Simulation Of Deep Drawing Process for Different Materials

Abstract

The computer simulation of sheet metal forming processes is particularly attractive because of the cost of materials and of dies, the design of which is still based on trial-and-error procedures. However, the large number of variables, which are usually unknown but which control these kinds of processes, demands more flexible and reliable numerical techniques in order to be able to solve these problems. Analytical solutions are limited due to the strong non-linear nature of the deformation procedure, in particular when complex shapes are formed [1]. Finite element method (FEM) analysis, therefore, aims to solve such sheet metal forming problems by modeling them with different forming conditions until a satisfactory final solution is achieved. In this paper, simulation results were compared for the strain distribution curves for radial er, hoop e„ and thickness 6t, strains. Different plots for strains and deformation modes of each FE were model constructed. The comparison between the simulation results of FE model and the corresponding experimental results were done. Enabled the selection of the most effective value- of the simulating parameters, i.e. usim, and u,.