What type of wire are you using. Looks to me like 5356. If it is throw the crap away and get some 4043.Wire speed and is very critical to getting good welds on aluminum. Forget about what the machine says. Pull the trigger and adjust the speed until it runs like you want it to. Aluminum is no harder to weld than anything else,just takes practice. I burnt 15-1# pound spools of .035 -4043 and a big tank of argon last week on one job.
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