NDT and visual inspection

Question 1

What is the most used application of NDT?

Answer 1

testing of welds and castings. Because it is very hard to weld or cast a solid object with totally controll of all the process variables.

Question 2

What is important for the implementation of NDT?

Answer 2

• To know and describe what kind of defect we expect to find and the threshold about what to reject or to accept

Question 3

What are the general stages of NDT?

Answer 3

1. the supply of a specific stimulus to a part
2. the detection of the response from the material
3. the evaluation of the response to get information about part properties

Question 4

What can visual inspection contribute to?

Answer 4

• detect surface defects
• act as a preliminarly inspection, often resulting in the request for further testing

Question 5

What are some ways to preform remote visual inspection?

Answer 5

• Boroscopes
• Optical fibers
• Microcameras