Title: Effect of process parameters on the mechanical behaviour of friction stir welded 5083 and 6061 T6 aluminium alloys

Authors: R. Raja; Sabitha Jannet

Addresses: Mechanical Engineering Department, Karunya Institute of Technology and Sciences, Coimbatore 641114, Tamilnadu, India ' Mechanical Engineering Department, Karunya Institute of Technology and Sciences, Coimbatore 641114, Tamilnadu, India

Abstract: Aluminium alloys are a significant material for research in joining process due to their applications in shipbuilding, aircraft, and automobile industries. In this study, a 31-run central composite design has been used to run the experiment and reduce errors. The mathematical model was developed for ultimate tensile strength, elongation and wear and model fitness was analysed using ANOVA. The relationship also revealed the percentage effect of various process parameters on the mechanical properties. The microhardness tests revealed the harness in the welded zones. The process parameters had a profound effect on the mechanical properties of the welded joints. The micro hardness in the welded joints was lower compared to the base metals. [Submitted 25 March 2017; Accepted 8 August 2019]

Keywords: friction stir welding; central composite design; tensile strength; elongation; process parameters; mathematical model; wear rate; microhardness.

DOI: 10.1504/IJMR.2021.115556

International Journal of Manufacturing Research, 2021 Vol.16 No.2, pp.135 - 153

Accepted: 08 Aug 2019
Published online: 09 Jun 2021 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article