2404 Optimization of Blank Holder Force in Deep Drawing of Aluminum Can Body : Consideration of Earing Minimization of Rolled Anisotropic Blank Sheet

Abstract

Aluminum cans are one of the major beverage containers, and the can body has a production issue called "Earing", which is caused by the material anisotropy of rolled blank sheet during the deep drawing process. In this study, we have implemented the drawing process simulation of aluminum can bodies by using the LS-DYNA and have tried design optimization to reduce the "Earing" by the adjustment of the segmented Blank Holder Force (BHF). Using the design of experiments (DOE) the response surface by the second polynomial approximation has been constructed and the design parameters have been optimized.