Three-dimensional rigid-plastic FEM simulation of bulk forming processes with new contact and remeshing techniques

Some techniques such as die surface description, contact judgement algorith m and remeshing are proposed to improve the robustness of the numerical sol ution. Based on these techniques, a three-dimensional rigid-plastic FEM cod e has been developed. Isothermal forging process of a cylindrical housing h as been simulated. The simulation results show that the given techniques an d the FEM code are reasonable and feasible for three-dimensional bulk formi ng processes.