Non Destructive Testing

The non-destructive NDT test covers a wide range of analysis techniques to examine the properties of materials, components, products, welds, or systems without causing damage. They play a vital role in human life today.

This test can be considered as a tool for quality management.

Also, the welding inspector must have the appropriate technical and behavioral knowledge to weld inspection and non-destructive NDT tests, which are mentioned below some of the important points of these features.

Non-destructive welding tests have 3 common features :

1- A physical phenomenon creates an effect.

2- They interpret and evaluate the created effect.

3- They use an intermediate environment and a physical phenomenon.

Non-destructive NDT tests are descriptive for NDT testing

In this test, the person performing the non-destructive NDT test and test must have a high level of knowledge of how each of the non-destructive tests work so as not to waste resources, money and time, because performing these non-destructive tests does not work for anyone. And passing specialized courses and experience and high skills of welding inspectors and technicians are required.

Type of test :

Non-destructive PT test (penetrant test)

MT Non-Destructive Test (Magnetic Particle Test)

Non-destructive testing UT (ultrasonic testing)

Non-destructive ED test (eddy current test)

Non-destructive RT test (radiographic test)

Non Destructive Test PAUT (Metal Array Test)

Non-destructive TOFD test (welding diffraction time test)

Non-destructive testing of PA (ultrasonic test of fuzzy welding array)

Non-destructive testing ET (welding rotation flow test)

Non-destructive testing VT (welding eye inspection test)

Non-destructive LT test (leak test)

NR Non-Destructive Test (Neutron Radiographic Test)

Non-destructive VA test (vibration analysis test)

Non-destructive AE test (sound emission test)

Non-destructive IR test (infrared test)

The purpose of the Non-Destructive Welding Test (NDT) is to describe defects in the weld and the area affected by the heat and the base metal.

Details to consider during the welding process:

1- Boiling temperature
2- Cleaning, shaving, grinding and welding
3- Structural defects and welding discontinuities

Details that can be checked in the post-welding stages:

1- Existence of any unfilled cavities, destruction, cracks, overlapping in the weld
2- Compatibility of welding with design and method requirements
3- Acceptance of welding according to the appearance and quality of construction
4- Accuracy of welding dimensions, using a ruler or welding tape measuring tool