Effect of Traverse/Rotational Speed on Material Deformations and Temperature Distributions in Friction Stir Welding

材料科学技术（英文）, 2008, 24(6): 907-914.

^1, , ^2, , ^3, , ^4,

1.State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China

2.State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China

3.State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China

4.State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China

基金项目: the Program for Changjiang Scholars and Innovative Research Team in University of China(PCSIRT) and the National Key Basic Research Special Foundation of China(2005CB321704) 国家自然科学基金(10421202;10802017;10225212)

Effect of Traverse/Rotational Speed on Material Deformations and Temperature Distributions in Friction Stir Welding

Zhao ZHANG ^1, , Jun BIE ^2, , Yali LIU ^3, , Hongwu ZHANG ^4,

1.State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China

2.State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China

3.State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China

4.State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China

Keywords： Fully coupled thermo-mechanical model

A fully coupled thermo-mechanical model was developed to study the temperature fields and the plastic deformations of alloy AL6061-T6 under different process parameters during the friction stir welding (FSW) process.Three-dimensional results under different process parameters were presented.Results indicate that the maximum temperature is lower than the melting point of the welding material.The higher temperature gradient occurs in the leading side of the workpiece.The calculated temperature field can be fitted well with the one from the experimental test.A lower plastic strain region can be found near the welding tool in the trailing side on the bottom surface,which is formed by the specific material flow patterns in FSW.The maximum temperature can be increased with increasing the welding speed and the angular velocity in the current numerical modelling.

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Effect of Traverse/Rotational Speed on Material Deformations and Temperature Distributions in Friction Stir Welding

参考文献