{"id":743,"date":"2021-12-24T14:35:48","date_gmt":"2021-12-24T14:35:48","guid":{"rendered":"https:\/\/mewelding.com\/?p=743"},"modified":"2023-04-03T03:14:53","modified_gmt":"2023-04-03T03:14:53","slug":"with-and-without-backing-for-welder-qualification","status":"publish","type":"post","link":"https:\/\/mewelding.com\/with-and-without-backing-for-welder-qualification\/","title":{"rendered":"With And Without Backing For Welder Qualification"},"content":{"rendered":"\n
Welding without backing takes greater skill on the part of welder. Which is why, Section IX has listed deletion of backing as an essential variable for welder qualification. This article will let you know about the various aspects of with and without backing for welder qualification. The latter half of the article gives some attention to the role of consumable inserts in qualification of a welder as per Section IX<\/a>.<\/p>\n\n\n\n Can A Welder Qualified On A Test Coupon With <\/em>Backing Weld On A Job Without Backing?<\/strong><\/p>\n\n\n\n Deletion of backing is an essential variable for welder qualifications as per QW 350\/QW 402.4 (except for Oxy-fuel welding).<\/p>\n\n\n\n This means that if the Performance Qualification was done on a coupon with<\/em> backing, it qualifies the welder to only weld production jobs with<\/em> backing. The welder cannot weld on jobs without<\/em> backing.<\/p>\n\n\n\n Note that only the deletion<\/em> of backing has been given as an essential variable (not the addition).<\/p>\n\n\n\n This means that if the Performance Qualification was done on a coupon without<\/em> backing, it qualifies the welder to weld production jobs with<\/em> backing as well as without<\/em> backing.<\/p>\n\n\n\n The essence is that welding without<\/em> backing is considered a tougher skill than welding with<\/em> backing. If a welder accomplishes the skill of learning to weld without backing, in the eyes of the Code – he is considered good enough to weld with and without backing, both.<\/p>\n\n\n\n A table summarizing this is given below:<\/p>\n\n\nWith Backing vs Without Backing<\/strong><\/h2>\n\n\n\n