Mig Welding Aluminum with a spool gun is a bit more finicky than mig welding steel.
If your settings are way off, you can burn thru several contact tips.
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WELD PROCESS = GMAW, GAS METAL ARC WELDING
METAL TYPE = ALUMINUM ALLOY
THICKNESS = 1/8"
WELD TYPE = FILLET
JOINT TYPE = TEE
POSITION = 4F OVERHEAD
VOLTS = 20.0 volts
WIRE SPEED = 385 IPM
WIRE SIZE = .035” 4043
AMPS = POLARITY = DCEP
GAS FLOW = 25-35 CFH 100% ARGON GAS
CTWD = 1/2” - 3/4"
FILLER METAL = ER4043 .035"
ADDITIONAL SETTINGS =
TIPS:A longer contact to work distance CTWD of 1/2”-3/4” helps with spray transfer aluminum mig welding.