What is Nondestructive Testing (NDT)

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Nondestructive Testing (NDT) is as the name also reflects, inspection and testing of materials and products without destroying them during the evaluation. So once the test is done, the product or part can still be used or sold to the costumer.
NDT is often used in manufacturing to ensure the quality of the products, and given it does not damage the product, it is a very cost effective way to ensure product integrity and reliability.

Types of Nondestructive Testing

A wide group of analysis techniques falls under the umbrella of NDT, and is commonly used within engineering.

Some of the methods are listed below.

  • Visual Inspection
  • Acoustic Emission Testing
  • Magnetic Flux Leakage
  • Ultrasonic Testing
  • Electromagnetic Testing (ET)
  • Guided Wave Testing
  • Laser Testing Methods
  • Leak Testing
  • Microwave Testing
  • Magnetic Particle Testing (MT)
  • Radiographic Testing
  • Thermal/Infrared Testing

Examples of NDT

Below are some examples of how NDT can be used in practice.

  • For a company producing mobile phones, acoustic testing is often used to ensure the handset is within specification. It could for example be some glue residue blocking a hole for the microphone, which would be picked during test.
  • For a company producing sachets or hermitically sealed food, leak testing would be used either as an inline system integrated as part of the production line, or as an offline system as a quality control.

NDT can be used to mitigate potential risks which have been identified, but also as part of a root cause analysis when an issue arise.

If you would like to know more about NDT and how they can be used as part of problem solving or risk mitigation, then our 8D Training or FMEA Training might be of interest to you. Please contact us for a free quote with no obligations.

Alternatively you can continue to our quality training page to see our available courses.

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Nondestructive Testing