Prabhu, Subramanya R B and Shettigar, Arun Kumar and Herbert, Mervin A and Rao, Srikantha S (2021) Experimental assessment of FSW process to join AA6061/Rutile composite and parametric optimization using TGRA. Engineering Research Express, 3 (3). ISSN 2631-8695

PDF 14293.pdf - Published Version Restricted to Registered users only Download (975kB) | Request a copy

Abstract

Present study is focused on investigating the effect of various friction stir welding (FSW) process variables on AA6061/Rutile composites welding quality. FSW of composites was performed considering tool geometry (Tg), welding speed (Ws) and rotational speed (Ns) as ideal parameters for multi-response optimization. Experiments were designed based on the L9 orthogonal array. Analysis of variance (ANOVA)was utilized to evaluate the effects of these welding process variables on output responses namely hardness and ultimate tensile strength (UTS). Main effects plots were drawn to found out the optimal levels of these process parameters. Multi-response optimization of the welding process has been performed using Taguchi’s grey relational analysis(TGRA). Analysis revealed that welding speed of 90 mm min−1 , a tool with a square pin, and rotational speed of 1000 rpm produced an FSW joint with excellent mechanical properties. Microstructure analysis revealed that refinement in the grain structure and redistribution of reinforced particles helped in improved joint strength

Actions (login required)

View Item