Welder Qualification

Qualification testing of a welding procedure normally requires documentation to show all the variables used during the welding test and the documented inspection and test results.The variables required to be documented are typically such items as:  welding process used, size, type and classification of filler alloy, type and thickness of base material welded, type and polarity of welding current, amps and volts recorded, travel speed during welding, welding position, type and dimensions of joint design, preheating temperature, interpass temperature, post weld heat treatment details, and others.  In addition to the recording of all the welding variables used during the test, in order to qualify a welding procedure, details of the inspection and test results must also be recorded.  These records must show that the inspection and testing has proven that the weld samples have met or exceeded the specified standard requirement.