Tig 1/4 aluminum

by Cradle rbr
(Pelahatchie ms)

I am in welding school and I am now learning how to weld with the TIG unit. My question is, I tried to weld a 1/4 coupon together and it looked great. I bent it (no cracking). But as it cooled off it cracked right down the welded site.
Thanks


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that happens sometimes,
thats why you should probably wait until it cools for bend tests.

aluminum is a weird metal. the weld and heat affected zone becomes softer than the base metal and bends differently .

jody