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Old 07-02-2013, 06:20 AM
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Robby Robby is offline
Motorized Bicycle Member
Join Date: May 2012
Location: Melbourne, Australia
Posts: 41

Your buddy has done some nice Tig welds! On the roll cages we fabricate at work for race cars we do what you did on the rear dropout gusset: the gap at the end in the corner can help reduce concentrating weld tension from shrinkage. If there is multiple planes of weld, like in corners, by leaving a little gap on the gusset corner (particularly if it's a wrap around gusset), when one weld cools, it's less likely to form a crack in the corner! Maybe good accidental engineering?!
Top work.
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