Stamping of thin-walled structural components with magnesium alloy AZ31 sheets

被引:0
作者
Chen, FK [1 ]
Chang, CK [1 ]
机构
[1] Natl Taiwan Univ, Dept Mech Engn, Taipei 10764, Taiwan
来源
Numisheet 2005: Proceedings of the 6th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes, Pts A and B | 2005年 / 778卷
关键词
D O I
暂无
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
In the present study, the stamping process for manufacturing cell phone cases with magnesium alloy AZ31 sheets was studied using both the experimental approach and the finite element analysis. In order to determine the proper forming temperature and set up a fracture criterion, tensile tests and forming limit tests were first conducted to obtain the mechanical behaviors of AZ31 sheets at various elevated temperatures. The mechanical properties of Z31 sheets obtained from the experiments were then adopted in the finite element analysis to investigate the effects of the process parameters on the formability of the stamping process of cell phone cases. The finite element simulation results revealed that both the fracture and wrinkle defects could not be eliminated at the same time by adjusting blank-holder force or blank size. A drawbead design was then performed using the finite element simulations to determine the size and the location of drawbead required to suppress the wrinkle defect. An optimum stamping process, including die geometry, forming temperature, and blank dimension, was then determined for manufacturing the cell phone cases. The finite element analysis was validated by the good agreement between the simulation results and the experimental data. It confirms that the cell phone cases can be produced with magnesium alloy AZ31 sheet by the stamping process at elevated temperatures.
引用
收藏
页码:619 / 624
页数:6
相关论文
共 5 条
  • [1] Sheet metal forming of magnesium wrought alloys -: formability and process technology
    Doege, E
    Dröder, K
    [J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2001, 115 (01) : 14 - 19
  • [2] Effect of texture on the mechanical properties and formability of magnesium wrought materials
    Kaneko, J
    Sugamata, M
    Numa, M
    Nishikawa, Y
    Takada, H
    [J]. JOURNAL OF THE JAPAN INSTITUTE OF METALS, 2000, 64 (02) : 141 - 147
  • [3] OHWUE T, 2001, J JSTP, V42, P246
  • [4] The press formability in magnesium alloy AZ31
    Somekawa, H
    Kohzu, M
    Tanabe, S
    Higashi, K
    [J]. MAGNESIUM ALLOYS 2000, 2000, 350-3 : 177 - 182
  • [5] Deformation mechanism in a coarse-grained Mg-Al-Zn alloy at elevated temperatures
    Watanabe, H
    Tsutsui, H
    Mukai, T
    Kohzu, M
    Tanabe, S
    Higashi, K
    [J]. INTERNATIONAL JOURNAL OF PLASTICITY, 2001, 17 (03) : 387 - 397