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Got the T/A 185TSW and pleased with the unit. Easy to scroll thru the parameters and to make changes. Saw in a Miller book to not ball the tungsten with advanced squarewave so tried it with a .040 on some .050 Al. Turned out poorly with arc wander and burn thru etc. The tungsten balled itself which is suppose to be a sign of too much current. Used 1 amp per each .001 in of material as a reference. Wondering what the relationship was between peak current in pulse with ac freq and pulse freq-width? Also backgroud current. I understand that increasing ac freq narrows the arc with more penetration but not sure of the others and how much to change the peak current. Stupidity shows, don't it?
Thanks,
Ed
Thanks,
Ed