Numerical Simulation and Experimentation Research of Bend-Forming Process of Sheet Metal with Multi-Bends

Based on the rigid-plastic FEM,numerical simulations of the typical sheet metal with multi-bends are carried out by MSC/superform.have analyzed scientifically the law of metal flow of synchronous forming process of sheet metal with multi-bends.According to the simulation result about stress field,strain field,velocity field and changed load and so on.that can forecast produce defect produced in the course of deformation,offer the reliable reference basis for form- ing this kind of workings,has designed the reasonable die structure which bend-forming of the multi-bends sheet metal bend-forming is coinstantaneous according to the numerical simulation result,through the forming experimental study result show that the bend forming process of sheet metal with multi-bends is realizable.