Yershov A.A.,PLM Ural and Delkam Ural Company Group |
Kotov V.V.,PLM Ural and Delkam Ural Company Group |
Loginov Yu.N.,Ural Federal University
Metallurgist | Year: 2012
A method for optimizing the initial form of the semifinished product for a flat stamping is proposed. The method has been realized as program package PAM-STAMP 2G, which performs finite-element modeling of metal-shaping operations. First, the parameters of the new semifinished product are assigned and the initial dimensions specified in the Blank Editor. The curve that describes the outer contour of the sheet is used to create the semifinished product. This procedure must be followed because subsequent corrections to the initial shape of the semifinished product will essentially be made by correcting the curve. The process of making the tray part is modeled in five stages: clamping of the semifinished product; first stamping pass; removal of the load and calculation of the springback; second stamping pass; calculation of springback. In Iterations, the next routine, the user specifies the parameters for the optimization iterations that are to be executed, the criteria for convergence of the process.