Welder certification
Welder certification, (also known as welder qualification) are specially designed tests to determine a welder’s skill and ability to deposit sound weld metal. The tests consists of many variables, including the specific welding process, type of metal, thickness, joint design, position, and others. Most often, the test is conducted in accordance with a particular code. The American Welding Society (AWS), or American Society of Mechanical Engineers (ASME) are typical and provide many codes dependent on the application of welding, but manufacturers may specify their own standards and requirements as well.
Once a welder passes a test (or a series of tests) their employer will certify the ability to pass the test, and the limitations or extent they are qualified to weld, as a written document (welder qualification test record, or WQTR).
There is much more complexity to welder certification, including the usual need to follow a welding procedure specification (WPS) that may need to be qualified by a procedure qualification record (PQR). A welder’s certification will have some type of period of effectiveness, and a welder will most likely be required to retest if at any time there is “reason to question his ability”.
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