Metal Flow Control in Producing the Non Symmetrical Parts in Deep Drawing Process


the quality of the cups drawn in the deep drawing process are secured by the rate of metal flow into the die cavity, efficiently control on the metal flow can reduce and eliminate a lot of defects such as wrinkling, tearing and earing especially in the square deep drawing due to the non-uniform stresses induced along die cavity. This control is obtained using a restraining force supplied by blank holder tool or draw beads or both. Therefore this research focuses on the study these parameters numerically and experimentally. Ansys software based on finite element method was used to model and analyze the influence of blank holder gap and draw bead parameters in the forming process. Appropriate number of the experiments were done to compare and verify the results obtained in the numerical simulation.