Simulation of clearance effect on LDR in stainless steel deep drawing

Deep drawing is one of the most important processes in the sheet metal forming industry where a flat sheet is drawn by the punch into the hole matrix And It takes the shape of the punch. The effective parameter in this process  is clearance between punch and matrix. Finite element method is a useful tool for the study of process and impact parameters affecting it. In this project the effect of clearance between punch and matrix on LDR was considered and result are showed 0.9 mm clearance is more optimum suitable for 0.6 mm sheet thickness in deep drawing and decreased to 0.66 mm clearance the LDR was decreased.