Investigation of Aluminum-Stainless Steel Dissimilar Weld Quality using Different Filler Metals

Aluminum-stainless steel dissimilar welding processes yield unwanted disadvantages in the weld joint due to the large difference between the aluminum-stainless steel sheets' melting points and the nearly zero solid solubility between these two metals. Aluminum AA6061 and stainless steel SUS304...

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Bibliographic Details
Published inInternational journal of automotive and mechanical engineering Vol. 8; pp. 1121 - 1131
Main Authors Shah, L H, Akhtar, Z, Ishak, M
Format Journal Article
LanguageEnglish
Published Kuantan Universiti Malaysia Pahang 01.07.2013
Subjects
Aluminum
Aluminum base alloys
Austenitic stainless steels
Electric potential
Fillers
Voltage
Weight reduction
Welded joints
Welding
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Summary:Aluminum-stainless steel dissimilar welding processes yield unwanted disadvantages in the weld joint due to the large difference between the aluminum-stainless steel sheets' melting points and the nearly zero solid solubility between these two metals. Aluminum AA6061 and stainless steel SUS304 were lap-welded by using Metal Inert Gas (MIG) welding with aluminum filler ER5356 (Group 1) and stainless steel filler ER308LSi (Group 2). The effects of the welding voltage and type of filler metals used on the weld joints were studied. The welding voltage had a significant effect on the welding process, as higher voltage resulted in poorer appearance of the weld joint and led to defects for both groups, such as porosity and incomplete fusion. The tensile strength of Group 1 joints ranging from 47.8 to 104.4 MPa was collectively higher than Group 2 joints, between 20.24 to 61.76 MPa.
Bibliography:ObjectType-Article-1
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ISSN:2229-8649
2180-1606
DOI:10.15282/ijame.8.2013.3.0091