The deformation analysis of friction stir welding with different clamping distances for large thin-walled joints

被引：3

作者：

Gao, Chang ^{[1
]}

Yu, Haidong ^{[1
]}

Gu, Bin ^{[1
]}

Lin, Yujin ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Shanghai Key Lab Digital Manufacture Thin Walled S, Dongchuan Rd 800, Shanghai 200240, Peoples R China

来源：

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2023年 / 28卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Clamping distance; large thin-walled joints; welding deformation; restraint intensity index; friction stir welding; NUMERICAL-SIMULATION; RESIDUAL-STRESSES; DISTORTION;

D O I：

10.1080/13621718.2023.2167779

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Clamping scheme may change the local stiffness and affect the welding deformation which is very important for the large thin-walled joints connected by friction stir welding with heavy load and heat production. In this paper, the welding experiments of large thin-walled joints were conducted and the numerical simulation model is established based on three-dimensional stress mapping method. The accuracy of the numerical model is verified and welding deformation with various clamping distances is discussed. The restraint intensity index is employed to describe the influence of clamping distance on the stiffness of welding seam and welding deformation. The mechanism of welding deformation with the effect of clamping distance is well revealed by the analysis of welding stress and restraint intensity.

引用

页码：415 / 423

页数：9

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