Abstract
This work is focused on the minimization of the elastic deformed drawn parts after tools removing. We use a Response Surface Method based on Diffuse Approximation and a specific algorithm for the optimum searching. For the deep drawing process simulation, we use the Inverse Approach with stress improvements to take into account the bending and unbending effects. Internal efforts with the final workpiece shape are used for the springback calculation, using an Updated Lagrangian Formulation. Two deep drawing benchmarks are studied to validate the proposed procedure with reference to Abaqus® and Stampack® commercial codes.
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