Feasibility Study on Joining Dissimilar Aluminum Alloys AA6061 and AA7075 by Tungsten Inert Gas (TIG)

The aim of this paper is to study the feasibility of welding dissimilar aluminum alloys AA6061 and AA7075 using different types of filler metals which are ER4043 and ER5356. The tungsten inert gas (TIG) welding method was used to butt joint these alloys. The effect of ER4043 (Si-rich) and ER5356...

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Main Authors:	M., Ishak, Nur Fakhriah, Mohd Noordin, L. H., Shah
Format:	Article
Language:	English English
Published:	Penerbit Universiti Teknologi Malaysia 2015
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/6755/ http://umpir.ump.edu.my/id/eprint/6755/ http://umpir.ump.edu.my/id/eprint/6755/ http://umpir.ump.edu.my/id/eprint/6755/1/Feasibility_study_on_joining_dissimilar_aluminum_alloys_AA6061_and_AA7075_by_Tungsten_Inert_Gas_%28TIG%29.PDF http://umpir.ump.edu.my/id/eprint/6755/3/fkm-2015-mahadzir-Feasibility%20Study%20on%20Joining.pdf

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spelling	ump-67552016-01-06T02:22:49Z http://umpir.ump.edu.my/id/eprint/6755/ Feasibility Study on Joining Dissimilar Aluminum Alloys AA6061 and AA7075 by Tungsten Inert Gas (TIG) M., Ishak Nur Fakhriah, Mohd Noordin L. H., Shah TA Engineering (General). Civil engineering (General) The aim of this paper is to study the feasibility of welding dissimilar aluminum alloys AA6061 and AA7075 using different types of filler metals which are ER4043 and ER5356. The tungsten inert gas (TIG) welding method was used to butt joint these alloys. The effect of ER4043 (Si-rich) and ER5356 (Mg-rich) on weldability of the joint were studied through visual appearance, microstructures and hardness. It was found that, welding using filler ER5356 produced deeper penetration compared to filler ER4043. The depth of penetration obtained using filler ER5356 was 1.74 mm, while only 0.9 mm of penetration was obtained using ER4043. Microstructures at different zones of dissimilar TIG joints such as the fusion zone (FZ), the partially melted zone (PMZ) and the heat affected zone (HAZ) were identified. The grain size at FZ from filler ER5356 samples was finer compared to filler ER4043 which was 11.4 µm and 19.5 µm, respectively. The average hardness welding value of filler ER5356 samples was higher compared to filler ER4043 samples, which were 100HV and 86HV, respectively at HAZ of AA 6061, 110HV and 88HV, respectively at FZ, while 113HV and 85HV, respectively at HAZ of AA 7075. It can be concluded that TIG welding using the ER5356 filler yields better joint compared to ER4043. Penerbit Universiti Teknologi Malaysia 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/6755/1/Feasibility_study_on_joining_dissimilar_aluminum_alloys_AA6061_and_AA7075_by_Tungsten_Inert_Gas_%28TIG%29.PDF application/pdf en http://umpir.ump.edu.my/id/eprint/6755/3/fkm-2015-mahadzir-Feasibility%20Study%20on%20Joining.pdf M., Ishak and Nur Fakhriah, Mohd Noordin and L. H., Shah (2015) Feasibility Study on Joining Dissimilar Aluminum Alloys AA6061 and AA7075 by Tungsten Inert Gas (TIG). Jurnal Teknologi (Sciences and Engineering), 75 (7). pp. 79-84. ISSN 0127-9696 (print); 2180-3722 (online) http://dx.doi.org/10.11113/jt.v75.5177 DOI: 10.11113/jt.v75.5177
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) M., Ishak Nur Fakhriah, Mohd Noordin L. H., Shah Feasibility Study on Joining Dissimilar Aluminum Alloys AA6061 and AA7075 by Tungsten Inert Gas (TIG)
description	The aim of this paper is to study the feasibility of welding dissimilar aluminum alloys AA6061 and AA7075 using different types of filler metals which are ER4043 and ER5356. The tungsten inert gas (TIG) welding method was used to butt joint these alloys. The effect of ER4043 (Si-rich) and ER5356 (Mg-rich) on weldability of the joint were studied through visual appearance, microstructures and hardness. It was found that, welding using filler ER5356 produced deeper penetration compared to filler ER4043. The depth of penetration obtained using filler ER5356 was 1.74 mm, while only 0.9 mm of penetration was obtained using ER4043. Microstructures at different zones of dissimilar TIG joints such as the fusion zone (FZ), the partially melted zone (PMZ) and the heat affected zone (HAZ) were identified. The grain size at FZ from filler ER5356 samples was finer compared to filler ER4043 which was 11.4 µm and 19.5 µm, respectively. The average hardness welding value of filler ER5356 samples was higher compared to filler ER4043 samples, which were 100HV and 86HV, respectively at HAZ of AA 6061, 110HV and 88HV, respectively at FZ, while 113HV and 85HV, respectively at HAZ of AA 7075. It can be concluded that TIG welding using the ER5356 filler yields better joint compared to ER4043.
format	Article
author	M., Ishak Nur Fakhriah, Mohd Noordin L. H., Shah
author_facet	M., Ishak Nur Fakhriah, Mohd Noordin L. H., Shah
author_sort	M., Ishak
title	Feasibility Study on Joining Dissimilar Aluminum Alloys AA6061 and AA7075 by Tungsten Inert Gas (TIG)
title_short	Feasibility Study on Joining Dissimilar Aluminum Alloys AA6061 and AA7075 by Tungsten Inert Gas (TIG)
title_full	Feasibility Study on Joining Dissimilar Aluminum Alloys AA6061 and AA7075 by Tungsten Inert Gas (TIG)
title_fullStr	Feasibility Study on Joining Dissimilar Aluminum Alloys AA6061 and AA7075 by Tungsten Inert Gas (TIG)
title_full_unstemmed	Feasibility Study on Joining Dissimilar Aluminum Alloys AA6061 and AA7075 by Tungsten Inert Gas (TIG)
title_sort	feasibility study on joining dissimilar aluminum alloys aa6061 and aa7075 by tungsten inert gas (tig)
publisher	Penerbit Universiti Teknologi Malaysia
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/6755/ http://umpir.ump.edu.my/id/eprint/6755/ http://umpir.ump.edu.my/id/eprint/6755/ http://umpir.ump.edu.my/id/eprint/6755/1/Feasibility_study_on_joining_dissimilar_aluminum_alloys_AA6061_and_AA7075_by_Tungsten_Inert_Gas_%28TIG%29.PDF http://umpir.ump.edu.my/id/eprint/6755/3/fkm-2015-mahadzir-Feasibility%20Study%20on%20Joining.pdf
first_indexed	2023-09-18T22:02:48Z
last_indexed	2023-09-18T22:02:48Z
_version_	1777414510484652032

Feasibility Study on Joining Dissimilar Aluminum Alloys AA6061 and AA7075 by Tungsten Inert Gas (TIG)

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