| Autor: |
Shi-Hong Zhang, Wen-Tao Zheng, Yong-Chao Xu, Zhong-Tang Wang |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2005, Vol. 778 Issue 1, p630-634, 5p |
| Abstrakt: |
Magnesium alloys, as one of the lightest metal structural materials, are attracting more and more attention. At present, most of Mg alloy products are manufactured by die casting. For enlarging the applications of Mg alloys, many researchers are engaged in developing its plastic forming technology. However, the study on warm sheet hydroforming of Mg alloy is rarely reported. Therefore, a set of warm sheet hydroforming tools was designed for experimental research on the hydroforming of rectangular Mg alloy cups with a step cavity. The corners of the deeper cavity are difficult to form directly because of the severe stretching. Multi-stage hydroforming method was used to improve the sheet thickness reduction in the corners of the deeper cavity. Several different two-stage hydroforming methods were realized by elastic-plastic finite element simulation. According to the results of finite element simulation, the influence of forming methods on the minimum thickness of formed parts and the reasons were analyzed, and the optimal process for the rectangular Mg alloy cup with a step cavity was determined. © 2005 American Institute of Physics [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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