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Old 08-31-2012, 09:10 PM
timothale timothale is offline
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copper backup

a copper backup helps with thin metal, it absorbs some of the heat, Harbor freight now sells them, I've use copper water pipe flattened, copper bus bar !/4 in thick reshaped ...back 50 years ago they used to sell what was called arc fender rod, i think it was 6013. metal about the size of a pencil lead. arc welding thin stuff is difficult, usually I weld down hill, the rod pointing up. It's hard to get your car in the right position for a good weld.
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