Welding For Performance. Scope and General Provisions 11 Scope. In general the welding process does not affect fatigue performance but depending on the likely location for a fatigue initiation site the quality of the weld in terms of presence of flaws would be expected to affect the fatigue life.
Detail drawings shall clearly indi-cate by welding symbols or sketches the details of. In general the welding process does not affect fatigue performance but depending on the likely location for a fatigue initiation site the quality of the weld in terms of presence of flaws would be expected to affect the fatigue life. Normally a welder who qualified in 6G position can weld all positions or alternatively if he qualified in one 2G and one 5G can weld every other position.
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The Welding Performance Qualification WPQ is a certification test that shows certain skills of welders to perform a certain welding procedure. Welder Performance Qualification WPQ is also known as Welder Qualification Test WQT or Performance Qualification. In general the welding process does not affect fatigue performance but depending on the likely location for a fatigue initiation site the quality of the weld in terms of presence of flaws would be expected to affect the fatigue life. No sense is performing destructive testing if performance fails initial visual inspection of the weld.