Deep-drawing of magnesium alloy sheets at warm temperatures

doi:10.1016/j.jmatprotec.2006.03.150

CORC > 金属研究所 > 中国科学院金属研究所

	Deep-drawing of magnesium alloy sheets at warm temperatures
	Zhang, S. H.; Zhang, K.; Xu, Y. C.; Wang, Z. T.; Xu, Y.; Wang, Z. G.
刊名	JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
	2007-04-30
卷号	185 期号:1-3 页码:147-151
关键词	magnesium alloy warm deep drawing forming temperature liquid lubricant limit drawing ratio
ISSN号	0924-0136
DOI	10.1016/j.jmatprotec.2006.03.150
通讯作者	Zhang, S. H.(shzangs@imr.ac.cn)
英文摘要	In magnesium alloy sheet products have been attracting more and more attention in recent years because of their application potentials as coverings of portable electrical devices and automotive panels. However, magnesium alloy sheets are usually formed at temperatures between 250 and 400 degrees C because of their poor plasticity at room temperature, which makes the tooling system quite complex and also the products cost expensive. A proper forming temperature range was determined. The effects of blank holding forces on the workpiece quality were analyzed by warm deep drawing of cups from magnesium alloy sheets. Therefore, appropriate process parameters were selected to avoid forming defects effectively. In the paper, a rigid blank holder was used to adjust blank holding forces. A special liquid lubricant PTFE was used on the tool surfaces. The conditions of process defects as flange wrinkling and ruptures were analyzed. Experiments were carried out to verify the computer simulation results. Efforts were made to optimize process parameters by analyzing the causes of defects in order to improve the Limit Drawing Ratio of magnesium alloy workpieces. Computer simulation with explicit finite element method was used to optimize the process parameters before carrying out the actual experiments. It is found that rolled magnesium alloy sheets have good deep drawing formability at a forming temperature range of 105-170 degrees C with the limit drawing ratio up to 2.6. It is also necessary to control the time of heating blanks. The formability will be reduced severely by excessive heating duration. (c) 2006 Published by Elsevier B.V.
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000245390000020
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/91855]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, S. H.
作者单位	1.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China 2.Gifu Univ, Dept Mech Engn, Gifu, Japan
推荐引用方式 GB/T 7714	Zhang, S. H.,Zhang, K.,Xu, Y. C.,et al. Deep-drawing of magnesium alloy sheets at warm temperatures[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2007,185(1-3):147-151.
APA	Zhang, S. H.,Zhang, K.,Xu, Y. C.,Wang, Z. T.,Xu, Y.,&Wang, Z. G..(2007).Deep-drawing of magnesium alloy sheets at warm temperatures.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,185(1-3),147-151.
MLA	Zhang, S. H.,et al."Deep-drawing of magnesium alloy sheets at warm temperatures".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 185.1-3(2007):147-151.