Parameter investigation and optimization of friction stir welded AA6061/TiO2 composites through TLBO

Prabhu, Subramanya R B and Shettigar, Arun Kumar and Herbert, Mervin A and Rao, Shrikantha S (2021) Parameter investigation and optimization of friction stir welded AA6061/TiO2 composites through TLBO. Welding in the World. ISSN 0043-2288

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Abstract

This paper explicates the joining of AA 6061/TiO2 composites by the friction stir welding (FSW) process. FSW experiments were conducted as per the three factors, three-level, central composite ivy– face-centered design method. Mathematical relationships between the FSW process parameters, namely tool geometry, welding speed, and tool rotational speed, and the output responses such as hardness, yield strength, and ultimate tensile strength were established using response surface methodology. Adequacies of established models were assessed through the analysis of variance method. Further, the paper elucidates the application of the teaching–learning-based optimization (TLBO) algorithm to identify the optimal values of input variables and to obtain an FSW joint with superior mechanical properties. The optimized experimental condition obtained from the TLBO yields an FSW joint with a UTS of 174 MPa, yield strength of 120 MPa, and hardness of 126HV. The study revealed that the result of the TLBO algorithm matched the fndings of the FSW experiments.

Item Type: Article
Uncontrolled Keywords: s AA6061/TiO2 composite · Friction stir welding · Response surface methodology · TLBO algorithm · Optimization
Subjects: Engineering > MIT Manipal > Mechatronics
Depositing User: MIT Library
Date Deposited: 26 Mar 2022 08:42
Last Modified: 26 Mar 2022 08:42
URI: http://eprints.manipal.edu/id/eprint/158466

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