A thermal-plastic model of friction stir welding in aluminum alloy

被引：1

作者：

Zhang Peilei ^{[1
,2
]}

Yan Hua ^{[1
,2
]}

Li Chonggui ^{[1
,2
]}

Yu Zhishui ^{[1
,2
]}

Lu Qinghua ^{[1
,2
]}

机构：

[1] Shanghai Univ Engn Sci, Sch Mat Engn, 333 Long Teng Rd,Songjiang Campus, Shanghai 201620, Peoples R China

[2] Res & Dev Ctr Key Technol Intelligent Ultra Inten, Shanghai 201620, Peoples R China

来源：

SCIENCE AND ENGINEERING OF COMPOSITE MATERIALS | 2017年 / 24卷 / 03期

基金：

上海市自然科学基金;

关键词：

friction stir welding; plastic deformation heat; thermal model; CONCEPTUAL-MODEL; MAGNESIUM ALLOY; MICROSTRUCTURE; AL;

D O I：

10.1515/secm-2014-0344

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

A three-dimensional heat transfer model for friction stir welding is presented in this paper. A moving coordinate was introduced to reduce the difficulty of modeling the moving tool. Heat input from the tool shoulder and the tool pin were considered in the model. The plastic deformation heat was introduced into the model, too. It is clear that the heat production increased owing to plastic deformation, and this process depends on the stress level. Temperature measurement experiments were done to validate the calculated results. The calculated results were in good agreement with the experimental results. Preheating the workpiece is beneficial to obtain a good weld seam.

引用

页码：439 / 446

页数：8

共 16 条

[1]

Brown W.F., 1993, Aerospace Structural Metals Handbook, CINDA/USAF CRDA Handbooks Operation

[2] A conceptual model for the process variables related to heat generation in friction stir welding of aluminum [J].