Effects of tool offset and reversed metal flow on mechanical properties of dissimilar friction stir welded T-lap joints between AA7075 and AA5083

The effects of tool offset and the reversed metal flow induced by a double-pass friction stir welding (FSW) on the welding interface characteristics were investigated in a dissimilar thickness T-lap joint between 7075-T651 and 5083-H116 aluminum alloys. The performance of the joint was evaluated by...

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Autores principales:	Hao Dinh DUONG, Masakazu OKAZAKI, Tra Hung TRAN
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2020
Materias:	dissimilar t-lap joint double-pass friction stir welding tool offset reversed metal flow mechanical properties kissing bond defects Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/b5fa5ff6ed7a48e1947f3390c8b2e1a0
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spelling	oai:doaj.org-article:b5fa5ff6ed7a48e1947f3390c8b2e1a02021-11-29T05:52:02ZEffects of tool offset and reversed metal flow on mechanical properties of dissimilar friction stir welded T-lap joints between AA7075 and AA50832187-974510.1299/mej.19-00490https://doaj.org/article/b5fa5ff6ed7a48e1947f3390c8b2e1a02020-01-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/7/1/7_19-00490/_pdf/-char/enhttps://doaj.org/toc/2187-9745The effects of tool offset and the reversed metal flow induced by a double-pass friction stir welding (FSW) on the welding interface characteristics were investigated in a dissimilar thickness T-lap joint between 7075-T651 and 5083-H116 aluminum alloys. The performance of the joint was evaluated by the skin and stringer tensile tests. The experimental results showed that the bonding interface could be improved by applying double-pass welding which the tool was offsetted toward advancing side. An employment of the double-pass welding significantly improved the strength so that the joint efficiency reached about 90% in comparison with the 5083 base metal strength while the tensile strength of the joint produced by the single-pass welding was quite low. The kissing bond defects were found to be the main culprit in the tensile behavior of the T-lap joint. The reversed metal flow and the gap distance between pin and die played a key role in the formation of the welding interface.Hao Dinh DUONGMasakazu OKAZAKITra Hung TRANThe Japan Society of Mechanical Engineersarticledissimilar t-lap jointdouble-pass friction stir weldingtool offsetreversed metal flowmechanical propertieskissing bond defectsMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 7, Iss 1, Pp 19-00490-19-00490 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	dissimilar t-lap joint double-pass friction stir welding tool offset reversed metal flow mechanical properties kissing bond defects Mechanical engineering and machinery TJ1-1570
spellingShingle	dissimilar t-lap joint double-pass friction stir welding tool offset reversed metal flow mechanical properties kissing bond defects Mechanical engineering and machinery TJ1-1570 Hao Dinh DUONG Masakazu OKAZAKI Tra Hung TRAN Effects of tool offset and reversed metal flow on mechanical properties of dissimilar friction stir welded T-lap joints between AA7075 and AA5083
description	The effects of tool offset and the reversed metal flow induced by a double-pass friction stir welding (FSW) on the welding interface characteristics were investigated in a dissimilar thickness T-lap joint between 7075-T651 and 5083-H116 aluminum alloys. The performance of the joint was evaluated by the skin and stringer tensile tests. The experimental results showed that the bonding interface could be improved by applying double-pass welding which the tool was offsetted toward advancing side. An employment of the double-pass welding significantly improved the strength so that the joint efficiency reached about 90% in comparison with the 5083 base metal strength while the tensile strength of the joint produced by the single-pass welding was quite low. The kissing bond defects were found to be the main culprit in the tensile behavior of the T-lap joint. The reversed metal flow and the gap distance between pin and die played a key role in the formation of the welding interface.
format	article
author	Hao Dinh DUONG Masakazu OKAZAKI Tra Hung TRAN
author_facet	Hao Dinh DUONG Masakazu OKAZAKI Tra Hung TRAN
author_sort	Hao Dinh DUONG
title	Effects of tool offset and reversed metal flow on mechanical properties of dissimilar friction stir welded T-lap joints between AA7075 and AA5083
title_short	Effects of tool offset and reversed metal flow on mechanical properties of dissimilar friction stir welded T-lap joints between AA7075 and AA5083
title_full	Effects of tool offset and reversed metal flow on mechanical properties of dissimilar friction stir welded T-lap joints between AA7075 and AA5083
title_fullStr	Effects of tool offset and reversed metal flow on mechanical properties of dissimilar friction stir welded T-lap joints between AA7075 and AA5083
title_full_unstemmed	Effects of tool offset and reversed metal flow on mechanical properties of dissimilar friction stir welded T-lap joints between AA7075 and AA5083
title_sort	effects of tool offset and reversed metal flow on mechanical properties of dissimilar friction stir welded t-lap joints between aa7075 and aa5083
publisher	The Japan Society of Mechanical Engineers
publishDate	2020
url	https://doaj.org/article/b5fa5ff6ed7a48e1947f3390c8b2e1a0
work_keys_str_mv	AT haodinhduong effectsoftooloffsetandreversedmetalflowonmechanicalpropertiesofdissimilarfrictionstirweldedtlapjointsbetweenaa7075andaa5083 AT masakazuokazaki effectsoftooloffsetandreversedmetalflowonmechanicalpropertiesofdissimilarfrictionstirweldedtlapjointsbetweenaa7075andaa5083 AT trahungtran effectsoftooloffsetandreversedmetalflowonmechanicalpropertiesofdissimilarfrictionstirweldedtlapjointsbetweenaa7075andaa5083
_version_	1718407608982831104

Effects of tool offset and reversed metal flow on mechanical properties of dissimilar friction stir welded T-lap joints between AA7075 and AA5083

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