Re: Sheet metal welding tip: aluminum block behind


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Posted by Todd Wilson on Friday, August 03, 2007 at 23:52:34 :

In Reply to: Sheet metal welding tip: aluminum block behind posted by chriscase on Friday, August 03, 2007 at 20:29:24 :

The copper is the best thing to use to back sheet metal. You dont want to use to much heat because you can warp the sheet metal. It can sometimes take hours to stitch up a patch panel because you have to zap a little and let it cool and zap some more. You cant strike a continous arc and weld a seam without creating warping.


Todd




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