IntroductionWelding requires skill. Determining “how to weld” requires knowledge regarding the materialsbeing welded and welding process, among numerous other factors. Because of huge numberof variables involved, the knowledge of the welding engineer and the skill of the welder needto be validated by a series of tests. All this information...

Radiographic and ultrasonic weld inspection are the two most common methods of non-destructive testing (NDT) used to detect discontinuities within the internal structure of welds. The obvious advantage of both these methods of testing is their ability to help establish the weld’s internal integrity without destroying the welded component....