This paper uses numerical simulation to study a method in combined drawing process with thinning the wall when drawing of a cylindrical cup of sheet metal. The software Deform 2D is used to examine effect of die design parameters (inclination of die) on deformation possibility of metal. Based on simulation results, it is possible to select appropriate die design parameters (cone die) and improve deformability and improve product quality. | Numerical simulation to study effect of die design parameters on deformation possibility of metal on combined drawing