Pneumatic bulging of magnesium AZ 31 sheet metals at elevated temperatures

被引：59

作者：

Siegert, K ^{[1
]}

Jäger, S ^{[1
]}

Vulcan, M ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Met Forming Technol, D-7000 Stuttgart, Germany

来源：

CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2003年 / 52卷 / 01期

关键词：

magnesium; pneumatic; sheet metal;

D O I：

10.1016/S0007-8506(07)60575-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper deals with forming magnesium sheet metal components like auto body parts by pneumatic bulging. Furthermore, this paper deals with the evaluation of true stress-true strain curves as well as with forming limit curves determined by pneumatic bulging at temperatures up to 350degreesC. It can be shown that magnesium AZ31 is quite good formable at temperatures in the range of 250degreesC to 350degreesC. Outgoing from these fundamental investigations, an auto body sheet metal component was formed by pneumatic bulging at a temperature of about 300degreesC. Furthermore, the strains over the component were measured with an automated grid analysis. This analysis shows a nearly equal distribution of the strains over the component.

引用

页码：241 / 244

页数：4