2004•Natural Science Journal of Xiangtan UniversityRequires access

The Numerical Simulation Method of Variable Blank Holder Force During Sheet Deep Drawing Forming Process

Wei Zhu

Abstract

The predominant failure mode in stamping of sheet metal parts are wrinkling and fracture. In general,these defects may be eliminated by appropriate manipulated the blank holder forces.In this paper, the numerical simulation of variable blank bolder force control forming techniques have been carried out by the aid of the Finite Element Method software DYNAFORM,and the best optimum load curve of blank holder force when deep drawing a complex front-door inner sheet on sedan has been obtained.

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Key concepts: Blank, Deep drawing, Sheet metal, Stamping, Computer simulation, Finite element method, Structural engineering, Mode (computer interface)