Inspection using non-destructive techniques or NDT inspection as it is popularly known, is a term used for examining materials and components in such a manner that allows those materials to be evaluated without changing or destroying their structure or usefulness. NDT is also known as NDE and can be used to find, size and spot flaws or discontinuities within the components or materials. Advanced NDT inspection in Malaysia has become quite widespread and all the industries have accepted it heartily so that they can use the techniques in a good way to evaluate the components.
NDT inspection plays a major part in our everyday life though not directly, but it still does. It is necessary to ensure safety and reliability regarding the products that are being used for infrastructural purposes. Normally, the stuff on which NDT techniques are applied include spacecraft (shuttle), aircraft, pipelines, power stations, refineries, oil platforms, building materials, bridges, trains and motor vehicles. Of course, all these materials are used for various essential purposes on a regular basis.
Quality Assurance Management Tool
NDT is a quality assurance management tool. It can provide impressive results when used properly. It needs an understanding of the different methods available, their capacities and limitations. Knowledge of the applicable standards and specifications for performing the tests is relevant for performing the tests. Products, equipment and materials which fail to pass the design requirements or standards will be detected through the tests. The projected life due to undetected flaws might get reduced and require expensive repair or early replacement. Such flaws might also be the cause of hazardous conditions or catastrophic failure along with loss of revenue due to unplanned factory shutdown.
The best part about non-destructive testing is that it can be applied to every stage of production. The materials and welds can be evaluated using NDT and can either be accepted, repaired or rejected. Non-destructive testing techniques can then be used to assess the integrity of the product or structure throughout it’s design tenure.
Application of NDT Techniques
The objective of using NDT include:
- Provide information on repair criteria.
- Determine acceptance to a given requirement.
- Improve product authenticity.
- Accident prevention and cost reduction.
To be able to derive proper information and obtain valid results, the following is needed:
- Acoustic Emission
- Magnetic Particle Inspection
- Visual Inspection
- Liquid Penetrant Inspection
- Radiographic Inspection
- Ultrasonic Inspection
- Eddy Current Inspection
Application of all these techniques provide certain advantages to the applicants. Application of these nondestructive testing methods require some degree of technical expertise as well. There are some companies which are arranging for online courses as well as off-line courses for people aspiring to become part of this practice. These courses are concise, industry-driven, and computerized thus making any it easy for the students to enroll in the programs and learn the processes easily. The courses are structured in a way to provide ample opportunities for the students to learn and then perform within the non-destructive testing industry.
No comments:
Post a Comment