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Calculate radius and angle for a forming punch for bending sheet metal

Calculate radius and angle for a forming punch for bending sheet metal

Calculate radius and angle for a forming punch for bending sheet metal

(OP)
For example, I need to bend a piece of sheet metal 1"x0.5" (0.010" thick) into a one-bend (L-shaped) part with a radius of 0.100" and 90 degree overbend angle. At the moment of the punch there is one angle and when the punch is lifted material fractures and gives another angle increased by few degrees. Does anybody know a software that can approximate required radius and angle of the forming punch? I have ProEngineer availble, can it be done there?  Any ideas welcome...

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