Well, I figured it was about time I asked this question - I'd like to start making my own bicycle frames, and do a little bike repair on the side. In my particular type of biking....the riders are lucky to get 6 months out of a frame before it cracks and/or snaps. I was wondering what machine would be best for welding frames (renyolds 851 steel, 7005 AL, U6 alloy, 6061 AL, and cromo), and, is it possible to reweld an aluminum frame even after it has been heattreated? If so, how would you go about re-heat treating it? I've been welding for about a year now (smaw, mig and oxygen/acteleyne) and I know I want to use TIG for the welding/rewelding on the frames. Thanks all for your help.
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Welding and rewelding Aluminum bike frames