Which Material Cannot be welded by gas? - Page 2
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  1. #21
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    Quote Originally Posted by memphisjed View Post
    how did you get stainless to flow? I have had the seams repel from each other? Forge welding works, then you get iron oxide to act as flux.
    I don't really remember. I'll have to try it and see.

  2. #22
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    a couple of pieces of 1.5" plate would love to watch some poor sucker trying to do that with gas

  3. #23
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    Actually ,you can weld magnesium with oxy acetylene....any old car book will tell how,as many old car castings were magnesium(10% Al).....did you know AEC used magnesium in sumps ,blocks and housings up to the mid fifties?...Early VW motors also used magnesium castings.........when you get an AEC 7 .7 block ,the difference in weight from say a Gardner 6LW block is very noticeable......And despite what you might think,its not all that easy to set a magnesium casting to burn......Ive tried on AEC flywheel housings that were cracked.....the first one I did ,I ruined it by using Al filler rod.....Fairly common mistake.

  4. #24
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    Gas will weld almost nothing. It is the heat of the flame when the gas is burned that allows welding.

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