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Published in: The International Journal of Advanced Manufacturing Technology 7-8/2020

04-01-2020 | ORIGINAL ARTICLE

Prediction of temperature and residual stress distributions in friction stir welding of aluminum alloy

Authors: L. Nie, Y. X. Wu, H. Gong

Published in: The International Journal of Advanced Manufacturing Technology | Issue 7-8/2020

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Abstract

A thermal model considering the heat generated by friction and plastic deformation is developed for friction stir welding. The proportion of heat-generated between friction and plastic deformation depends on the contact states determined by the temperature and velocity of the tool. The model is verified by welding experiment, and the numerical results agree with the experimental data. Then, the effects of process parameters on temperature and residual stress are investigated using the validated model. These process parameters involve the welding speed, rotational speed, and axial force. The results show that the temperature increases with the increase of the rotational speed and axial force, and decreases with the increase of the welding speed. The increase of the axial force and welding speed will lead to larger tensile stress in the weld zone. Furthermore, the relationship between peak temperature, peak residual stress, and process parameters are established though regression method.

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Literature
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go back to reference ASM Handbook Committee (1990) ASM Handbook Vol. 2: Properties and selection: nonferrous alloys and special-purpose materials. ASM International, Ohio, pp 62–122 ASM Handbook Committee (1990) ASM Handbook Vol. 2: Properties and selection: nonferrous alloys and special-purpose materials. ASM International, Ohio, pp 62–122
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go back to reference Kaufman JG (1999) Properties of aluminum alloys: tensile, creep, and fatigue data at high and low temperatures. ASM international, Washington Kaufman JG (1999) Properties of aluminum alloys: tensile, creep, and fatigue data at high and low temperatures. ASM international, Washington
Metadata
Title
Prediction of temperature and residual stress distributions in friction stir welding of aluminum alloy
Authors
L. Nie
Y. X. Wu
H. Gong
Publication date
04-01-2020
Publisher
Springer London
Published in
The International Journal of Advanced Manufacturing Technology / Issue 7-8/2020
Print ISSN: 0268-3768
Electronic ISSN: 1433-3015
DOI
https://doi.org/10.1007/s00170-019-04826-4

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