Development of measurement method of work hardeningbehavior in large plastic strain for sheet metal forging

10th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes

Yoshikawa, Nobuo^1 ; Yamashita, Tomohiro^1 ; Shirakami, Satoshi^1 ; Kada, Osamu^1 ; Yoshida, Tohru^1 ; Hiwatashi, Shunji^1

Steel Research Laboratories, Nippon Steel and Sumitomo Metal Corporation, 20-1 Shintomi, Futtsu, Chiba

293-8511, Japan^1

关键词: Accuracy Improvement;    Equivalent plastic strain;    FE analysis;    Measurement methods;    Metal forging;    New Measurement Method;    Simple shear test;    Work hardening behaviors;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/734/3/032050/pdf
DOI  :  10.1088/1742-6596/734/3/032050

来源: IOP

【 摘 要 】

For the purpose of accuracy improvement of sheet metal forging FE analysis, we have developed a new measurement method of work hardening behavior in large plastic strain by repeatedly performing simple shear test using pre-strained steel sheet. In this method, it is possible to measure work hardening behavior more than equivalent plastic strain 2.0. In addition, it was carried out a comparison between developed method and compression test in order to verify the validity of the results by the developed method. As a result, both results were in good agreement. The validity of developed method has been verified.