What is NDT and Why is it Useful?

What is NDT and Why is it Useful?

Manufacturing Technology Insights | Friday, October 29, 2021

NDT is a Quality Assurance management tool that is used to examine materials and components in order to ensure their safety and reliability.

Fremont, CA:Non-destructive testing is a word that refers to the process of examining materials and components without altering or destroying their usefulness. Surface and subsurface flaws and faults can be found, sized, and located using NDT or NDE. NDT is important in daily life and is required to ensure safety and reliability. NDT is used to check aircraft, spacecraft (shuttle), motor vehicles, pipelines, bridges, railways, power plants, refineries, buildings, and oil platforms, to name a few examples. When utilized effectively, NDT is a Quality Assurance management tool that can produce outstanding results. It necessitates knowledge of the many methods available, their strengths and limits, as well as knowledge of the required standards and specifications for testing.

Materials, goods, and equipment that fail to meet design specifications or last as long as expected due to hidden faults may necessitate costly repairs or early replacement. Unsafe circumstances or catastrophic failure, as well as income loss owing to unplanned plant shutdown, may be caused by such faults. Each stage of an item's construction can be subjected to non-destructive testing. NDT can be used to inspect materials and welds and determine if they should be affirmed, denied, or improved. NDT techniques can then be used to monitor the item's or structure's integrity over the course of its design life.

The non-destructive testing method that can be utilized is determined by the material's physical qualities. To ensure the accurate selection of the appropriate NDT method for each application, a complete understanding of each NDT method is essential. The following are the most regularly utilized NDT methods:

  • Acoustic Emission
  • Visual Inspection
  • Liquid penetrant examination
  • Eddy Current Examination
  • Ultrasonic Examination
  • Radiographic Examination

NDT is useful in the following ways:

  • Accident avoidance and cost-cutting
  • Enhancing the reliability of the product
  • To determine whether or not a requirement is acceptable.
  • To provide repair criteria information
  • Ultrasonic Examination
  • Radiographic Examination

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