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Influence of friction stir welding parameters on the tribological behavior of dissimilar aluminum alloy joint

Sivaselvan S. (Department of Mechanical Engineering, NSN College of Engineering and Technology, Karur, India)
Natarajan M. (Department of Mechanical Engineering, Adithya Institute of Technology, Coimbatore, India)
Devadasan S.R. (Department of Production Engineering, PSG College of Technology, Coimbatore, India)
Sivaram N.M. (Department of Mechanical Engineering, National Institute of Technology Puducherry, Karaikal, India)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 5 January 2023

8

Abstract

Purpose

Aluminum alloys are applicable in marine and aero fields. Alloys AA5083 and AA6061 are aluminum alloys with different chemical and physical properties. Combination of two dissimilar materials could result in enhanced strength. Generally, dissimilar aluminum alloy joint is made by friction stir welding (FSW) to achieve improved physical properties compared with the parent alloys. The purpose of this research is to develop a new FSW dissimilar material with enhanced properties using AA5083 and AA6061 alloys.

Design/methodology/approach

In this research, FSW joint was made for butt joint configuration using AA5083 and AA6061 aluminum alloys. Cylindrical pin with threaded profile was used to perform the joint. The tool tilting angle was maintained as constant, and the tool rotational speed and the welding speed were varied. Wear performance and mechanical strength of the joint were analyzed.

Findings

The results revealed that the increase of tool rotational speed led to poor wear performance, whereas increase of welding speed showed a better wear performance. Further, the prepared joint was analyzed for different wear parameters such as sliding velocity and applied load. The results displayed that the increase of sliding velocity exhibited low wear rate and the increase of load showed high wear rate.

Originality/value

This work is original and deals with the wear performance of AA5083–AA6061 joint at different tool rotational and welding speeds.

Keywords

Citation

S., S., M., N., S.R., D. and N.M., S. (2023), "Influence of friction stir welding parameters on the tribological behavior of dissimilar aluminum alloy joint", Industrial Lubrication and Tribology, Vol. ahead-of-print No. ahead-of-print. https://doi.org/10.1108/ILT-08-2022-0240

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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