How To Weld Aluminum With A Gasless Mig Welder. You cant use steel based flux core wire in your FCAW welder to weld Aluminum. You may burn out your welder.
Apply the push method and fix wire feed issues as well. But too much gun angle can push gas to one side of the weld leaving the other unprotected. If the parameters are set correctly the welding arc will operate stably and with sufficient power.
Keeping your gun angled only 5-15 from vertical allows the shielding gas to blanket the weld area.
And you wont get the join you expected. Prepare your push-pull wire feed. The short answer is no. The Amps needed to weld Aluminum is more than a basic 90 Amp or 130 Amp welder can generate.