes have a very low output of X-rays and this is a technique which has not yet been fully developed.

Radiometry

By using a collimated radiation detector to scan the specimen, in register with a suitable radiation source, a measure of the transmitted radiation can be obtained. Whilst the advantage of having a radiographic image is lost, there are nevertheless several advantages to be gained by using radiometric techniques:

a) The radiation source may be of much lower activity than a radiographic source for the same item, typically up to 6 orders of magnitude lower. Thus, it is potentially much less hazardous.

b) Gamma-ray sources are most frequently used being highly portable and of very stable radiation output (long-term decay factor apart).

c) In the testing of shielding for buildings and containers holding radioactive materials, radiometry yields directly quantitative data on shielding defects, which radiography does not do.

X-ray tomography

By measuring the X-ray absorption through a specimen in a large number of different directions, digitising and collecting the data, a computer programme can be used to calculate and display a new form of X-ray image. The image produced is as if a thin slice has been cut through the specimen along the plane of the X-ray beam and this slice then radiographed.

The usual method used in industrial X-ray tomography is to move the specimen transversely and rotationally in a series of steps across a fixed X-ray beam measuring the absorption at each position. The computer requirements are quite large, and for industrial applications this is still a new technique.

Dynamic radiography/radioscopy

Radiography and radioscopy can be applied to the study of objects in motion inside opaque casings, or other situations where the object is obscured from direct visual observation. These techniques can give valuable information to Design and Development Engineers on the performance of gas turbines, reciprocating engines, 2-phase flow and a wide range of transient phenomena. The radiation sources used may be constant potential or pulsed X-ray generators, gamma-ray and neutron sources. The recording medium may be X-ray film, cine film or video systems, the latter two in conjunction with X-ray image intensifiers.

The type of source used, and the image recording system, radiographic film, image intensifiers, cine film, video recording, will depend on the type of event that is required to be studied, and the thickness and density of the subject.

X-ray sources may be constant potential, (half-wave generators are of limited use); repetitively pulsed eg linear accelerators; or single pulse eg flash pulsers. Gamma-ray sources may be used where long-term movement caused by changes in stress or temperature are required to be measured.

Fast moving images may be recorded at very high frame rates using suitable cine cameras or high-speed video systems allowing slow-motion replay, or ‘frozen’ on X-ray film using flash pulser X-ray sources with pulse durations of 20 to 50 nanoseconds, when suitable synchronising systems are used.

Repetitively pulsed sources may be synchronised to cyclic rotational events, yielding techniques of strobo-radiography/radioscopy. Variable precession of the synch pulses enables examination of whirl and vibration amplitudes of rotating shafts or assemblies from differing angles, and slight variations in the frequency of the X-ray pulses can yield slow-motion presentations of high-speed events.

See also: Real-time radiography, radioscopy.

NDT TRAINING CENTER IN CHENNAI - Visual testing (VT)

Visual inspection is one of the most common and most powerful means of non-destructive testing. Visual testing requires adequate illumination of the test surface and proper eye-sight of the tester. To be most effective visual inspection does however, merit special attention because it requires training (knowledge of product and process, anticipated service conditions, acceptance criteria, record keeping, for example) and it has its own range of equipment and instrumentation. It is also a fact that all defects found by other NDT methods ultimately must be substantiated by visual inspection. VT can be classified as Direct visual testing, Remote visual testing and Translucent visual testing. The most common NDT methods MT and PT are indeed simply scientific ways of enhancing the indication to make it more visible. Often the equipment needed is simple for internal inspection, light lens systems such as bore scopes allow remote surfaces to be examined. More sophisticated devices of this nature using fibre optics permit the introduction of the device into very small access holes and channels. Most of these systems provide for the attachment of a camera to permit permanent recording.

NDT TRAINING CENTER IN CHENNAI - NDT material testing facility contains light meters, welding gauges, magnifiers, lenses, other measuring instruments and equipments for precise control of surface quality. Our NDT inspectors, engineers and technicians are qualified to NDT Level I, II as per written practice prepared according to ASNT recommended practice SNT-TC-1A and in-house ASNT NDT Level IIIs for providing inspection and consulting services.

Visual inspection

Visual inspection, with or without optical aids, is the original method of NDT. Many defects are surface-breaking and can be detected by careful direct visual inspection.

Optical aids include low-power magnifiers, microscopes, telescopes and also specialised devices such as boroscopes, endoscopes and other fibre-optic devices for the inspection of restricted access areas. These devices can also be used with television camera systems. Much of the success of visual inspection depends on the surface condition and the lighting arrangements. Surface preparation such as cleaning and etching is often used and also surface replicas can be taken for both macro- and microscopic examination. In-situ metallography is also possible.

High-speed visual inspection with automated output is used for the inspection of the surface of sheet material and television techniques may use enhanced image and pattern recognition methods. Remote photography of inaccessible surfaces, such as inside a radioactive environment, is also possible. High-speed cine is also used for studying fast events. Arrays of optical diodes can be used instead of television cameras.

NDT TRAINING CENTER IN CHENNAI - Training & Certification courses

The training CENTER is conducting the following courses and plans are on the anvil for adding more courses as well.

Training Schedules:

NDT TRAINING CENTER IN CHENNAI & INSPECTION TECHNOLOGY LTD conducts training for its various programmes, every month throughout the calendar year. Hence participants can join at their convenient time. For current training schedules at our CENTERs in India, visit our NDT TRAINING CENTER IN CHENNAI Schedules page

For additional information Contact Us. For recommended Qualification and experience requirements visit the Eligibility Criteria page

Why training at NDT TRAINING CENTER IN CHENNAI – NDT TRAINING CENTER IN CHENNAI & INSPECTION TECHNOLOGY LTD.,

NDT TRAINING CENTER IN CHENNAI & of INSPECTION Technology Ltd., is organizing all the five NDT courses seamlessly without break for the convenience of participants attending the courses from all over India and abroad.

NDT TRAINING CENTER IN CHENNAI is the best & CENTRAL GOVT. APPROVED LAB FOR NDT NABL ACCREDITED LAB IN CHENNAI, India providing excellent interactive training sessions for the candidates in India and abroad alike. Hope you will also be benefited by attending our professional training programmes and experience quality sessions. The CENTER's training programmes are rated as some of the best available in India and abroad as well You will experience NDT TRAINING CENTER IN CHENNAI sessions and practicals on latest state of art equipments with expert trainers having more than 09 Years experience in NDT, Materials science, Metallurgy, Welding technology to explain deeper aspects of NDT at affordable price.

NDT TRAINING CENTER IN CHENNAI provides placement assistance depending on your qualification, experience levels and proficiency after successful completion of training courses. Visit our Careers page The NDT TRAINING CENTER IN CHENNAI has latest and modern training centre equipped with audio, visual power point presentations,fully established NDT laboratory for complete practicals accommodation near by our the CENTER apartments & Hostel for pleasant and peaceful stay for participants from outstation at affordable cost

NDT TRAINING CENTER IN CHENNAI & Certification

NDT TRAINING CENTER IN CHENNAI - Training is in fact integration of human resources and technology. The technology transfer must consider how information, directions and instructions shall be translated in the minds of trainees. This will involve presenting basic principles, theory and contents of the training programmes in such a way that these may not only be easily understandable but trainees shall be able to adopt them. One of the fundamentals of training is that people learn better when they can connect what is taught to their own experience; therefore practical on-job training has gained importance in the training programmes. NDT TRAINING CENTER IN CHENNAI system for NDT & welding at NDT TRAINING CENTER IN CHENNAI NDT has been designed in such a way that theory is blended with on-job practical training.

NDT TRAINING CENTER IN CHENNAI of NDT personnel for industry requires

Selection of the inspection technique for revealing critical defects

Performance of test procedures at the required level of expertise

Management of equipment, personnel and materials to ensure consistent performance

Training and certification of personnel have been standardized. Both national and international standards give details of educational qualifications, training programmes and method of certification. According to these standards a person considered for certification in NDT shall have sufficient education and experience to ensure understanding of principles and procedures in each method.

In general, these personnel have been categorized into three levels

Level I – Certified to carry out the specific NDT test method

Level II- Certified to test and analyses as per relevant standards, codes, specifications

Level III- Certified to enhance and manage the test system

Strictly adhering to the quality systems, NDT TRAINING CENTER IN CHENNAI & INSPECTION TECHNOLOGY LTD.,is a leading professional CENTER in Chennai , India for its training and certification programs in NDT, QA/QC courses. The NDT CENTER is conducting regular and specialized NDT Level I, II training courses as per ASNT Recommended practice SNT-TC-1A and NDt programs. Training courses can also be designed and organized as per the specific requirements of the client.

The NDT TRAINING CENTER IN CHENNAI is committed to direct towards right performance of customer operations by human resource development. For assistance in maximizing quality production, reduction of crisis and lowering the prime cost of production with trained and certified in-house personnel, we encourage you to undergo the NDT TRAINING CENTER IN CHENNAI and certification courses. Our trainers have sound experience not only in NDT but material sciences and materials testing technologies as well. In addition, the training CENTER has highly qualified and well experienced faculty (more than 5 years) for training. Our faculty includes ASNT Level IIIs, metallurgists, T-K-Y joints testing experts. Introduction to welding & welding defects, welding inspector courses are taken Radiographic test film interpretation (RTFI) is taken care by certified NDT Level III with more than 5 years experience as RTFI.

Ultrasonic Testing (UT) Level-I

NDT TRAINING CENTER IN CHENNAI - Training course objective:

NDT TRAINING CENTER IN CHENNAI - provide a basic knowledge of UT to enable a participant to carryout tests according to an established procedure under the supervision of a level II or level III personnel. The course is especially designed to provide a sound theoretical knowledge and practical skill for UT required for a Level I (1) technician

UT Level I Responsibilities

To carryout operation as per written procedure/instruction from Level II personnel. He shall be able to set up the equipment, calibrate and carryout the tests, classify and report the results. He shall not be responsible for the choice of the test technique nor for assessment of the test results.

NDT - UT Level I Course outline

Properties of Sound Waves

Generation of Ultrasonic waves

Interaction of ultrasound with matter and boundaries

Types of Probes

Test Methods

Test Equipment

Instrumentation

Test Variables

Inspection procedures

Types of Discontinuities

NDT - UT Level I Practical training

Complete calibration of ultrasonic flaw detection equipment for various types of transducers, Discontinuity Detection, Locating the flaw and Size Estimation Techniques.

NDT - Ultrasonic Testing (UT) Level-II

NDT TRAINING CENTER IN CHENNAI - Training course objectives:

The course is intended to provide through grounding in the principle of Ultrasonic Testing-UT and fundamentals of material and process such that the trainee would be able to

Identify suitability of UT for the material and inspection technique

Develop techniques and procedures that can be followed by a Level I operator

Analyse the test result and document the same

Be familiar with codes, standards and specifications for UT to evaluate results of the tests

NDT - UT Level II Responsibilities

A certified UT Level II (2) personnel is qualified to

Select proper test technique, equipment and probes

Set up and calibrate the equipment

Perform testing and interpret the results as per applicable standards

Have knowledge of the scope and limitations of UT

Be familiar with production processes of the test material and knowledge of type and location of expected defects

To develop UT technique for testing a particular job

Prepare test report for i. Accept ii. Reject iii. Rework

Prepare written instruction for Level I

Guide and check test results of Level I operators

Responsible for care and maintenance of the NDT/UT equipment

NDT - UT Level II Course outline

Review of Level-I course

In-depth study of test Variables

Immersion Techniques

Principles of DGS/DAC Methods

Echo dynamics for Reflector Evaluation

Codes, standards and Procedures

Acceptance Standards

Evaluation of Test Equipment,

Manufacturing Process and Discontinuities

NDT - UT Level II Practical Training

Same as for Level 1 course + Interpretation, Evaluation of Indications using DGS/DAC. Evaluation Methods and Echo Dynamics, Beam Profile and Plotting

NDT TRAINING CENTER IN CHENNAI - Magnetic Particle Testing (MPT) Level-I

NDT - Training course objective:

To provide a basic Knowledge of MT to enable a participant to carry out tests according to a established procedure under supervision of a level II or III personnel. The course is especially designed to provide a sound theoretical knowledge and practical skill for MT required for a level I technician.

NDT - MT Level I Responsibilities

To carry out operations as per written procedure/instruction from level II personnel. He shall be able to set up equipment, calibrate and carry out tests, classify and report the results. He shall not be responsible for the choice of test technique nor for assessment of the test results.

NDT - MT Level I Course outline

Basic of Magnetism

Magnetisation Techniques

Inspection Mediums

Inspection Techniques

Indication Classification

Test Equipments and Accessories

Demagnetisation

Types of Discontinuities

NDT - MT Level I Practical Training

Yokes, Prods, Headshot, Central Conductor, Coil Techniques, Using dry, wet ordinary and wet fluorescent powders, Demagnetisation.

NDT - Magnetic Particle Testing (MPT) Level-II

NDT TRAINING CENTER IN CHENNAI course objectives

The course is intended to provide detailed instruction in theory and practice such that the personnel shall be able to

Identify suitability of MT for material and inspection procedure.

Develop inspection techniques and procedure that shall be followed by level I operator.

Analyse the test results.

NDT - MT Level II Responsibilities

NDT TRAINING CENTER IN CHENNAI To select proper test technique and equipment as per established procedure

To calibrate, set and carry out test or supervise testing by level I operator

Prepare test report for acceptance/rejection as per standard

Have knowledge of merits and limitations of MT and other common NDT methods

Prepare written procedure for level I operator

Responsible for care and maintenance of testing machines and accessories

NDT - MT Level II Course outline

Review of Level-I course

Selection of Techniques

Codes, standards and Procedures

Acceptance Standards

Manufacturing Process and Discontinuities

Interpretation of Indications

Preservation of Indications

Evaluation of Test Equipment

NDT - MT Level II Practical Training

Same as Level-I + Interpretation, evaluation and recording of test results.

NDT - Liquid (Dye) Penetrant Testing (DPT/PT) Level-I

NDT - Training Course objective:

NDT TRAINING CENTER IN CHENNAI - To provide basic knowledge of PT sufficient to enable a person to carry out tests in accordance with established procedures under the supervision of level II personnel.

NDT - PT Level I Responsibilities

To carry out operations according to written instructions, set up the equipment, carry out the test, record, classify, and report the results. The level I personnel shell be not responsible for choice of test method nor for assessment of test results.

NDT - PT Level I Course outline

Basics of Penetrant Testing

Penetrant Groups

Pre-cleaning Methods

Penetrant testing methods and techniques

Types of Developers

Inspection Procedures

Sensitivity & Resolution checking of test systems

Types of Discontinuities

NDT - PT Level I Practical training

Visible (Red) and Fluorescent Penetrants of various types of different surfaces use of dry, wet, solvent suspended developers.

NDT - Liquid (Dye) Penetrant Testing (LPT) Level-II

NDT TRAINING CENTER IN CHENNAI Course objectives

NDT TRAINING CENTER IN CHENNAI - To provide the personnel with full theoretical and practical knowledge of PT process and related standards.

NDT PT Level II Responsibilities

To perform and direct PT according to the established or recognized procedures, select test methods to be used, set up and calibrate equipment, interpret and evaluate result according to applicable standards. Develop PT techniques adopted to problems arising during testing, prepare written instructions, organize and report test results.

PT Level II Course outline

Review of Level-I course

Selection of Techniques

Manufacturing Process and Discontinuities

Interpretation of Indications

Preservation of Indications

Evaluation of Test Equipment

Penetrant materials quality control

Codes, standards and Procedures

NDT PT Level II Practical Training

Same as for Level I + Interpretation

NDT TRAINING CENTER IN CHENNAI - Radiographic Testing (RT) Level-I

NDT TRAINING CENTER IN CHENNAI Course objective

NDT TRAINING CENTER IN CHENNAI To provide a basic knowledge of RT to enable a participant to carryout tests according to an established procedure under the supervision of a level II or level III personnel. The course is especially designed to provide a sound theoretical knowledge and practical skill for RT required for a Level I technician

NDT RT Level I Responsibilities

NDT TRAINING CENTER IN CHENNAI - To carryout operation as per written procedure/instruction from Level II personnel. He shall be able to set up the carryout the tests as per established and approved RT procedures, classify, report the results and to follow safety norms. He shall not be responsible for the choice of the test technique nor for assessment of the test results.

NDT RT Level I Course outline

Nuclear Physics-Interaction of Radiation with Matter

Shielding, Radiation Detectors, Biological Effects

Radiation Protection, Basic Rules & Techniques

Sources of Radiation and their characteristics

Film Radiography

Film Processing

Inspection Techniques and Procedures

Sensitivity & Definition, I.Q.Is, Other Accessories

Types of Discontinuities

NDT RT Level I Practical training

Radiography of Castings and welds using X-ray and Gamma ray.

NDT Radiographic Testing (RT) Level-II

NDT TRAINING CENTER IN CHENNAI course objectives

The course is intended to provide through grounding in the principle of Radiographic Testing-RT and fundamentals of material and process such that the trainee would be able to

Identify suitability of RT for the material and inspection technique

Develop techniques and procedures that can be followed by a Level I operator

Analyse the test result and document the same

Be familiar with codes, standards and specifications for RT to evaluate results of the tests

Be conversant with all statutory and safety norms of the authorities under jurisdiction

NDT RT Level II Responsibilities

A certified RT Level 2 personnel is qualified to

Select proper test technique, equipment, films, IQI and other test parameters

Set up the equipment

Perform testing, Manually process film for high contrast and resolution and interpret the results as per applicable standards

Have knowledge of the scope and limitations of RT

Be familiar with production processes of the test material and knowledge of type and location of expected defects

Describe the operational steps in the radiography test method and understand the importance of each step

To develop RT technique for testing a particular job

Prepare test report for i. Accept ii. Reject iii. Rework

Prepare written instruction for Level I

Guide and check test results of Level I operators

Responsible for care and maintenance of the NDT/RT equipment

NDT RT Level II Course outline

Review of Level-I course

Non-conventional Radiography

Techniques in radiography

Codes, standards and Procedures

Acceptance Standards

Manufacturing processes and discontinuities

Interpretation of Radiographs

NDT RT Level II Practical training

Same as level-I + Interpretation, evaluation of Radiographs, recording of test results and preparation of test reports.

NDT - Radiographic Testing (RT) Level-I

NDT TRAINING CENTER IN CHENNAI Course objective

To provide a basic knowledge of RT to enable a participant to carryout tests according to an established procedure under the supervision of a level II or level III personnel. The course is especially designed to provide a sound theoretical knowledge and practical skill for RT required for a Level I technician

NDT RT Level I Responsibilities

NDT TRAINING CENTER IN CHENNAI - To carryout operation as per written procedure/instruction from Level II personnel. He shall be able to set up the carryout the tests as per established and approved RT procedures, classify, report the results and to follow safety norms. He shall not be responsible for the choice of the test technique nor for assessment of the test results.

NDT RT Level I Course outline

Nuclear Physics-Interaction of Radiation with Matter

Shielding, Radiation Detectors, Biological Effects

Radiation Protection, Basic Rules & Techniques

Sources of Radiation and their characteristics

Film Radiography

Film Processing

Inspection Techniques and Procedures

Sensitivity & Definition, I.Q.Is, Other Accessories

Types of Discontinuities

NDT RT Level I Practical training

Radiography of Castings and welds using X-ray and Gamma ray.

NDT Radiographic Testing (RT) Level-II

NDT TRAINING CENTER IN CHENNAI course objectives

The course is intended to provide through grounding in the principle of Radiographic Testing-RT and fundamentals of material and process such that the trainee would be able to

Identify suitability of RT for the material and inspection technique

Develop techniques and procedures that can be followed by a Level I operator

Analyse the test result and document the same

Be familiar with codes, standards and specifications for RT to evaluate results of the tests

Be conversant with all statutory and safety norms of the authorities under jurisdiction

NDT RT Level II Responsibilities

A certified RT Level 2 personnel is qualified to

Select proper test technique, equipment, films, IQI and other test parameters

Set up the equipment

Perform testing, Manually process film for high contrast and resolution and interpret the results as per applicable standards

Have knowledge of the scope and limitations of RT

Be familiar with production processes of the test material and knowledge of type and location of expected defects

Describe the operational steps in the radiography test method and understand the importance of each step

To develop RT technique for testing a particular job

Prepare test report for i. Accept ii. Reject iii. Rework

Prepare written instruction for Level I

Guide and check test results of Level I operators

Responsible for care and maintenance of the NDT/RT equipment

NDT RT Level II Course outline

Review of Level-I course

Non-conventional Radiography

Techniques in radiography

Codes, standards and Procedures

Acceptance Standards

Manufacturing processes and discontinuities

Interpretation of Radiographs

NDT RT Level II Practical training

Same as level-I + Interpretation, evaluation of Radiographs, recording of test results and preparation of test reports.

NDT Eddy Current Testing (ET) - Level I

NDT TRAINING CENTER IN CHENNAI Course objective:

This course prepares a candidate to conduct Eddy Current Inspection and

Perform specific calibrations

Specific NDT

Specific evaluations for Accept or Reject Determinations according to written Instructions

Recording results

NDT Level I Course outline

MANUFACTURING DISCONTINUITIES

Types of Discontinuities: Inherent, Processing and Service

Casting Discontinuities: Hot Tear, Cold Shut, Porosity, Shrinkage

Primary Processing Discontinuities including discontinuities in Rolling, Forging, Drawing, Extruding

Secondary Processing Discontinuities including discontinuities in Grinding, Heat Treating, Machining, Welding, Plating

Service Discontinuities:- Erosion, Wear, Fatigue, Corrosion, Creep

GENERAL KNOWLEDGE OF ET

Electrical Parameters

Resistance

Inductance

Impedance

Electromagnetism

Faradays Law

Lenzs Law

Eddy Current Theory

Generation of Eddy Currents

Impedance changes by Eddy Currents

Effect of change of impedance on instrumentation

Impedance Curves

Conductivity Curve

Lift Off Curve

Permeability

Types of Eddy Current Sensing Elements

Probes

Absolute

Differential

Lift-off

Theory of operation

Materials

Inspection of Non-Ferromagnetic Materials

Inspection of Ferromagnetic Materials

Special Probes

Lift Off Insensitive

Fastener Probes- Ring Probe

Calibration Standards

Conductivity Standards

EDM notch Surface Standards

Applications

Surface Inspection

Inspection of Airframes

Airframe Fastener Inspection

Turbine Blade Inspection

Inspection of Petrochemical Piping

ET Level I Practical training

Setting up the ET instruments, selection of frequency, calibration of equipments, testing various test samples, recoding results, preparing test reports

NDT Eddy Current Testing - Level II

NDT TRAINING CENTER IN CHENNAI course objectives

Describe the basic principles of the eddy current test method

List several applications of the eddy current test method

List the types of discontinuities detected with the eddy current test method

Describe the cause and effect of various types of discontinuities

Describe the operational steps in the eddy current test and understand the importance of each step following a written procedure

Interpret and evaluate the test results with respect to the applicable standards

Complete the required test reports, and prepare a clear and concise written instruction (Procedure)

Locate defects in various materials, components and structures with a high probability of detection

NDT Level II Course Outline

Electromagnetic Testing

Fundamentals

Electromagnetic field generation

Properties of eddy current

Effects of varying frequency

Phase discrimination

Sensors Electromagnetic testing

Basic types of equipment; types of read out

Reference standards

Applications and test result interpretation

Flaw detection

Conductivity and permeability sorting

Thickness gauging

Process control

NDT ET Level II Practical Training

Setting up the Instrument, Selection of Frequencies for Tube Inspection, Selection of Probe Size, Calibrations, Depth Curve, Data Acquisition, Test on Various Samples, Prepare test report

NDT Visual Training Level I & II

NDT TRAINING CENTER IN CHENNAI Course objective

Identifying various weld discontinuities

Understanding the relevant welding technology related to visual inspection

Understanding the need for documentation in welding

Familiarity with codes and standards related to inspection requirements

Carrying out inspection of parent materials and consumables

Perform visual inspection of welds, report on them and assess their compliance with specified acceptance criteria

Gaining sufficient knowledge to successfully complete the CSWIP 3.0 Visual Welding Inspector examinations.

NDT VT Course outline

Fundamentals of light and lighting

Physiology of vision

Fundamentals of Imaging

Visual Weld testing practices

Effect of fatigue

Fibre optic Bore scopes

Documentation of visual testing

Analysis of visual testing

NDT - VT Practical training

Light Intensity Measurements, Evaluating discontinuities in Cast, Rolled, Forged, Welded and inspection of engineering components

NDT - UT of TKY Joints

A certification course exclusively designed for acquiring proficiency to conduct Ultrasonic testing (UT) of critical T-K-Y weld joints during fabrication of structures and piping. The course is meant for in depth learning of special techniques suitable for directly applying to actual T-K-Y weld joints on field. NDT Level III Trainers with vast experience in inspection of specialized weld inspection applications will teach the subject. The program consists of PowerPoint presentations, in depth study about interpretation of applicable codes related to these types of joints, practical sessions and technical discussions to quickly bring the students for easy understanding the subject.

NDT - Course Outline

API-RP 2X (Tubular Connections)

Selection of probes

Construction of DAC

Evaluation of defects

Acceptance criteria

AWS D 1.1 (Non tubular connection Steel Structures)

Statically loaded

Cyclically loaded Structures.

Construction of weld cross section involving curvature using profile-gauge and other methods

Estimating change of angle, beam-path, surface distance for curved surfaces

Construction of a flaw locating rule for T K Y Weld Inspection

Applying acceptance criteria

Ultrasonic inspection report preparation

NDT PRACTICAL TRAINING

Sample Test Specimens containing T, K, Y welded joints

NDT TRAINING CENTER IN CHENNAI & INSPECTION TECHNOLOGY LTD., is organizing and conducting the above course at NDT & Welding courses training centers in Chennai,Tamil Nadu, in India. Contact us for more information about eligibility criteria and current schedules

NDT - Ultrasonic Thickness Testing - Level II

NDT TRAINING CENTER IN CHENNAI Course objective

To provide a basic knowledge of Ultrasonic to enable a participant to carryout thickness gauging tests according to an established procedure under the supervision of a level II or level III personnel. The course is especially designed to provide a sound theoretical knowledge and practical skill for carrying our Ultrasonic thickness testing required.

NDT Level II Responsibilities

NDT TRAINING CENTER IN CHENNAI - To carryout operation as per written procedure/instruction from Level II personnel. He shall be able to set up the equipment, calibrate and carryout the thickness tests, classify and report the results. He shall be responsible for the choice of the test technique and assessment of the test results.

NDT Course outline

Introduction

Ultrasonic Fundamentals

Ultrasonic Transducers - Construction and Operation

Longitudinal Waves

Interfaces

Effects of Reflector/Test Geometry

Pulse-Echo Test Set up

Couplants and Coupling Techniques

Ultrasonic Instrumentation

Thickness Measurement

Ultrasonic thickness test Level II Practical training

Ultrasonic thickness testing of pipes, tubes, hollow machined components, castings, plates and corroded parts

Radiographic Test Film Interpretation (RTFI) Course - Level II

Training course objective:

Understand the basic principles of the radiographic inspection procedure

Understand the radiographic film processing procedures

Recognize limitations in exposure quality

Understand potential causes of processing artifacts

Assess radiographic quality

Understand viewing condition requirements

Interpret radiographic codes and specifications

Write reports based on code requirements

Understand origins of defects

Locate and recognize radiographic images of defects with a high probability of detection

NDT Level II Course outline

Review Of The Radiographic Variables Related To Film Interpretation

Film

Radiographic Viewing

Radiographic Image Quality

Exposure Techniques

Discontinuities

Radiographic artifacts

Codes, Procedures, and Written Practices

Radiographic Report Forms

NDT - RTFI Level II Practical training

Calibrating and using densitometers, evaluating radiographs related to casting and welds

NDT - Basic NDT Course

NDT - Training course objective:

Understanding the basic principles of various NDT methods, fundamentals, discontinuities in different product forms, importance of NDT, applications, limitations of NDT methods and techniques and codes, standards and specifications related to non-destructive testing technology. Briefing NDT certification programs, levels, responsibilities of Level 1, 2 & 3.

NDT - Basic NDT Course outline

NDT General Knowledge

Manufacturing processes

Types Discontinuities associated with manufacturing processes

Basics of Visual Testing - Principles, Techniques, Applications, Limitations, Codes, standards and Specifications related to Visual Testing

Basics of Liquid Penetrant Testing: Principles, Techniques, Applications, Limitations, Codes, standards and Specifications related to Liquid Penetrant testing

Basics of Magnetic Particle Testing: Principles, Techniques, Applications, Limitations, Codes, standards and Specifications related to Magnetic Particle testing

Basics of Ultrasonic Testing: Principles, Techniques, Applications, Limitations, Codes, standards and Specifications related to Ultrasonic Testing

Basics of Radiographic Testing: Principles, Techniques, Applications, Limitations, Codes, standards and Specifications related to Radiography

NDT Facilities at NDT TRAINING CENTER IN CHENNAI - NDT, Chennai Tamil Nadu India,

Nondestructive testing (NDT) is vital for ensuring safety, quality and integrity of critical aerospace components, assemblies and structures during manufacturing and overhaul, maintenance inspections of aircrafts. Nondestructive testing using liquid/dye penetrant testing, magnetic particle testing, Ultrasonic inspection, Radiographic testing, X-ray inspection, Visual and Baroscopic inspection of aerospace components and structures is carried out during various stages of manufacturing and maintenance (overhaul) inspections based on criticality of the components and specific aircraft structural quality requirements.

NDT TRAINING CENTER IN CHENNAI MTL - is an ISO 9001:2008 certified NABL CENTRAL GOVT . Approved company in chennai , India. NDT testing facility is first of its kind in chennai, India equipped with modern custom designed equipments and facilities that meets international aerospace standards and specifications.

Over a decade, the facility is serving for inspecting large number of NDT components for various aircraft applications and OEMs, applying established and approved procedures. The company adheres to strict quality control in all NDT inspection practices as per ASTM, NAS, other International BS Standards and client specific NDT procedures to achieve optimum test results using ultramodern and well equipped state of art NDT facility at Chennai, in India.

NDT Facilities at NDT TRAINING CENTER IN CHENNAI, India

NDT iquid Penetrant testing/Dye penetrant inspection facility using Fluorescent, solvent removable, Water washable, Post Emulsifiable penetrant combinations with both S2, & S3 sensitivities that meets International standards and customer specifications. Calibrated and fully automatic Magnetic particle testing machines with headshot, coil, central conductor techniques. AC, HWDC and DC up to 6000A capacity modern MPI equipments and portable MPI machines for inspecting aerospace components as per ASTM E 1444 and other national and international aerospace standards.

Ultrasonic testing laboratory for aerospace components, structures inspection equipped with digital ultrasonic flaw detectors, transducers, calibration blocks, reference standards and accessories.

Radiography testing of casting and welds using Gamma ray and X-rays sources.

ASNT SNT TC 1A, NAS 410 Level 1, 2 certified professionals for performing all NDT inspections.

In house ASNT NDT Level III experts in Ultrasonic testing, magnetic particle testing, liquid penetrant testing, eddy current testing, radiography testing and visual inspection for consulting and coordinating all Aerospace NDT activities.

Training and certification of personnel to Level 1, 2 as per NAS 410 aerospace standard and ASNT SNT-TC-1A in UT, MT, ET, VT, RT & PT. Expert NDT Level 3 Consultation on establishment of NDT procedures and development of procedures for various aerospace components and applications.

NDT TRAINING CENTER IN CHENNAI Calender

NDT CENTER and Inspection Technology Ltd an internationally recognized CENTER for Nondestructive testing (NDT) Promoted by 'NDT TRAINING CENTER IN CHENNAI ' one of the leading NDT companies in India, the CENTER is conducting world class Level I, II Certification courses on

Ultrasonic testing(UT Level I, II),

Radiography Inspection (RT Level I, II),

Magnetic particle testing ((MT Level I, II),

Liquid/dye penetrant testing (PT Level I, II),

Visual testing (VT Level I, II),

Eddy current testing (ET Level I, II),

Radiographic film interpretation (RTFI Level I, II),

TKY Joints Ultrasonic Inspection,

Basics of Nondestructive testing,

Metallurgy for Non-metallurgists

and other custom tailor made training courses. Download complete Inspection and training services brochures here.

AWS-CWI, Other Welding Inspector Certification Courses welding inspector examination preparation courses are organized as well, frequently in tune with the current demand for welding inspection personnel. Contact us for the schedules on welding inspector courses in India.

Since more than a decade, the courses at 'NDT TRAINING CENTER IN CHENNAI' have become a benchmark in Nondestructive testing training in India and other countries. Immense response for these courses across the nations, wide recognition by employers for NDT TRAINING CENTER IN CHENNAI NDT certifications and international delegate participation encouraged us to announce the courses throughout the year to produce most competent NDT certified professionals. Read feedback and experience of participants with 'NDT CENTER AND INSPECTION TECHNOOGY LTD'.

Benefits with training at NDT TRAINING CENTER IN CHENNAI

Organizing all the five NDT certification courses (UT, MT, PT, RT, VT) consecutively without break for the convenience of Indian and international participants

Internationally recognized certification at affordable fee with regular training batches throughout the calendar year. Excellent study resource materials prepared by experienced NDT experts and much useful for practicing engineers for immediately applying to on field NDT applications

NDT TRAINING CENTER IN CHENNAI ' is one of the best CENTERs in India providing powerful interactive training sessions with both Indian and international participation and are rated as the excellent training courses Practical sessions on latest state of art equipments with eminent trainers having more than two decades of experience in NDT, Metallurgy and welding technologies

'NDT TRAINING CENTER IN CHENNAI' provides free on the job training and placement assistance depending on your qualification, experience levels and proficiency after successful completion of the certification courses.

The CENTER has latest and modern training centre equipped with Audio, visual power point presentations, Fully established NDT, Material testing laboratory, NDT facilities for complete practical sessions

. Accommodation Near by the CENTER area for pleasant and peaceful stay at affordable cost.

Personalized assistance and career guidance for participants.

Certification holders data base is maintained with web enabled system. Certified candidates can verify the certification validity status world wide at www.ndttrainingCENTER.in from any where any time

The CENTER is located at the core of near by - Ambattur Industrial Area' is well connected by road, rail and air. The CENTER is located at just 30 minutes drive from Chennai International Airport

Who We Are – NDT TRAINING CENTER IN CHENNAI ?

MTL NDT is an ISO 9001:2008 Certified & NABL Accreted Lab for NDT company in India for Nondestructive testing, Material testing, Third party inspection, Consulting services and Training & Certification in NDT and Welding Inspection related technologies to clients in manufacturing, processing, heat treatment, in-service inspection of nuclear, aerospace NDT, automobile, fabrication of structures, oil & gas exploration companies, petroleum refineries, cross country pipelines in India and abroad.

NDT TRAINING CENTER IN CHENNAI has established in 2004 by a core group of eminent NDT, Welding Inspection and Material testing professionals, Engineers and technologists with rich 15 plus years of experience with many industrial verticals. Operating from a well-equipped, gigantic, ultramodern purpose built Material Testing laboratory, NDT inspection facilities, state of art inspection and testing equipments, modern training center, 'METAL TESTING LAB' is centrally located at one of the Asia's largest industrial estates known as Ambattur Industrial Estate in Chennai , India.

Since its inception, the NDT & material testing company has been successfully serving its clients in India and abroad with high quality, cost effective and timely services. 'MTL NDT' is widely recognized and respected for its quality integrity services with technology driven resources.

NDT TRAINING CENTER IN CHENNAI, the Training and Human Resources Development (HRD) CENTER of 'NDT TRAINING CENTER IN CHENNAI', is organizing and conducting world class NDT level 1, 2, Welding inspector and other materials testing, inspection technology training and certification courses. The NDT TRAINING CENTER IN CHENNAI is recognized internationally for most experienced ASNT NDT Level III trainers, welding inspectors and material testing experts. Explore our training, certification and professional development offerings and discover a wealth of resources to help you to reach the quality targets. We have training schedules throughout the calendar year for the convenience of training delegates toenroll for courses well in advance and be sure to visit our training course calendar for India and other international training venues.

Sales & Supplies division of 'METAL TESTING LAB' is catering to needy customers and industries by supplying high quality NDT Equipments, Accessories and consumables that meet international codes, specifications and standards. Currently we sale and supply all types of NDT equipments, dye penetrant chemicals including penetrants, solvent cleaners, developers, stationery dye penetrant systems, fluorescent black light assemblies, magnetic particle testing equipments including yokes, high end machines for crack detection, powders, mpi accessories, Ultrasonic flaw detection equipments, probes, cables, calibration blocks and other NDT related and material testing lab equipments. Find more about our NDT equipments sales and supplies About NDT TRAINING CENTER IN CHENNAI

MTL - NDT is a Nondestructive testing (NDT), Material testing company founded in India, providing complete material testing solutions including NDT Inspection, metallurgical, welder qualification tests, mechanical testing, consultancy services to engineering industries and serving the entire world.

Experience Quality Services

The organization is established by a team of eminent metallurgical and mechanical engineering experts with more than 10 years of professional industrial experience with the prominent industries in power sector, pressure vessels, precision and heavy engineering sectors, pipe systems, storage tanks, process plants, castings, forgings, fabrication, sugar and cement industries, aerospace component manufacturing, material testing laboratories, consulting and NDT inspection companies.

The modern material testing laboratory is fully equipped with latest equipments, well experienced team of professionals for conducting materials testing, non-destructive testing in Ultrasonic testing, Magnetic particle testing, Liquid/dye penetrant testing, Visual testing, Radiographic testing, interpretation, Ultrasonic thickness gauging, Consultancy in NDT, metallurgy, welding, third party inspection services, training and certification services.

Sharing the expertise through training

With in-house ASNT NDT Level III trainers, our training center NDT TRAINING CENTER IN CHENNAI and Inspection Technology Ltd., is a place where our customers and participants can confidently rely on, for quality NDT TRAINING CENTER IN CHENNAI and certification and welding inspector courses. We are committed to driving the right behaviors in our customer's operations by our world class training and certification courses. Our programs are carefully designed to give engineers, quality inspectors and technicians the skills needed to excel in the field of NDT, welding and quality related technologies.

NDT TRAINING CENTER IN CHENNAI expand our location worldwide by being the premier NDT, material testing and related quality services provider with high industrial standards, professional services focusing on customer satisfaction. MTL NDT will distinguish itself as a leader in redefining excellence in training, certification, consulting, trading and other customized services that enhances customers delight.

To provide world class NDT, material testing, inspection, training, consulting and other quality services and solutions with high professional integrity and reliability using technology driven resources.

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NDT TRAINING CENTER IN CHENNAI ASNT LEVEL I II Courses are based heavily on practical exercises, which when combined with the recording, reporting and answering of quizzes, results in the understanding of a specific syllabus segment. Up front lecturing is reduced to a minimum and the emphasis is on training to the specific needs of the individuals.Exercises are regularly backed up by the tutor, and all teaching is reviewed by texts, standards and computer based learning where possible.

All our NDT TRAINING CENTER IN CHENNAI courses are accredited by the American CENTER of Non Destructive Testing (ASNT). We provide NDT TRAINING CENTER IN CHENNAI suitable for both NDT central certification, and also employer based certification to Levels 1, 2, and 3 to SNT-TC-1A, EN4179, EN473, ISO 9712 and NAS 410 programmes. Choose from a variety of NDT methods

NDT TRAINING CENTER IN CHENNAI is currently available at our Head Office NDT TRAINING CENTER IN CHENNAI, the Advances Manufacturing and industrial park in India. We also provide NDT onsite providing an opportunity to better suit a course to a company’s individual needs. Onsite NDT TRAINING CENTER IN CHENNAI has taken place in many locations in India.

To view detailed information about the NDT TRAINING CENTER IN CHENNAI courses we offer, select the method you require from the list. We can provide various NDT courses for each method, each suited to your particular requirements. The type of course you choose depends on how much experience you have, whether you have received NDT TRAINING CENTER IN CHENNAI Course previously or currently hold a certificate, and also what type of certification you are working towards.

"NDT TRAINING CENTER IN CHENNAI COURSE DETAILS - NDT THEORY METHODS"


1. ULTRASONIC TESTING – UT

2. MAGNETIC PARTICLE TESTING – MPT

3. LIQUID PENETRANT TESTING – LPT

4. RADIOGRAPHY TESTING – RT

5. EDDY CURRENT TESTING – ET

6. VISUAL TESTING – VT

7. ULTRASONIC THICKNESS GAUGING – UTG

8. RADIOGRAPHIC FILM INTERPRETATION – RI


"NDT TRAINING CENTER IN CHENNAI PRACTICAL METHODS :"


1. ULTRASONIC TESTING – UT

2. MAGNETIC PARTICLE TESTIN –MPT

3. PENETRANT TESTING – PT

4. RADIOGRAPHY TESTING – RT

5. VISUAL TESTING – VT

6. T-K-Y JOINTS UT

7. RADIOGRAHIC FILM INTERPRETATION – RI

8. ULTRASONIC THICKNESS GAUGING – UTG


NDT TRAINING CENTER IN CHENNAI & INSPECTION TECHNOLOGY LTD, Our main concern “METAL TESTING LAB” has established in 2004 by a CORE GROUP OF EMINENT METALLURGICAL LAB, NDT TRAINING CENTER IN CHENNAIS IN CHENNAI, NDT TRAINING CENTER & NDT INSPECTION, CALIBRATION TESTING , NDT TRAINING CENTER IN CHENNAI COURSE IN CHENNAI and Material testing professionals, Engineers and technologists with reach 7 plus years of experience with many industrial verticals. BEST NDT TRAINING CENTER IN CHENNAI,TAMIL NADU,INDIA.

NDT JOBS IN CHENNAI, NDT SCHOOL IN CHENNAI ,TAMIL NADU, INDIA & ABROAD.

NDT TRAINING CENTER IN CHENNAI & INSPECTION TECHNOLOGY LTD, organizing and conducting world class NDT LEVEL I, II COURSES, and other CALIBRATION LAB IN CHENNAI NDT TRAINING CENTER IN CHENNAI and CERTIFICATION COURSE. The NDT TRAINING CENTER IN CHENNAI is recognized internationally for most experienced ASNT NDT LEVEL III TRAINERS, & CENTRAL GOVERNMENT APPROVED - NABL ACCREDITED LAB FOR NDT IN INDIA and material testing experts. We have training schedules throughout the calendar year for the convenience of training delegates to enroll for courses well in advance and be sure to visit our NDT TRAINING CENTER IN CHENNAI COURSE CALENDER for Chennai, Tamil Nadu, India.

About Our NDT COURSE IN CHENNAI

Our NDT courses are based heavily on practical exercises, which when combined with the recording, reporting and answering of quizzes, results in the understanding of a specific syllabus segment. Up front lecturing is reduced to a minimum and the emphasis is on NDT TRAINING CENTER IN CHENNAI to the precise, specific needs of the individual. Exercises are regularly backed up by the tutor, and all teaching is reviewed by texts, standards and computer based learning where possible.

NDT TRAINING CENTER IN CHENNAI is currently available at our Head Office in Chennai, tamil Nadu , India. We also provide NDT TRAINING CENTER IN CHENNAI onsite providing an opportunity to better suit a course to a company's individual needs. Onsite NDT TRAINING CENTER IN CHENNAI has taken place in many locations both in the India and internationally.

To view detailed information about the NDT courses we offer, select the method you require from the list. We can provide various NDT TRAINING CENTER IN CHENNAI Courses for each method, each suited to your particular requirements. The type of NDT course you choose depends on how much experience you have, whether you have received NDT TRAINING CENTER IN CHENNAI previously or currently hold a certificate, and also what type of certification you are working towards.

More specialist NDT courses are available under some methods, for example Time of Flight Diffraction and Phased Array being specialist subjects within Ultrasonic Testing. Material Evaluation NDT courses include TKY Joints.

NDT EQUIPMENTS SALES & SUPPLIES of ‘LAB EQUIPMENTS PVT.LTD, is catering to needy customers and industries by supplying high quality NDT Equipments, Accessories and consumables that meet international codes, specifications and standards. Currently we sale and supply all types of NDT & METALLURGICAL EQUIPMENTS, DYE PENETRANT TESTING chemicals including penetrants, solvents cleaners, developers, stationery dye penetrant systems, fluorescents black light assemblies, MAGNETIC PARTICLE TESTING EQUIPMENTS including yokes, high end machines for crack detection, powders, MPI accessories, ULTRASONIC FLAW DETECTION EQUIPMENTS, probes, cables, calibration blocks and other NDT related and material testing lab equipments. Find more about our NDT EQUIPMENT SALES AND SUPPLIES visit Our Websites: www.metaltestininglab.co.in

CENTER OF NDT and Inspection Technology offer 100% job oriented courses with opportunities in India and abroad with attractive salary and high reputation. We are one of the leading training CENTERs in India with Service in the field of Non Destructive testing (NDT).

We provide high quality education and standard NDT ASNT LEVEL I II TRAINING .Adding in your dedication and commitment you will be able to secure a prospective career. Whether you are interested in a career in the field of non destructive testing or just want to learn more about the technology, then this is the NDT ACADEMY IN CHENNAI education program that will meet your needs.NDT SCHOOL IN CHENNAI and Inspection Technology’s NDT TRAINING CENTER IN CHENNAI and Testing services has been providing students focused education that integrates the best of theory and practical application.

NDT COURSE IN CHENNAI, NDT TRAINING CENTER IN CHENNAI

To become the most preferred Non destructive testing / Inspection / training CENTER by providing superior quality knowledge and satisfied course training designed to suit the professional needs of an individual trainee and also an individual organization.

NDT TRAINING CENTER IN CHENNAI , NDT TRAINING CENTER IN CHENNAIS IN CHENNAI

ASNT LEVEL I and II Training CENTER mould its trainees to become world class NDT Operators supervisors and technicians. This is obtained by theoretical knowledge, practical skills and work place attitudes which are essential to enter the profession of NDT / Inspection. Trainees are encouraged to be in touch with CENTER even after the course completion and consolidate the giants of training during the actual job performance.

NDT LEVEL I II CERTIFICATION COURSE

We are the leading training CENTER in chennai , Tamil nadu , India and abroad with service in the field of Non-destructive testing (NDT), destructive and piping engineers, pipeline and many more certification courses in the field of quality engineers and related industrial training CENTER in Chennai.

Non-Destructive Testing / NDT Courses in chennai

An introduction to the concepts of non-destructive testing - this course is intended for those wanting to achieve a basic understanding of the methods, techniques and role of non-destructive testing in the engineering, fabrication and construction industries.

Extensive hands on experience is available allowing basic tests to be performed. This course is ideal for beginners and can be orientated towards NDT Engineers , senior managers, consulting engineers, chief inspectors , NDt Inspectors and surveyors, as well as those directly involved in starting a career in non-destructive testing activities who require an initial general approach.

Course Content

The main methods of non-destructive testing with demonstrations (including magnetic particle testing, penetrant testing, ultrasonic flaw detection and Radiographic interpretation)

The limitations of each method of testing. Radiographic testing Certification schemes Relevant BS, EN and ISO standards/reference sources Reporting criteria. Special Notes This is an ideal course for personnel at all levels wanting an overview of common NDT techniques. NDT methods applicable : Radiographic Testing, Ultrasonic Testing, Magnetic Particle Testing, Penetrant Testing, Eddy Current testing Visual Testing. Radiographic Film interpretation Ultrasonic Thickness measurement

TRAINING | TESTING | CERTIFICATION | SALES | CONSULTANCY

Non-Destructive Training » Destructive Training » Chemical Analysis » Welding Inspection » Piping Engineering » Pipeline Engineering » Civil Structural Engineering » Process Engineering » Quality Controller » Cert. Quality Inspector » Elec. & Instrumental » Safety Engg. Courses » Metallurgical Courses » Workshop Training » Preparatory Classes » Codes & Interpretation

We are commonly involved to provide world class theoretical teaching, practical training and providing skill experience by well educated teachers; skills trained trainers and experienced Professionals because we believe in reality and facts. The certification is valid globally. All the leading inspection agencies and govt.bodies/public sector undertakings/ private or Organizations, recognizes the certificates issued by our CENTER.

NDT TRAINING CENTER IN CHENNAI MTL - We provide training for ASNT Level I and II for a range of methods. Choose from a variety of NDT methods, including Visual inspection, Penetrant inspection, Magnetic particle inspection, Radiographic inspection, Ultrasonic inspection, Eddy Current inspection and Material Evaluation. We supply to companies in a wide range of industrial sectors; Power, Nuclear, Shipping, Defence, Aerospace, Transport, Leisure, Pre-service, In-Service, Oil, Gas, Electricity and Pressure Vessels.

NDT TRAINING CENTER IN CHENNAI at NDT Consultants Training School, complete training, qualification and certification service for NDT personnel. This is carried out to the requirements of major aerospace companies, aerospace subcontractors, air carriers, overhaul companies, automotive and general engineering companies. Our training centre is staffed by fully qualified ASNT and NDTPCN Level III personnel all of whom have a wide range of industrial experience to compliment their qualifications. The NDT TRAINING CENTER IN CHENNAI courses cover the basic physical phenomena on which they rely together with extensive classroom teaching of the practical applications of the methods and an extensive amount of practical work in our well-equipped laboratory! The NDT courses are accredited by The British CENTER of NDT & Aerospace Prime Contractors including: Boeing, Honeywell, Rolls Royce, Indian Aerospace, Helicopter,

Preparing For Your NDT COURSE CERTIFICATION IN CHENNAI

It is important that all relevant parts relating to your application are completed. Please take great care to complete it fully. It may be that without completing the form fully we will not be able to accept your booking.

Please attend at 09.30. Courses close at 17.30. Lunch is taken at times suitable to the candidate from 12.30 – 13.30.

Eye Test – You are responsible for providing an Eye Test where applicable. PSL 44 is available for recording this information.

Please select which method you would like to view training information for:

EDDY CURRENT TESTING LIQUID PENETRANT TESTING MAGNETIC PARTICLE TESTING RADIOGRAPHIC TESTING ULTRASONIC TESTING PHASED ARRAY TESTING ULTRASONIC TOFD TESTING VISUAL TESTING Ultrasoning Thickness measurement Radiographic Film Interpretation Eddy Current Testing

NDT TRAINING CENTER IN CHENNAI Courses List (Level I and II Certification): Penetrant Inspection Magnetic Particle Inspection Ultrasonic Inspection Digital Radiography Eddy Current Inspection Thickness Inspection On Site Training

NDT Course Certification

NDT is a very important industry. It assures safety and quality in all engineering systems and structures. It is for this reason that correctly qualified personnel operate in the industry. To enforce this principle, the various NDT TRAINING CENTER IN CHENNAIs have developed certification schemes, enabling employers to ensure their staff are correctly trained to carry out non-destructive testing. Over several decades of development, we now have the current status of two fundamental types of personnel certification; employer based certification, and central certification.

NDT is a very important industry. It assures safety and quality in all engineering systems and structures. It is for this reason that correctly qualified personnel operate in the industry. To enforce this principle, the various NDT TRAINING CENTER IN CHENNAIs have developed certification schemes, enabling employers to ensure their staff are correctly trained to carry out non-destructive testing. Over several decades of development, we now have the current status of two fundamental types of personnel certification; employer based certification, and central certification.

About Non Destructive Testing

Non-Destructive Testing (NDT) is testing and evaluating materials, without causing damage or destruction to the material. For example, the testing of a mechanical component for flaws, without weakening the component, or rendering the component useless.

Non-Destructive Testing is used in a very wide range of industries (such as Aerospace, Energy, Power, Transport etc.) and job opportunities are virtually limitless.

A career in NDT is a dynamic career, where up-to-date training is a necessity. Qualification is very important for the NDT industry, as errors can have disastrous consequences; therefore an NDT operator can expect to have to refresh skills regularly, attending training courses and taking examinations. There is more to training however than refreshing things you already know. NDT is composed of a number of different disciplines (or 'methods'). Each discipline is a different branch of applied physics, used to perform non-destructive testing (e.g. ultrasonic, radiography, eddy current, magnetics...). This means a career in NDT should never stagnate, there is always the opportunity to diversify into a different method, or specialise in one method to an advanced level of competence. Exiting new developments are also being made in NDT such as advanced ultrasonic techniques (e.g. Time of Flight Diffraction and Phased Array).

There are three benchmark certification levels of competence in NDT, and this applies to every method. Level 1 is designed for the basic performing of practical techniques, and acquisition of data. Level 2 involves acquisition of and more detailed evaluation analysis of data. Level 3 addresses design of inspections, procedures, and data analysis.

NDT TRAINING CENTER IN CHENNAI offers training and certification on seven major NDT methods:

The training classes offered covers the syllabus as recommended by American Society for Non-Destructive Testing (ASNT) document ASNT-SNT-TC-1A. The training classes are offered based on the written practice framed in accordance with SNT-TC-1A. On successful completion of successful training and examination ASNT Level-I and Level-II certificates are rewarded. The certification bears an International recognition and the candidates are eligible to work on International projects, worldwide.

What Is Non destructive Testing - NDT

Nondestructive testing is, simply stated, exactly what its name implies - testing without destroying - to investigate the material integrity of the test object. More specifically, a nondestructive test is an examination of an object, material or system in any manner, which will not impair its future usefulness.

The purpose of the test may be to detect internal or external flaws, to measure geometric characteristics, to determine material structure or composition or to measure or detect some of the material's properties. A number of other technologies - for instance, radio astronomy, voltage and amperage measurement and rheometry (flow measurement) - are nondestructive but are not used to evaluate material properties specifically. Nondestructive testing is concerned in a practical way with the performance of the test piece - how long may the piece be used and when does it need to be checked again?

Since the 1920s, nondestructive testing has developed from a laboratory curiosity to an indispensable tool of production. No longer is visual examination the principal means of determining quality. Nondestructive tests in great variety are in worldwide use to detect variations in structure, minute changes in surface finish, the presence of cracks or other physical discontinuities, to measure the thickness of materials and coatings and to determine other characteristics of industrial products. Manufacturers use modern nondestructive tests to:

Ensure product integrity, and in turn, reliability Avoid failures, prevent accidents and save human life Make a profit for the user Ensure customer satisfaction and maintain the manufacturer's reputation Aid in better product design Control manufacturing processes Lower manufacturing costs Maintain uniform quality level Ascertain operational readiness

Ensuring the Integrity and Reliability of a Product - Ensuring product reliability is necessary because of the general increase in performance expectancy of the public. A homeowner expects the refrigerator to remain in uninterrupted service, indefinitely protecting the food investment, or the power lawnmower to start with one pull of the rope and to keep cutting grass for years on end. The manufacturer expects the lathe, punch press or forklift to stand up for years of continuous work even under severe loads.

Preventing Accidents and Saving Lives - But reliability merely for convenience and profit is not enough. Reliability to protect human lives is a valuable end in itself. The railroad axle must not fail at high speed. The front spindle of the intercity bus must not break on the curve. The aircraft landing gear must not collapse on touchdown. The mine hoist cable must not snap with people in the cab. Such critical failures are rare indeed. And this is most certainly not the result of mere good luck. In large part it is the direct result of the extensive use of nondestructive testing and of the high order of nondestructive testing ability now available.