Simulation of the Effect of Mould Parameters on the Thickness Changing in Deep Drawing Process

As an aided tool of sheet metal forming process, the technology of computer simulation can reflect the interaction between the mould and blank dynamically, and the thickness distribution during the whole forming process. In the paper, the thickness attenuation ratio under different key mould parameters such as radius of die and punch, the gap between die and punch on the deep drawing process were analyzed. Detailed analysis shows that the thickness attenuation is smallest when radius of die is five times of wall thickness, radius of punch is four times of wall thickness, and the gap between die and punch is 1.02 times of wall thickness. The experiment indicates that computer simulation can be helpful for studying the connection between deep drawing process and mould parameters, and the results are beneficial of mould design and analysis of products quality.