Residual Stress Distribution Feature for T-joints of Aluminium-Lithium Alloy by Double Sided Synchronization Fiber Laser Welding

被引：0

作者：

He Enguang ^{[1
]}

Gong Shuili ^{[1
]}

Chen Li ^{[1
]}

Yang Jing ^{[1
]}

Bai Jie ^{[2
]}

机构：

[1] AVIC Beijing Aeronaut Mfg Technol Res Inst, Sci & Technol Power Beam Proc Lab, Beijing 100024, Peoples R China

[2] Shanghai Aircraft Design & Res Inst, Shanghai 201210, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2013年 / 42卷

关键词：

aluminum-lithium alloy 2198; T-joints; residual stress; X-ray diffraction; double sided synchronization fiber laser;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The residual stress distribution of the T-joints for aluminum-lithium alloy welded by double sided synchronization fiber laser welding was measured by X-ray diffraction. The results show that the residual stress distribution for T-joints is symmetrical. The maximum of residual stress is 210 MPa, which is longitudinal residual stress and appears in the vicinity of the weld fusion line. The longitudinal residual stress is larger than the transverse, and it is more important. With the welding input increasing, the maximum of the longitudinal residual stress decreases.

引用

页码：102 / 105

页数：4