The role of tool offset on the microstructure and mechanical properties of Al/Cu friction stir welded joints

In this study, dissimilar butt joining of 6061 aluminum alloy and commercially pure copper via friction stir welding was performed with varying tool offset value. The mechanical properties were compared using transverse tensile testing. It was found that as the tool offset decreased from a position...

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Main Authors: Hou, Wentao, L. H., Shah, Huang, Guoqiang, Shen, Yifu, Gerlich, Adrian
Format: Article
Language:English
Published: Elsevier Ltd 2020
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/28142/
http://umpir.ump.edu.my/id/eprint/28142/1/The%20role%20of%20tool%20offset%20on%20the%20microstructure%20and%20mechanical%20.pdf
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author Hou, Wentao
L. H., Shah
Huang, Guoqiang
Shen, Yifu
Gerlich, Adrian
author_facet Hou, Wentao
L. H., Shah
Huang, Guoqiang
Shen, Yifu
Gerlich, Adrian
author_sort Hou, Wentao
building UMP Institutional Repository
collection Online Access
description In this study, dissimilar butt joining of 6061 aluminum alloy and commercially pure copper via friction stir welding was performed with varying tool offset value. The mechanical properties were compared using transverse tensile testing. It was found that as the tool offset decreased from a position of 2 mm–0 mm, the ultimate tensile strength of the welded joint increased, and then decreased drastically when the offset was more than 1.6 mm. X-ray tomography results showed that an effective mechanical interlocking structure was formed with a chaotic interface along the joint line. In addition, in-situ tool temperatures measurement showed that the stir zone peak temperature was highly dependent on tool offset.
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publishDate 2020
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spelling ump-281422020-03-31T02:41:02Z http://umpir.ump.edu.my/id/eprint/28142/ The role of tool offset on the microstructure and mechanical properties of Al/Cu friction stir welded joints Hou, Wentao L. H., Shah Huang, Guoqiang Shen, Yifu Gerlich, Adrian TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics In this study, dissimilar butt joining of 6061 aluminum alloy and commercially pure copper via friction stir welding was performed with varying tool offset value. The mechanical properties were compared using transverse tensile testing. It was found that as the tool offset decreased from a position of 2 mm–0 mm, the ultimate tensile strength of the welded joint increased, and then decreased drastically when the offset was more than 1.6 mm. X-ray tomography results showed that an effective mechanical interlocking structure was formed with a chaotic interface along the joint line. In addition, in-situ tool temperatures measurement showed that the stir zone peak temperature was highly dependent on tool offset. Elsevier Ltd 2020-06-05 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/28142/1/The%20role%20of%20tool%20offset%20on%20the%20microstructure%20and%20mechanical%20.pdf Hou, Wentao and L. H., Shah and Huang, Guoqiang and Shen, Yifu and Gerlich, Adrian (2020) The role of tool offset on the microstructure and mechanical properties of Al/Cu friction stir welded joints. Journal of Alloys and Compounds, 825 (154045). pp. 1-30. ISSN 0925-8388 (print), 1873-4669 (online). (Published) https://doi.org/10.1016/j.jallcom.2020.154045 https://doi.org/10.1016/j.jallcom.2020.154045
spellingShingle TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
Hou, Wentao
L. H., Shah
Huang, Guoqiang
Shen, Yifu
Gerlich, Adrian
The role of tool offset on the microstructure and mechanical properties of Al/Cu friction stir welded joints
title The role of tool offset on the microstructure and mechanical properties of Al/Cu friction stir welded joints
title_full The role of tool offset on the microstructure and mechanical properties of Al/Cu friction stir welded joints
title_fullStr The role of tool offset on the microstructure and mechanical properties of Al/Cu friction stir welded joints
title_full_unstemmed The role of tool offset on the microstructure and mechanical properties of Al/Cu friction stir welded joints
title_short The role of tool offset on the microstructure and mechanical properties of Al/Cu friction stir welded joints
title_sort role of tool offset on the microstructure and mechanical properties of al/cu friction stir welded joints
topic TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
url http://umpir.ump.edu.my/id/eprint/28142/
http://umpir.ump.edu.my/id/eprint/28142/
http://umpir.ump.edu.my/id/eprint/28142/
http://umpir.ump.edu.my/id/eprint/28142/1/The%20role%20of%20tool%20offset%20on%20the%20microstructure%20and%20mechanical%20.pdf