Quote:
Originally Posted by Scubachef
I definately do need another 100ft. I try to weld 10 or 15 minutes a day at least to practice. I'm pretty busy but I try to get at least some time in each day. I'm actually feeling more comfortable quicker with the aluminium than when I was focusing on steel. For some reason I feel I see the puddle easier once it forms. Everyone can carve 10 minutes out right? I'm really just stumped why the tungsten was eating itself yesterday.
Vince and Sieg, thanks for the replies. I can't see the video, I don't think the link posted Vince.
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You need to check your A/C BALANCE settings.... just A/C is only one setting -- now you have to balance the A/C for cleaning vs heat input... when cleaning the heat is coming back to the tungsten (A/C being oscillating). If the balance is set wrong you'll eat your tungsten.
Set your balance around 70% EP (electrode positive) ---- and your frequency around 100hz or greater.
Not all aluminum alloys are weldable.