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Investigation of microstructure and mechanical properties of friction stir lap welded AA6061-T6 in various welding speeds

Friction stir welding of Aluminum alloys has been increasingly used in the industry on the ground of higher welding quality in comparison with conventional methods. However, not enough studies have been done on a lap joint of AA 6061-T6 which widely been used in aerospace industries. In this article...

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Main Authors: Fadaeifard, Firouz, Gharavi, Farhad, Matori, Khamirul Amin, Daud, Abdul Razak, Mohd Ariffin, Mohd Khairol Anuar, Awang, Mokhtar
Format: Article
Language:English
English
Published: Asian Network for Scientific Information 2013
Online Access:http://psasir.upm.edu.my/id/eprint/30349/1/Investigation%20of%20microstructure%20and%20mechanical%20properties%20of%20friction%20stir%20lap%20welded%20AA6061.pdf
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spelling oai:psasir.upm.edu.my:30349 http://psasir.upm.edu.my/id/eprint/30349/ Investigation of microstructure and mechanical properties of friction stir lap welded AA6061-T6 in various welding speeds Fadaeifard, Firouz Gharavi, Farhad Matori, Khamirul Amin Daud, Abdul Razak Mohd Ariffin, Mohd Khairol Anuar Awang, Mokhtar Friction stir welding of Aluminum alloys has been increasingly used in the industry on the ground of higher welding quality in comparison with conventional methods. However, not enough studies have been done on a lap joint of AA 6061-T6 which widely been used in aerospace industries. In this article, friction stir lap welding of 6061-T6 aluminium alloy with 5 mm thickness was carried out by using various welding speeds. The effect of welding speed on microstructure, lap shear performance, micro hardness, failure mode and effective plate thickness was investigated. Results showed that tensile shear strength of weld increased by the rising welding speed. Rising welding speed caused hooking and thinning approaches to two plate interfaces which in turn concluding in higher tensile shear strength. The fracture surface of welds was analyzed by field emission scanning electron microscopy (FE-SEM). Study of the fracture surface of the nugget zone by EDX indicated the Fe compounds in that region. Asian Network for Scientific Information 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/30349/1/Investigation%20of%20microstructure%20and%20mechanical%20properties%20of%20friction%20stir%20lap%20welded%20AA6061.pdf Fadaeifard, Firouz and Gharavi, Farhad and Matori, Khamirul Amin and Daud, Abdul Razak and Mohd Ariffin, Mohd Khairol Anuar and Awang, Mokhtar (2013) Investigation of microstructure and mechanical properties of friction stir lap welded AA6061-T6 in various welding speeds. Journal of Applied Sciences, 14 (3). pp. 221-228. ISSN 1812-5654; ESSN: 1812-5662 http://scialert.net/archivedetails.php?issn=1812-5654&issueno=227 10.3923/jas.2014.221.228 English
institution UPM IR
collection UPM IR
language English
English
description Friction stir welding of Aluminum alloys has been increasingly used in the industry on the ground of higher welding quality in comparison with conventional methods. However, not enough studies have been done on a lap joint of AA 6061-T6 which widely been used in aerospace industries. In this article, friction stir lap welding of 6061-T6 aluminium alloy with 5 mm thickness was carried out by using various welding speeds. The effect of welding speed on microstructure, lap shear performance, micro hardness, failure mode and effective plate thickness was investigated. Results showed that tensile shear strength of weld increased by the rising welding speed. Rising welding speed caused hooking and thinning approaches to two plate interfaces which in turn concluding in higher tensile shear strength. The fracture surface of welds was analyzed by field emission scanning electron microscopy (FE-SEM). Study of the fracture surface of the nugget zone by EDX indicated the Fe compounds in that region.
format Article
author Fadaeifard, Firouz
Gharavi, Farhad
Matori, Khamirul Amin
Daud, Abdul Razak
Mohd Ariffin, Mohd Khairol Anuar
Awang, Mokhtar
spellingShingle Fadaeifard, Firouz
Gharavi, Farhad
Matori, Khamirul Amin
Daud, Abdul Razak
Mohd Ariffin, Mohd Khairol Anuar
Awang, Mokhtar
Investigation of microstructure and mechanical properties of friction stir lap welded AA6061-T6 in various welding speeds
author_facet Fadaeifard, Firouz
Gharavi, Farhad
Matori, Khamirul Amin
Daud, Abdul Razak
Mohd Ariffin, Mohd Khairol Anuar
Awang, Mokhtar
author_sort Fadaeifard, Firouz
title Investigation of microstructure and mechanical properties of friction stir lap welded AA6061-T6 in various welding speeds
title_short Investigation of microstructure and mechanical properties of friction stir lap welded AA6061-T6 in various welding speeds
title_full Investigation of microstructure and mechanical properties of friction stir lap welded AA6061-T6 in various welding speeds
title_fullStr Investigation of microstructure and mechanical properties of friction stir lap welded AA6061-T6 in various welding speeds
title_full_unstemmed Investigation of microstructure and mechanical properties of friction stir lap welded AA6061-T6 in various welding speeds
title_sort investigation of microstructure and mechanical properties of friction stir lap welded aa6061-t6 in various welding speeds
publisher Asian Network for Scientific Information
publishDate 2013
url http://psasir.upm.edu.my/id/eprint/30349/1/Investigation%20of%20microstructure%20and%20mechanical%20properties%20of%20friction%20stir%20lap%20welded%20AA6061.pdf
_version_ 1819295314500124672
score 13.4562235

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