Transactions of Materials and Heat Treatment

Title：Erichsen test and numerical simulation of commercial pure titanium TA1 sheets

Authors： Liang Pengfei1 2 Chen Fuxiao1 2 Guo Junqing1 2

Unit： 1.Henan University of Science and Technology

KeyWords： 2.Collaborative Innovation Center of Nonferrous Metals Henan Province

ClassificationCode：

year,vol(issue):pagenumber：2016,41(4):45-48

Abstract：

The Erichsen tests of commercial pure titanium TA1 sheets were conducted by BHB-80 biaxial tensile tester under room temperature with thicknesses of 0.8, 1.0 and 2.0 mm respectively. The test results show that their cupping values(IE values) are 11.00,11.10 and 11.90 mm respectively，and the IE values increase with the increase of sheet thickness. In addition, based on the experiment, the forming processes of TA1 sheets were simulated by finite element method (FEM), and virtual IE values were obtained by the maximum punch force criterion (MPFC). Furthermore, the distribution of the effective strain was analyzed, and the fracture positions were predicted. The simulation results show that the virtual IE value is smaller than that obtained by testing, and the influence of sheet thickness on it is unchanged. With the increase of deformation, the areas of the maximum effective strain shifts, and the predicted fracture position is the same as the experimental results.

Funds：

河南省基础与前沿技术研究计划项目（112300413227）

梁鹏飞（1990-），男，硕士研究生

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