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  1. SteveThePirate

    Prediction of tensile stress fracture in sheet metal bends

    Hi everyone. Thank you for your replies. Yes I know about the tables and rules of thumb. I did not know about grain direction, so thank you for that. I was hoping it was possible to calculate, but it appears not. So for one of the parts I’ve replaced my two 90deg bends with a much larger 180deg...
  2. SteveThePirate

    Prediction of tensile stress fracture in sheet metal bends

    Hi, I'm trying to calculate whether a 2.5mm thick sheet of 5052-H32 Aluminum will fracture if bent at a 90deg angle with a 1.5mm inner radius. For the part in question, the manufacturer originally agreed to the 3mm bend radius in my CAD & drawing, but the parts they shipped us had no radius at...

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