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Tech & Fab
Mig welding aluminum?
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<blockquote data-quote="twentyfootdaredevil" data-source="post: 693793" data-attributes="member: 1649"><p>It would be easier on you to use 80/20 or 90/10. Straight Argon isn't the best choice for MIG. It will always look like a cold weld. </p><p></p><p>You TIG weld with straight Argon.</p><p></p><p></p><p>I should add that ALOT of people mig weld with pure argon so, it's not a bad choice. It gives a concentrated heat zone and that is good except the opportunity is better for gas entrapment in the weld and porosity. A helium mix will mitigate those problems as long as you do you job.</p></blockquote><p></p>
[QUOTE="twentyfootdaredevil, post: 693793, member: 1649"] It would be easier on you to use 80/20 or 90/10. Straight Argon isn't the best choice for MIG. It will always look like a cold weld. You TIG weld with straight Argon. I should add that ALOT of people mig weld with pure argon so, it's not a bad choice. It gives a concentrated heat zone and that is good except the opportunity is better for gas entrapment in the weld and porosity. A helium mix will mitigate those problems as long as you do you job. [/QUOTE]
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