Quote:
Originally Posted by GregWeld
Remember too -- these TIG machines are INVERTER machines -- DO NOT BALL THE END OF THE TUNGSTEN when welding aluminum.... that is "old skool"... sharpen the tungsten to a point - square off the end just a touch - and weld away... I'm using 2% Ceriated or Thoriated on all my stuff - now I don't even switch "type" when going from SS to Alum... I do use a fresh tungsten - but I no longer use the pure (green end) to do aluminum.
Just my 2 cents (sense? LOL) worth
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That's actually very interesting to me. I took a welding course a little over a year ago, and we used nothing but the Miller Dynasty 350 DX's for TIG and SMAW, but whenever we did aluminum welding from .020 and up (thickest I ever welded on was 0.3125), we always used the Green rods and always balled the ends up on them. Most everything else was done with the red 2% thoriated rods ground as sharp as you could get them, paying special attention the striations made by the grinding stone.
I guess it's a different strokes for different folks type of deal.