온도에 따른 마그네슘 합금 판재의 스프링백 예측

The purpose of this study is to predict the spring back on the basis of various hardening law at the elevated temperatures. To evaluate material property of AZ31B magnesium alloy sheet, Uniaxial tensile, Cyclic loading and 2D-Draw bending problem that is known as a representative test method for springback evaluation were performed at elevated temperature. and than, The results are compared with the Numerical Analysis result of hardening laws.