NDT Training

Non Destructive Testing (NDT) :

Non-Destructive Testing (NDT) is testing and evaluating materials, without casusing 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...) and job opportunities are virtually limitless.

A career in NDT is a dynamic career, where up-to-date NDT 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 NDT training courses and taking examinations. There is more to NDT training however than refreshing things you already know. NDT is composed of a great number of different disciplines (or 'methods'). Each discipline is a different branch of applied physics, used to perform non-destructive testing (e.g. ultrasonic’s, radiography, magnetic...). 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’s techniques.

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 analysis of data. Level 3 addresses design of inspections, procedures, and data analysis.

Existing Qualifications :

The great advantage of NDT Training is that, as previously mentioned - due to the importance of properly trained personnel, NDT certification is a large part of the industry. Once an operator is a certified NDT engineer, he/she is adequately qualified for the NDT industry.

There are no prerequisites to studying for NDT certification, so in answer to the above question, no existing qualifications are necessary to start a career in NDT!

As NDT is applied physics, it is an obvious advantage when training as an operator if a basic scientific education has been obtained (e.g. 10th STD or 12th STD Physics). However, this is not a requirement, and many NDT operators do not initially possess scientific qualifications. A basic understanding of mathematics and for more advanced equipment - basic computer skills are an advantage

Get Into The Industry :

There are essentially two entrances into the NDT industry, and these become apparent if you look at the components of NDT certification (remember that NDT Training certificate is the only requirement for a career in NDT).

NDT certification is composed of three components, NDT Training, Work Experience and Examination. A minimum number of hours of NDT training and work experience must be completed, and an examination must be passed to achieve certification. The work experience may be completed before the NDT training and examination or after.

Therefore the two entrances to the industry are:

  • Gain NDT training and pass examination, and then apply to gain experience as a trainee operator working alongside a qualified NDT inspector.
  • Gain experience as a trainee operator by shadowing a qualified NDT inspector, and then take the NDT training and pass examinations to gain certification.

The first method of starting a career in the NDT industry is much easier, as getting a job as a trainee NDT operator is likely to be easier if you can prove you have already had NDT training and passed examinations.

First Step :

For someone with no previous experience in the NDT industry, the best way to get involved is to book a NDT training and examination course in a basic method “NDT Level I and II”. Once the NDT training has been completed, and the examination passed, then work experience must be gained. Take a look at Kalkars NDT Training section to find out about all the different training courses available.

NDT Training :

Kalkars NDT Services (Madurai) offers 30days Nondestructive Testing and Quality Control training program as per our module. We are also providing corporate NDT training based on customer needs. Kalkars NDT Services provides the right combination of classroom and laboratory NDT training to support industry standards for Level I and Level II qualifications according to the guidance of SNT-TC-1A, in accordance with American Society for Nondestructive Testing (ASNT). We are giving NDT training and Certification for following methods:

Magnetic Particle Testing (MT / MPT) :

Magnetic Particle testing is widely used to detect surface flaws in ferromagnetic materials. It is used to locate surface and near surface defects such as cracks, laps, seams and inclusions.

Magnetic particle inspection is a cost effective and efficient method of testing ferromagnetic components for discontinuities. This testing is widely used in the automotive and aerospace industries to detect flaws in engine, suspension and braking system components.

With our capacity plus our collection and delivery service, we can assure you of a quality magnetic particle inspection service with a fast turn around to help you achieve your production commitments.

Typical parts tested : Welds, Castings, Forgings, Batch quantities of small machined ferromagnetic parts.

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Liquid Penetrant Testing (PT / LPT) :

Liquid penetrant testing is widely used to detect surface breaking flaws in both ferrous and non ferrous parts. It can be used both on site or in a laboratory application with either colour contrast or fluorescent techniques.

In the laboratory it is particularly suitable for the inspection of batch quantities of machined parts and is a cost effective and efficient method of testing for surface breaking discontinuities.

With our capacity and capability and our collection and delivery service, we can assure you of a quality service with a fast turn around to help you achieve your production commitments.

Typical On-Site Applications : Welds, castings, forgings, structures.

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Radiography Testing (RT) :

Industrial radiography is used for a variety of applications but is commonly performed using two different sources of radiation, X-Ray and Gamma ray sources. The choice of radiation sources and their strength depends on a variety of factors including size of the component and the material thickness.

Within the broad group of X-Ray and Gamma ray sources are a variety of camera choices with varying radiation strengths. Super Quality Services X-Ray capabilities run the gamut from 10 MeV units utilized to radiograph extremely large and thick castings and forgings,to portable X-Ray cameras used for field weld applications and thin wall material inspection.

Gamma sources Iridium (Ir192) used for a variety of weld inspections and Cobalt (Co 60) inspections for thick component testing.

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Ultrasonic Testing (UT) :

Traditional Ultrasonic inspection uses high frequency sound energy to conduct examinations and perform measurements. Considerable information may be gathered during ultrasonic testing such as the presence of discontinuities, material or coating thickness.

The detection and location of discontinuities is enabled by the interpretation of ultrasonic wave reflections generated by a transducer. These waves are introduced into a material and travel in a straight line and at a constant speed until they encounter a surface. The surface interface causes some of the wave energy to be reflected and the rest of it to be transmitted.

The amount of reflected vs. transmitted energy is detected and provides information on the size of the reflector,&therefore the discontinuity encountered. Two basic ultrasonic techniques are Pulse-echo Technique, Through transmission method.

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Visual Testing (VT) :

Visual Inspection or Visual Testing (VT) requires line-of- sight contact with the portion of the specimen to be inspected, adequate illumination of the test specimen, a thorough understanding of the nature and origin of discontinuities and potential defects within the test object, and familiarity with the specifications controlling the inspection process. Unless the specimen cannot be examined visually, visual testing should be the first part of any NDT examination.

Visual testing presents several real advantages: simplicity, rapidity, low cost, minimal training and equipment requirements, and the ability to be performed while the specimen is being used or processed.

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