copper backing of arc welds
copper backing of arc welds
(OP)
Hello, I have a question regarding SMAW and MIG welds. People commonly use copper stock below, say, a but-weld to carry the pool along and create a better weld. I've tried to figure out physically why the copper does not melt or deform, with no luck. Does anyone have a chemical explanation for this phenomenon? I understand that the copper will carry the current far easier than the steel being welded, but the arc and molten pool seems to have no effect?
Thanks,
Daniel
Thanks,
Daniel





RE: copper backing of arc welds
RE: copper backing of arc welds
RE: copper backing of arc welds
RE: copper backing of arc welds