sheet metal design question
sheet metal design question
(OP)
I am designing a piece with rectangular base flange shape (see attached) that will be buttwelded - for a proper model can you suggest a gap dimension between two flanges? (the gap on the pdf is exaggerated for better visualization) thanks!






RE: sheet metal design question
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RE: sheet metal design question
If you are forming it in house, I'd say make the gap as small as your tolerance would allow. If you are welding it in house, ask welding what size gap they need, or prefer.
If either of these operations are being outsourced, you would need to consult whoever is doing the job what they need. Or, if someone is doing both operations, just leave it up to them, assuming you give them the critical data for the product you need in return.
RE: sheet metal design question
RE: sheet metal design question
I've seen gaps of 1/2 the material thickness used. That's close enough to fill with weld and gives some room for tolerance stack up.
RE: sheet metal design question
In real life the cuts/bends are going to have a manufacturing tolerance. If digital design is touching and the actual part is on the plus side the sides might buckle/warp. Depending on the part, manufacturing tolerances.... it might be better to design in a gap such that at the real world maximum material condition the edge just meets or still has minor gap.
RE: sheet metal design question
Too your specific question, I'd use a minimal gap. If the weld joint needs preparation, call that out in your weld symbol.
Diego