Axisymmetric Deep Drawing Multi-step Forming The Reverse Of Simulation Technology Research

Axisymetric deep drawing is very important in sheet metal forming processes. In this paper, according to axisymetric deep drawing processes, multi-step inverse simulation method has been presented, which can help to optimize the intermediate shapes and the blank shape and to give some deformation information of the part.Based on the assumption of ideal forming theory and plain stress, the FE equations for axisymetric multi-step deep drawing inverse simulation are formulated with linear membrane element and the rigid-plastic material model. The gained node coordinates will form the contours of the optimum intermediate shapes and blank shape.A program of the inverse simulation system focused on the calculation function has been developed using C++ language. By applying the algorithm to an example, the availability of the method is validated. This method is simple and efficient to be extended.