Determination of Optimum Process Parameters and Residual Stress in Friction Welding of Thixocast A356 Aluminum Alloy

Singh, SK and Chattopadhyay, K and Dutta, P (2020) Determination of Optimum Process Parameters and Residual Stress in Friction Welding of Thixocast A356 Aluminum Alloy. In: Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science .

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Abstract

The quest of automobile industries for weight reduction and enhancement of the mechanical strength of components has been a major incentive for new manufacturing technologies such as thixocasting. It is therefore important that the welded joints of such components exhibit adequate strength and formability. The present investigation is on optimization of process parameters to achieve better weld quality obtained in friction-welded joints of thixocast A356 aluminum alloy. The optimum combination of welding parameters is obtained by using the analysis of the signal-to-noise (S/N) ratio based on the Taguchi method. Joint strength higher than the parent material strength is achieved with an optimum set of friction-welding parameters. In addition, residual stress analysis is carried out both experimentally and numerically. Comparisons between the experimental and numerical residual stresses are in good agreement with each other. The residual stress obtained is of low magnitude and compressive in nature. © 2020, The Minerals, Metals & Materials Society and ASM International.

Item Type:	Journal Article
Publication:	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Publisher:	Springer
Additional Information:	The copyright of this article belongs to Springer
Keywords:	Automotive industry; Friction; Friction welding; Residual stresses; Rheocasting; Signal analysis; Signal to noise ratio; Stress analysis; Taguchi methods; Welds, A-356 aluminum alloy; Friction-welded joints; Manufacturing technologies; Optimization of process parameters; Optimum combination; Process parameters; Signal to noise (S/N) ratios; Welding parameters, Aluminum alloys
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	11 Nov 2020 07:30
Last Modified:	11 Nov 2020 07:30
URI:	http://eprints.iisc.ac.in/id/eprint/66628

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