A Study on the Formability Factors of Sheet Metal in Deep Drawing of Square Cup by FEM

J. Ocean Eng. Technol. 2000;14(4):86-91.

유한요소법에 의한 정사각컵 디프드로잉 성형에 미치는 성형인자에 관한 연구

이명섭,황종관,강대민

성지공업고등학교 교사,부경대학교 대학원,부경대학교 기계공학부

Keywords: Finite element method, Formability, Punch loads, Thickness strain, Formability factors, Radius of die and punch, Friction coefficient

핵심용어: 유한요소법, 성형성, 성형하중, 두께변형률, 성형인자, 펀치와 다이 모서리 반경, 마찰계수

Abstract

Numerical simulation of sheet metal forming for panels as other components has wide acceptance in the automotive industry. Therefore this paper was focused in the drawability factors (which are friction coefficient , radius of die and punch ) on the square cup deep drawing by the explicit finite elements code $PAM-STAMP^{TM}$. The computed results are compared with the experimental results to show the validity of the analysis. In order to compare the simulation results with the experiment results and predict the effect of drawability factors, the relationships between punch load punch stroke, and the relationships between thickness strain and distance are used. According to this study, the results of simulation by using $PAM-STAMP^{TM}$ will give engineers good information to access the drawability of square drawing.