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Old 02-16-2013, 04:32 PM
young grease monkey young grease monkey is offline
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Join Date: Sep 2011
Location: Chicago
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Default Re: Thinking about buying a mig-welder...

if you want to make/modify frames you can be confident in, its gotta be tig. buy a cheap stick welder to practice, then learn tig. a lot of bicycles are chromoly and using anything but tig will make brittle, dangerous welds because you need precise heat control. tig is also by far the best process for thin material aka bike frames. tig is also the best for aluminum.
some people say that a motorbike defeats the purpose of a bike. i tell them to get a flintstone's car.
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Old 02-16-2013, 04:52 PM
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2door 2door is offline
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Default Re: Thinking about buying a mig-welder...

I agree. I like to use MIG to tack something together just enought o hold things then move to TIG for the finish welds. TIG is the ultimate machine for precise, strong and good looking welds. Takes some practice but if you can master the technique you'll be years ahead of any other form of welding available to the home/shop welder.
There is some exotic stuff out there but way out of the reach of the average hobbiest.

Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"
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Old 07-03-2013, 05:49 PM
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Robby Robby is offline
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Join Date: May 2012
Location: Melbourne, Australia
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I mainly Tig weld. Interestingly, Chromoly was developed in war time specifically for brazing, as the lower temperature wouldn't create embrittlement, and you would have a strong and light airframe or whatever.. The aircraft boys are a little bit more serious with their Tig heat treating of chromoly frames. A lot of old old bikes were brazed together, and some cool custom bikes have clear coat over the bare metal and braze, looks trick!
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