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Old 07-25-2005, 12:50 PM
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welding a subframe, MIG or ARC?

i was going to mig weld the nova clip to the frame of my '59 chevy truck. a buddy of mine was talking with a licensed welder and he was saying that a MIG weld was the coldest type of weld. he said that frames should be arc welded because it is the hottest type.

would it be ok to mig weld this clip or not? should i learn how to arc weld to do this?

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Old 07-25-2005, 01:04 PM
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http://www.hotrodders.com/forums/sho...177#post486177

Read this, it will save me from typing up the same thing.
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Old 07-25-2005, 02:20 PM
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thanks for the link, but it does not really answer my question. i have a mig welder already, my mig welder is a miller 250. it is a 220v welder with the gas setup and infinitly adustable wire speed and voltage. so it would meet the requirements listed in the link.

i just wanted to know if it would be safe to use this or if i need to use an arc welder.
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Old 07-25-2005, 03:27 PM
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Use the mig its not going to hurt anything. I work for a company that builds paving equipment and trailers. We use the Lincoln elite wire with a 75/25 gas mix. great stuff low spatter smooth flow dual sheild. Check out the info. on the Elite wire

http://www.mylincolnelectric.com/Cat...eet.asp?p=5750
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Old 07-25-2005, 05:04 PM
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That MIG unit will be more than enough for what you are doing.
Put some 045 flux core in the mix and you could weld up some one inch plate without any problems.
035 wire with a gas will be more than enough.
Good luck
Jake
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Old 07-25-2005, 05:21 PM
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Building a skyscraper?

Unless you're welding steel that is 1/2" thick or bigger, then your mig will do fine. Stick welding is mainly used for structural applications or repairs on thick metal. The only cold/hot differance will depend on the heat setting used.
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