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Old 02-26-2005, 09:55 AM   #1 (permalink)
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Welding chromoly

Can it be MIG welded or just TIG welded?
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Old 02-26-2005, 11:12 AM   #2 (permalink)
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4130 can be MIG welded but it is not the preferred process and may not be allowed in competition or certain applications.

http://www.millerwelds.com/powerclic...lick_0307.html
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Old 02-26-2005, 05:11 PM   #3 (permalink)
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Thanks, I was just planning on making some A arms for my banshee, I think the strength issue can be overcome with a few gussets with the ER80 wire. Thanks.
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Old 02-26-2005, 09:51 PM   #4 (permalink)
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It is common practice in many fab shops to mig chassis and tig suspension.



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Old 02-27-2005, 06:01 AM   #5 (permalink)
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Back in the day, Oxy-Acetylene was the preferred method.
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Old 02-27-2005, 01:48 PM   #6 (permalink)
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Eric, you can mig chromoly, but it will get brittle near the welds. You will have to take a torch and heat the tubing around the weld area slowly, backing the temperature down slowly, to stress relieve.
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