Cold stamping formability of AZ31B magnesium alloy sheet undergoing repeated unidirectional bending process

被引：55

作者：

Zhang, Lei ^{[1
]}

Huang, Guangsheng ^{[1
]}

Zhang, Hua ^{[1
]}

Song, Bo ^{[1
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Natl Engn Res Ctr Magnesium Alloys, Chongqing 400030, Peoples R China

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2011年 / 211卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Magnesium alloy sheet; RUB; Texture; Stamping formability; Cell phone housing; ROOM-TEMPERATURE; MECHANICAL-PROPERTIES; TEXTURE;

D O I：

10.1016/j.jmatprotec.2010.11.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The repeated unidirectional bending (RUB) process was carried out on an AZ31B magnesium alloy in order to investigate its effects on the cold stamping formability. The limiting drawing ratio (LDR) of the RUB processed magnesium alloy sheet with an inclination of basal pole in the rolling direction can reach 1.5 at room temperature. It was also confirmed that cell phone housings can be stamped successfully in crank press using the RUB processed AZ31B magnesium alloy sheet. The improvement of the stamping formability at room temperature can be attributed to the texture modifications, which led to a lower yield strength, a larger fracture elongation, a smaller Lankford value (r-value) and a larger strain hardening exponent (n-value). (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：644 / 649

页数：6

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