Residual Stresses and Distortions in Aluminum Alloy Sheet After Welding Under Pre-tension

被引：3

作者：

Li, Jingyong ^{[1
]}

Lu, Yaming ^{[1
]}

Liu, Zhipeng ^{[1
]}

Zhang, Mingming ^{[1
]}

机构：

[1] Jiangsu Univ Sci & Technol, Adv Welding Technol Prov Key Lab, Zhenjiang 212003, Jiangsu, Peoples R China

来源：

LIGHT METALS TECHNOLOGY 2009 | 2009年 / 618-619卷

关键词：

aluminium alloy; pre-tension; welding residual stress and distortion; numerical simulation;

D O I：

10.4028/www.scientific.net/MSF.618-619.45

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

By applying the elastic pre-tension method, 5A05 aluminium alloy sheets with 4mm thickness were welded. It is shown that the peak value of residual stresses and their distribution vicinity, the longitudinal buckling distortions and plane deformations of specimens after welding under pretension were obviously reduced. It is considered that pre-tension counteracts the compression stress in regions close to the weld generated by thermal expansion, consequently reduces the compression plastic deformations and the tensile stresses in these regions when cooling down, and accordingly diminishes the compressive stresses far from the weld.

引用

页码：45 / 48

页数：4

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