Quote:
Originally Posted by GregWeld
WTF?!?!?!
TIG WELDING IS ALWAYS A PUSH..... MIG you can push or pull.
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Be nice Greg or your SS exhaust system will crack from welding Karma....
I'll have to try it... probably picked up bad habits teaching myself. Pulling works pretty well for me with the aluminum now that I've got the contamination issue figured out
Quote:
Originally Posted by GriffithMetal
Greg is right, always push the TIG torch. What's the torch angle? What thickness material are you welding? Thick and thin metals have different welding parameters when TIG welding. Was the 1/8" tungsten green stripe "pure"? You can google the amperage rating for different thickness tungsten and type. Are you welding the aluminum on AC or DC+? Are you using a transformer style TIG or an Inverter style?
I can weld .063" 3003 aluminum with 3/32 red stripe 2% Thoriated without a problem. I use 1/8" green stripe pure tungsten when welding something critical in thin aluminum. I am using a 110amp setting and probably welding at 80 amps or so with a transformer based TIG.
TIG welding is complex at times.
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Torch angle around 45*ish. I use Vibrant aluminum tubing to fabricate my intercooler tubing and that is .065. It welds nicely with the 3/32 red stripe and 1/16 rod now that I figured out my contamination problem. My machine is pretty basic...Miller Diversion 165. I'm brain dead right now at 1am but I know the machine is marked which way for aluminum and the other way for steel. I don't remember the details on the 1/8" tungsten right now either... I'll check on my cart I think I bought a pack of them. I know I tried several things on the advice of the welding shop trying to figure out my contamination issue.