In Reply to: MIG not TIG? posted by Triode_Kingdom on November 23, 2014 at 17:46:11:
"Also, will a MIG allow me to weld, say, a 0.090 thick angle to a 0.25 or 0.50 plate? In other words, when one piece is very thin and the other much thicker, is MIG still appropriate?"
Communicate with Jody and get a correct answer from somebody very much in the know.
TIG definitely produces the best welds, but operator skill is crucial. In the situation described, I can see the operator holding a TIG torch so the puddle forms mostly from the thicker material piece.
BTW, a lot of MIG work is done with CO2, as the shielding gas. That definitely will not do, when welding aluminum. I've seen guys, like Keith Fenner, over on YouTube use a 75% argon/25% helium mix as the shielding gas, when welding aluminum. Remember, the 1st successful welds of aluminum were done with 100% helium shielding and the process was called "heliarc".
Eli D.
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Follow Ups
- RE: MIG not TIG? - Eli Duttman 18:18:18 11/23/14 (1)
- Still waiting... - Triode_Kingdom 20:44:34 11/24/14 (0)