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Up Topic Welding Industry / General Welding Discussion / Manual to semi automatic GTAW
- - By Bijit Sarkar (*) Date 07-30-2016 05:39 Edited 07-30-2016 06:28
Is it necessary to qualify a test coupon for semi-automatic GTAW where we have PQR for manual GTAW, all the variables are same except fire feeding controlled by machine??..QW-410.25 say manual or semi-automatic to machine or automatic is not an essential variable, but manual to semi-automatic is not mentioned any where...and do I need to qualify welder for semi-automatic GTAW as manual and semi-automatic GTAW variable for welder is same?
Parent - - By js55 (*****) Date 08-01-2016 16:58
The procedure does not need to be requalified under ASME but the welder does.
Parent - - By pipewelder_1999 (****) Date 08-01-2016 17:57
What para. requires that?

QW-356 makes no distiction for the method used to add the filler metal and if its soomewhere else, boy have I messed up some papers.

Gerald
Parent - - By js55 (*****) Date 08-01-2016 19:04
Gerald,
Good catch. I did not read the question thoroughly. No need to revise all your paperwork.  :lol:
It changes at machine and automatic NOT manual to semi auto.
Parent - By pipewelder_1999 (****) Date 08-01-2016 19:54
:grin:
Up Topic Welding Industry / General Welding Discussion / Manual to semi automatic GTAW

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