Aluminum repair materials, sourcing and availability help wanted.

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teletech

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Any good experiences welding Al armor here?

The rear sponson on my CVR(T) was so badly damaged, somebody patched it with some 6061 or something and the patch just rotted out in a most impressive manner. I wound up cutting it off entirely. Now I need to find some compatible material for a replacement as well as some consumables.

It's about 7'1"x6"x.25" but larger would be fine (up to a point of course).

It's 7017 so I believe I can use any of 7017, 7018, 7020, 7039, 5059, 5083.
I understand the 5083 is the most common of those in the US.
The documents I can find give instructions for MIG so I'd have to find some wire as well.
I was actually wondering if folks had tried TIG on this stuff? If so I could just cut some thin strips off the bit I cut off and use that as filler.

thanks,
 

Whiterabbit

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If you try to tig it you might want to run helium as a shielding gas, it'll help it run "hotter". You would probably need a water cooled torch too! That puppy is gonn'a get hot. Just say'n from personal experience from welding aluminum hulls on big boats and sponsons on M113's
 

teletech

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I remember a gate I tig'd up from thick solid copper... talk about getting hot! I've got a water-cooled torch and a bottle of He so I'm set there.
What I'm still totally lacking is any clue where to find a repair panel. What did you use for those M113 sponsons?
 
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