Investigation on Aluminium-Stainless Steel Dissimilar Weld Quality Using Different Filler Metals

Aluminium-stainless steel dissimilar welding processes yields unwanted disadvantages on the weld joint due to the large difference between aluminium-stainless steel sheets melting points and nearly zero solid solubility between these two metals. Aluminium AA6061 and stainless steel SUS304 were lap-w...

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Main Authors:	L. H., Shah, Zetty Akhtar, Abd Malek, M., Ishak
Format:	Article
Language:	English English
Published:	Universiti Malaysia Pahang 2013
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/4050/ http://umpir.ump.edu.my/id/eprint/4050/ http://umpir.ump.edu.my/id/eprint/4050/2/P017.pdf http://umpir.ump.edu.my/id/eprint/4050/3/3_Shah_et_al..pdf

id	ump-4050
recordtype	eprints
spelling	ump-40502016-07-14T07:44:43Z http://umpir.ump.edu.my/id/eprint/4050/ Investigation on Aluminium-Stainless Steel Dissimilar Weld Quality Using Different Filler Metals L. H., Shah Zetty Akhtar, Abd Malek M., Ishak TJ Mechanical engineering and machinery Aluminium-stainless steel dissimilar welding processes yields unwanted disadvantages on the weld joint due to the large difference between aluminium-stainless steel sheets melting points and nearly zero solid solubility between these two metals. Aluminium AA6061 and stainless steel SUS304 were lap-welded by using Metal Inert Gas (MIG) welding with aluminium filler ER5356 (Group 1) and stainless steel filler ER308LSi (Group 2). The effect of welding voltage and type of filler metals used on the weld joints were studied. The welding voltage had significant effect to the welding process, as higher voltage resulted in poorer appearance of the weld joint and leads to defects for both groups, such as porosity and incomplete fusion. The microstructure for Group 1 joints show enrichment of Si particle, which benefited the joint properties as it increases the strength of the metal. The stainless steel substrates that spread into the aluminium side are much more in volume for Group 1 compared to Group 2 joints. Meanwhile, the microstructure of Group 2 joints (using ER308LSi filler) consists of chromium carbide precipitation which yields high hardness value, but brittle structure. The hardness value of the welded seam in Group 1 and Group 2 ranges from 60 to 100 HV and 160 to 230 HV, respectively. The fracture in tensile test yielded the highest tensile strength of 104.4 MPa with aluminium fillers. The tensile strength of Group 1 joints ranging from 47.8 to 104.4 MPa were collectively higher compared to Group 2 joints, between 20.24 to 61.76 MPa. Based on the investigation throughout this study, it can be concluded that the welding voltage of 18 V and aluminium filler ER5356 is the optimum filler in joining dissimilar metal aluminium AA6061 and stainless steel SUS 304 Universiti Malaysia Pahang 2013-07-01 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/4050/2/P017.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/4050/3/3_Shah_et_al..pdf L. H., Shah and Zetty Akhtar, Abd Malek and M., Ishak (2013) Investigation on Aluminium-Stainless Steel Dissimilar Weld Quality Using Different Filler Metals. International Journal of Automotive and Mechanical Engineering (IJAME), 8. pp. 1121-1131. ISSN 1985-9325(Print); 2180-1606 (Online) http://ijame.ump.edu.my/images/Volume_8/3_Shah%20et%20al..pdf
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery L. H., Shah Zetty Akhtar, Abd Malek M., Ishak Investigation on Aluminium-Stainless Steel Dissimilar Weld Quality Using Different Filler Metals
description	Aluminium-stainless steel dissimilar welding processes yields unwanted disadvantages on the weld joint due to the large difference between aluminium-stainless steel sheets melting points and nearly zero solid solubility between these two metals. Aluminium AA6061 and stainless steel SUS304 were lap-welded by using Metal Inert Gas (MIG) welding with aluminium filler ER5356 (Group 1) and stainless steel filler ER308LSi (Group 2). The effect of welding voltage and type of filler metals used on the weld joints were studied. The welding voltage had significant effect to the welding process, as higher voltage resulted in poorer appearance of the weld joint and leads to defects for both groups, such as porosity and incomplete fusion. The microstructure for Group 1 joints show enrichment of Si particle, which benefited the joint properties as it increases the strength of the metal. The stainless steel substrates that spread into the aluminium side are much more in volume for Group 1 compared to Group 2 joints. Meanwhile, the microstructure of Group 2 joints (using ER308LSi filler) consists of chromium carbide precipitation which yields high hardness value, but brittle structure. The hardness value of the welded seam in Group 1 and Group 2 ranges from 60 to 100 HV and 160 to 230 HV, respectively. The fracture in tensile test yielded the highest tensile strength of 104.4 MPa with aluminium fillers. The tensile strength of Group 1 joints ranging from 47.8 to 104.4 MPa were collectively higher compared to Group 2 joints, between 20.24 to 61.76 MPa. Based on the investigation throughout this study, it can be concluded that the welding voltage of 18 V and aluminium filler ER5356 is the optimum filler in joining dissimilar metal aluminium AA6061 and stainless steel SUS 304
format	Article
author	L. H., Shah Zetty Akhtar, Abd Malek M., Ishak
author_facet	L. H., Shah Zetty Akhtar, Abd Malek M., Ishak
author_sort	L. H., Shah
title	Investigation on Aluminium-Stainless Steel Dissimilar Weld Quality Using Different Filler Metals
title_short	Investigation on Aluminium-Stainless Steel Dissimilar Weld Quality Using Different Filler Metals
title_full	Investigation on Aluminium-Stainless Steel Dissimilar Weld Quality Using Different Filler Metals
title_fullStr	Investigation on Aluminium-Stainless Steel Dissimilar Weld Quality Using Different Filler Metals
title_full_unstemmed	Investigation on Aluminium-Stainless Steel Dissimilar Weld Quality Using Different Filler Metals
title_sort	investigation on aluminium-stainless steel dissimilar weld quality using different filler metals
publisher	Universiti Malaysia Pahang
publishDate	2013
url	http://umpir.ump.edu.my/id/eprint/4050/ http://umpir.ump.edu.my/id/eprint/4050/ http://umpir.ump.edu.my/id/eprint/4050/2/P017.pdf http://umpir.ump.edu.my/id/eprint/4050/3/3_Shah_et_al..pdf
first_indexed	2023-09-18T21:58:34Z
last_indexed	2023-09-18T21:58:34Z
_version_	1777414244171513856

Investigation on Aluminium-Stainless Steel Dissimilar Weld Quality Using Different Filler Metals

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