Analysis of Square Cup Deep-Drawing Test of Pure Titanium

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

Ogawa, Takaki^1 ; Ma, Ninshu^1 ; Ueyama, Minoru^2 ; Harada, Yasunori^2

JSOL Corporation, 2-2-4 Tosabori, Nishi-ku, Osaka

550-0001, Japan^1

University of Hyogo, 2167 Shosya, Himeji, Hyogo

671-2280, Japan^2

关键词: Forming conditions;    Pure titaniums;    Solid elements;    Square cup;    Square cup deep drawing;    Strong anisotropy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/734/3/032072/pdf
DOI  :  10.1088/1742-6596/734/3/032072

来源: IOP

【 摘 要 】

The prediction of formability of titunium is more difficult than steels since its strong anisotropy. If computer simulation can estimate the formability of titanium, we can select the optimal forming conditions. The purpose of this study was to acquire knowledge for the formability prediction by the computer simulation of the square cup deep-drawing of pure titanium. In this paper, the results of FEM analsis of pure titanium were compared with the experimental results to examine the analysis validity. We analyzed the formability of deepdrawing square cup of titanium by the FEM using solid elements. Compared the analysis results with the experimental results such as the forming shape, the punch load, and the thickness, the validity was confirmed. Further, through analyzing the change of the thickness around the forming corner, it was confirmed that the thickness increased to its maximum value during forming process at the stroke of 35mm more than the maximum stroke.