Kumari, K and Pradhan, S and Priyadarshini, M and Barua, A (2024) WELD QUALITY APPRAISAL OF AA1050/Cu FSWed JOINTS: A NOVEL HYBRID TAGUCHI-WASPAS-ALIBABA AND THE FORTY THIEVES ALGORITHM. In: Surface Review and Letters .
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Several studies using Friction Stir Welding (FSW) on dissimilar Aluminium and Copper weld configurations and the mechanical and microstructure characteristics, as well as the identification of intermetallic phases that appear in the weld region, have been conducted. Indeed, earlier several studies had been conducted in both lap and butt FSW joint designs. Even so, Al-Cu lap welding has received further attention than butt-welding, which has attracted only a few studies thus far. The studies ended with varying findings and were unable to reach high strengths despite the fact that very few studies addressed tool placement factors. The present investigation starts with butt-welding of AA1050 and pure Cu sheet by employing the FSW procedure. Experimental trails were designed using the L16 array (Taguchi's technique) with distinct combinations of tool spinning speed, tool offset, welding speed, and plunge depth. Weld parameters such as compressive strength (CS), ultimate tensile strength (UTS), and average hardness at nugget zone (AHNZ) were evaluated using three different optimization methodologies, i.e. the WASPAS method, Alibaba and the Forty Thieves algorithm, and the Taguchi-WASPAS method, to find out the best weld constraint arrangement for maximizing the welded joint mechanical characteristics. ANOVA test was also conducted, which revealed that welding speed is the most significant and influential FSW factor for Al-Cu butt-welding using FSW. Finally, confirmatory tests were piloted to check the consistency of the predicted FSW parameters. © 2024 World Scientific Publishing Company.
| Item Type: | Journal Article |
|---|---|
| Publication: | Surface Review and Letters |
| Publisher: | World Scientific |
| Additional Information: | The copyright for this article belongs to The Publisher. |
| Keywords: | Compressive strength; Copper alloys; Fracture mechanics; Heat affected zone; Linear programming; Machine tool attachments; Mercury amalgams; Nonlinear programming; Rockwell hardness; Taguchi methods; Tensile strength, Aa1050; Alibaba and the forty thief algorithm; Friction-stir-welding; MCDM optimization; Mechanical characteristics; Optimisations; Taguchi; WASPAS method; Weld quality; Welding speed, Butt welding |
| Department/Centre: | Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) |
| Date Deposited: | 07 Dec 2024 17:10 |
| Last Modified: | 07 Dec 2024 17:10 |
| URI: | http://eprints.iisc.ac.in/id/eprint/87059 |
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