mig and flux core tips and techniques, equipment, filler metal
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I have searched but could not see an answer to my question. Instructions show reverse polarity for welding aluminum but could not see any other info. Can I use aluminum wire in machine as is or do I have to change parts? Don't have the want to buy a spool gun at this point. Thanks
57 B/A wagon, 408"BB, 14' Bonair travel trailer, 71 Nova 355"SB, 2-51HenryJ's, 07 2500HD with 26 Prowler 5th wheel.
cj737
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I doubt seriously you can run aluminum wire from a spool with that machine as it’s not a push-pull MIG. I’m not even sure it’s compatible with any of their spoolguns, but maybe. MIG aluminum would be run DCEP, not DCEN and you’d use 100% Argon not mixed.
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It has both DCEN and DCEP. I cannot put pictures on here.
57 B/A wagon, 408"BB, 14' Bonair travel trailer, 71 Nova 355"SB, 2-51HenryJ's, 07 2500HD with 26 Prowler 5th wheel.
tweake
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running the aluminum wire is the easy part. fit a nylon liner and use a fairly stiff wire (eg 5356) and it will feed through a short torch. you will also need to right drive rollers.
however lack of amps is a big issue and also lack of fine adjustment controls. dialing it in is a real pain and i'm not sure if you can even do it on a 4 tap machine.

in all honestly i would use a mig thats been designed to run aluminum mig.
tweak it until it breaks
drizler1
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How about using a torch to preheat and weld it while hot?


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tweake
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drizler1 wrote:How about using a torch to preheat and weld it while hot?


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that helps with lack of amps, but if you can't dail it in your weld will be crap.
tweak it until it breaks
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Thank you all for the info.

The chart on the door shows 20ga max for aluminum. 1/8 max for steel.
57 B/A wagon, 408"BB, 14' Bonair travel trailer, 71 Nova 355"SB, 2-51HenryJ's, 07 2500HD with 26 Prowler 5th wheel.
Bill Beauregard
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Aluminum MIG is normally considered to be a 1/8" and thicker process. I've done little, but found it tough on thin metal. I'd think you need a much bigger machine for a spool gun to work. Miller did react to the new Ford trucks with all aluminum bodies. They call it "optimized" for thin aluminum sheet. It is a 350 sized machine, (That usually means 450 peak output.) It costs more than $10,000.

As for the question: Will it feed? The answer is absolutely NO. You'd have to run .023 wire, it'll simply birds nest in the rollers.
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