Effect of Backing Material and Clamping System on the Tensile Strength Of Dissimilar AA7075-AA2024 Friction Stir Welds

Friction stir welding of dissimilar aluminum alloys has become an important application in the modern industries. Joint strength is a major consideration in this advanced technology. This paper presents an attempt made to improve the weld tensile strength by controlling the temperature distribution...

Full description

Bibliographic Details
Main Authors: Mohammed, M. Hasan, M., Ishak, M. R. M., Rejab
Format: Article
Language:English
English
Published: Springer London 2017
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/17593/1/Effect%20of%20Backing%20Material%20and%20Clamping%20System%20on%20the%20Tensile%20Strength%20Of%20Dissimilar%20AA7075-AA2024%20Friction%20Stir%20Welds.pdf
http://umpir.ump.edu.my/id/eprint/17593/7/Effect%20of%20Backing%20Material%20and%20Clamping%20System%20on%20the%20Tensile%20Strength%20Of%20Dissimilar%20AA7075-AA2024%20Friction%20Stir%20Welds%201.pdf
_version_ 1825823720890957824
author Mohammed, M. Hasan
M., Ishak
M. R. M., Rejab
author_facet Mohammed, M. Hasan
M., Ishak
M. R. M., Rejab
author_sort Mohammed, M. Hasan
collection UMP
description Friction stir welding of dissimilar aluminum alloys has become an important application in the modern industries. Joint strength is a major consideration in this advanced technology. This paper presents an attempt made to improve the weld tensile strength by controlling the temperature distribution during the joining process. High-strength AA7075-T651 and AA2024-T351 aluminum alloys were friction stir welded using different backing and clamping materials. The tool rotation rate was preliminarily investigated to estimate the optimal spindle speed. Next, three composite backing plates and clamping systems were tested in conjunction with varying levels of traverse speeds and materials position. The transient temperatures were experimentally measured at different distances from the welding line. Asymmetric temperature distributions were observed with maximum records on the advancing side of the weld. Moreover, the influence of backing and cover materials on the joint strength was found to be varied with the applied level of the welding traverse speed. Based on these results, an idea to use asymmetric system of backing and cover materials was inspired. This system assisted to improve the temperature distribution and resulted in a sound weld with higher tensile strength. The detailed results of this work were discussed and the main outputs were outlined in the conclusions.
first_indexed 2024-03-06T12:15:20Z
format Article
id UMPir17593
institution Universiti Malaysia Pahang
language English
English
last_indexed 2024-03-06T12:15:20Z
publishDate 2017
publisher Springer London
record_format dspace
spelling UMPir175932017-08-24T02:06:44Z http://umpir.ump.edu.my/id/eprint/17593/ Effect of Backing Material and Clamping System on the Tensile Strength Of Dissimilar AA7075-AA2024 Friction Stir Welds Mohammed, M. Hasan M., Ishak M. R. M., Rejab TJ Mechanical engineering and machinery Friction stir welding of dissimilar aluminum alloys has become an important application in the modern industries. Joint strength is a major consideration in this advanced technology. This paper presents an attempt made to improve the weld tensile strength by controlling the temperature distribution during the joining process. High-strength AA7075-T651 and AA2024-T351 aluminum alloys were friction stir welded using different backing and clamping materials. The tool rotation rate was preliminarily investigated to estimate the optimal spindle speed. Next, three composite backing plates and clamping systems were tested in conjunction with varying levels of traverse speeds and materials position. The transient temperatures were experimentally measured at different distances from the welding line. Asymmetric temperature distributions were observed with maximum records on the advancing side of the weld. Moreover, the influence of backing and cover materials on the joint strength was found to be varied with the applied level of the welding traverse speed. Based on these results, an idea to use asymmetric system of backing and cover materials was inspired. This system assisted to improve the temperature distribution and resulted in a sound weld with higher tensile strength. The detailed results of this work were discussed and the main outputs were outlined in the conclusions. Springer London 2017 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/17593/1/Effect%20of%20Backing%20Material%20and%20Clamping%20System%20on%20the%20Tensile%20Strength%20Of%20Dissimilar%20AA7075-AA2024%20Friction%20Stir%20Welds.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/17593/7/Effect%20of%20Backing%20Material%20and%20Clamping%20System%20on%20the%20Tensile%20Strength%20Of%20Dissimilar%20AA7075-AA2024%20Friction%20Stir%20Welds%201.pdf Mohammed, M. Hasan and M., Ishak and M. R. M., Rejab (2017) Effect of Backing Material and Clamping System on the Tensile Strength Of Dissimilar AA7075-AA2024 Friction Stir Welds. The International Journal of Advanced Manufacturing Technology, 91 (9-12). pp. 3991-4007. ISSN 0268-3768 (Print), 1433-3015 (Online). (Published) https://link.springer.com/article/10.1007/s00170-017-0033-7 DOI: 10.1007/s00170-017-0033-7
spellingShingle TJ Mechanical engineering and machinery
Mohammed, M. Hasan
M., Ishak
M. R. M., Rejab
Effect of Backing Material and Clamping System on the Tensile Strength Of Dissimilar AA7075-AA2024 Friction Stir Welds
title Effect of Backing Material and Clamping System on the Tensile Strength Of Dissimilar AA7075-AA2024 Friction Stir Welds
title_full Effect of Backing Material and Clamping System on the Tensile Strength Of Dissimilar AA7075-AA2024 Friction Stir Welds
title_fullStr Effect of Backing Material and Clamping System on the Tensile Strength Of Dissimilar AA7075-AA2024 Friction Stir Welds
title_full_unstemmed Effect of Backing Material and Clamping System on the Tensile Strength Of Dissimilar AA7075-AA2024 Friction Stir Welds
title_short Effect of Backing Material and Clamping System on the Tensile Strength Of Dissimilar AA7075-AA2024 Friction Stir Welds
title_sort effect of backing material and clamping system on the tensile strength of dissimilar aa7075 aa2024 friction stir welds
topic TJ Mechanical engineering and machinery
url http://umpir.ump.edu.my/id/eprint/17593/1/Effect%20of%20Backing%20Material%20and%20Clamping%20System%20on%20the%20Tensile%20Strength%20Of%20Dissimilar%20AA7075-AA2024%20Friction%20Stir%20Welds.pdf
http://umpir.ump.edu.my/id/eprint/17593/7/Effect%20of%20Backing%20Material%20and%20Clamping%20System%20on%20the%20Tensile%20Strength%20Of%20Dissimilar%20AA7075-AA2024%20Friction%20Stir%20Welds%201.pdf
work_keys_str_mv AT mohammedmhasan effectofbackingmaterialandclampingsystemonthetensilestrengthofdissimilaraa7075aa2024frictionstirwelds
AT mishak effectofbackingmaterialandclampingsystemonthetensilestrengthofdissimilaraa7075aa2024frictionstirwelds
AT mrmrejab effectofbackingmaterialandclampingsystemonthetensilestrengthofdissimilaraa7075aa2024frictionstirwelds