A comparative analysis of friction stir and tungsten inert gas dissimilar AA5082-AA7075 butt welds

Ratnesh Kumar; Gaurav Kumar; Abhijit Roy; Ravi Shankar Sinha; S.M. Mozammil Hasnain; Om Prakash; Asim Ahmad

Materials Science for Energy Technologies (Jan 2022)

A comparative analysis of friction stir and tungsten inert gas dissimilar AA5082-AA7075 butt welds

Ratnesh Kumar,
Gaurav Kumar,
Abhijit Roy,
Ravi Shankar Sinha,
S.M. Mozammil Hasnain,
Om Prakash,
Asim Ahmad

Affiliations

Ratnesh Kumar: Department of Mechanical Engineering, Birla Institute of Technology, Mesra, Ranchi 835215, India
Gaurav Kumar: Department of Mechanical Engineering, KK University, Biharsharif 803115, India; Corresponding author.
Abhijit Roy: Department of Mechanical Engineering, Budge Budge Institute of Technology, Kolkata 700137, India
Ravi Shankar Sinha: Department of Mechanical Engineering, Budge Budge Institute of Technology, Kolkata 700137, India
S.M. Mozammil Hasnain: Department of Mechanical Engineering, KK University, Biharsharif 803115, India
Om Prakash: Department of Mechanical Engineering, Birla Institute of Technology, Mesra, Ranchi 835215, India
Asim Ahmad: Faculty of Engineering and Applied Sciences, Usha Martin University, Ranchi 835103, India

Journal volume & issue: Vol. 5
pp. 74 – 80

Abstract

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The aluminium alloys AA5082 and AA7075 were welded using friction stir welding (FSW) and tungsten inert gas (TIG) welding. The effect of these two (FSW and TIG) welding processes on the tensile and fatigue properties of dissimilar AA5082-AA7075 butt welded joints were studied. The S-N curve for both, FSW and TIG, joints were established. The results exhibited that the tensile and fatigue properties of dissimilar FSW welded butt joints are better than those of dissimilar TIG welded butt joints. The fatigue strength for FSWed and TIG welded joint is determined as 40 MPa for 106 cycles and 30 MPa for 105 cycles of fatigue life, respectively. The micro-hardness of the joints is also studied for both joints. The hardness for TIG joint is lower than the FSWed joint in the welded zone.

Published in Materials Science for Energy Technologies

ISSN: 2589-2991 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials; Technology: Mechanical engineering and machinery: Energy conservation
Website: https://www.keaipublishing.com/en/journals/materials-science-for-energy-technologies/

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