Posted by Blaine
on 5/23/2006, 5:59 pm, in reply to "mig vs tig"
66.18.220.123
actually, with DCSP, 70% is at the tungsten, thats why u need to use tungsten since it has an extremely high melting point, it can take the heat, with stick, DCRP it doesnt take much heat to melt the core rod, but u need to get penetration into the base metal, which acts as a heat sink, so u need 70% of the heat into the base metal. with stick DCSP, ur not getting good pen, but ur burning that rod in a hurry, which is why its used for surface welding or other situations like that. With GTAW u get into ion flow for your heat, rather than electrical flow, thats all i know, i learn more about it in school next year. i own a GTAW welder and asked my instructor about that, cause i thought it was curious that 70% of the heat is in the tungsten rather than base metal..... all he told me is with GTAW, u start getting into Ion flow to transfer the heat. so, i guess its a long complicated answer beyond that
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