ASME IX seems to clearly consider GMAW and FCAW to be the same process (i.e. QW-355, essential variables)). I do not find any clear indication in AWS D1.1 that differentiates the 2 as same or different "processes".
Crux of the matter is whether a welder qualified using AWS D1.1 with FCAW is qualified for GMAW (hard wire, spray-not short arc) and vice-versa.
I can see where FCA and GMA have many similarities, but given FCA might be self shielded, or gas shielded, and there generally is the presence of slag - I feel FCA may require additional skills and abilities not required for GMA spray. Also - FCA can, dependent on wire type used, be all-position - while GMAW spray is not.
Any Thoughts or remarks to clarify this matter ?
Also posted this in Technical Forum
Hi Jerry,
I don't know about ASME, but according to D1.1, Table 4.11, "Welding Personnel Performance Essential Variable Changes Requiring Requalification", item (1) states "To a process not qualified". So, the answer is no. A welder qualified per AWS D1.1 with FCAW is not qualified for GMAW, nor is it reversable. Welder qualifications between processes are not interchangeable. Each process must be a separate qualification.
I have the same question about it. Now I read the ASME IX again and I found the GMAW and FCAW is different according to QW-361.1(b) QW-362.2(a).Is this right?Please give me E-mail.
QW-361 and 362 are for welding operators, not welders, but albeit;
After further thought and consideration, and other feedback, I am
convinced that FCAW and GMAW are different processes, and will treat them that way. What probably got me started was the fact that QW-255 shows all the variables to be the same for both - but I suppose now that this is simply to avoid the need for duplicate or identical pages for each. QW-404.23 also helps throw a monkey wrench into them being the same, as the filler metal product form is an essential variable.
adios and thanks
good question Jerry,
I have been wondering the same thing here.
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