Here are a few of my latest welds. I'm starting to question if my welder (Miller Synchowave 180SD) is having issues. This weld is for a chair I'm making and is 3/8" plate welded to 1.5 .120 wall square tube. I pre-heated the 3/8" plate first and did clean the joint with a stainless wire brush. Welder settings: AC Balance (10 - max penetration), 150 amps (peddle was variable), 3/32 Throiated, 3/32 4043 filler, 15 CFH Argon, #8 cup - 3/32 gas lens.
My welding has been getting better, but it is still pretty frustrating at times. I know I have to get the arc length down a little. My issue is that the cleaning on the sides of the weld looks more like my AC balance is less than the max penetration settings.
Could you guys review what I've got here and give me some hints?
