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Old 01-11-2013, 11:21 AM   #3294
ER70S-2
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Joined: Sep 2009
Location: SE Denver-ish
Oddometer: 5,134
When I'm welding alum I use lots of clamps for heat sinks and I always clamp to a backing so the puddle won't fall through. Just a hobby guy.

My tungsten stays shinny using 15 CFH. (1993 250 Syncrowave, air cooled torch)

This is thicker (1/8") so I don't have the larger backing I'd use for the thinner guages. I'd also have backing behind the corners.
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2004 DR650: 60,933 miles
2013 WR250R

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