An Experimental Investigation on the Material Removal Rate and Surface Roughness of a Hybrid Aluminum Metal Matrix Composite (Al6061/SiC/Gr)

Mandeep Singh; Harish Kumar Garg; Sthitapragyan Maharana; Anchal Yadav; Rasmeet Singh; Pragyansu Maharana; Tien V. T. Nguyen; Sudesh Yadav; M. K. Loganathan

doi:10.3390/met11091449

Metals (Sep 2021)

An Experimental Investigation on the Material Removal Rate and Surface Roughness of a Hybrid Aluminum Metal Matrix Composite (Al6061/SiC/Gr)

Mandeep Singh,
Harish Kumar Garg,
Sthitapragyan Maharana,
Anchal Yadav,
Rasmeet Singh,
Pragyansu Maharana,
Tien V. T. Nguyen,
Sudesh Yadav,
M. K. Loganathan

Affiliations

Mandeep Singh: School of Mechanical and Mechatronic Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
Harish Kumar Garg: Department of Mechanical Engineering, D.A.V. University Jalandhar, Jalandhar 144001, India
Sthitapragyan Maharana: School of Mechanical and Mechatronic Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
Anchal Yadav: School of Chemistry, Monash University, Clayton, VIC 3168, Australia
Rasmeet Singh: Dr. S.S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh 160014, India
Pragyansu Maharana: School of Mechanical and Mechatronic Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
Tien V. T. Nguyen: Industrial University of Ho Chi Minh City, Ho Chi Minh City 70000, Vietnam
Sudesh Yadav: Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
M. K. Loganathan: Department of Mechanical Engineering, The Assam Kaziranga University, Assam 785006, India

DOI: https://doi.org/10.3390/met11091449
Journal volume & issue: Vol. 11, no. 9
p. 1449

Abstract

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The objective of this paper was to determine the optimum process parameters of an electric discharge machine while machining a new hybrid aluminum metal matrix composite. In this study, a new hybrid aluminum metal matrix composite was prepared, with silicon carbide and graphite particles used as reinforcements, with the help of the stir casting method. The selected electric discharge machining parameters in this study were peak current (I), voltage (V), pulse-on time (Ton), and tool material, while the response parameters were material removal rate and surface roughness. To machine the fabricated samples, two different types of tool materials (copper and brass) were used as electric discharge machine electrodes, and each had a diameter (Ø) of 12.0 mm. The optimal settings of the electric discharge machining parameters were determined through experiments planned, conducted, and analyzed using the Taguchi (L18) technique. An analysis of variance and confirmatory tests were used to check the contribution of each machining parameter. It was found that the material removal rate increased with the increase in pulse-on time and pulse current, whereas the material removal rate decreased with the increase in voltage. On the other hand, reduced surface roughness could only be achieved when current, voltage, and pulse duration were low. It was also found that the selected electric discharge machining electrodes had a significant effect on both the material removal rate and the surface roughness.

Published in Metals

ISSN: 2075-4701 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Mining engineering. Metallurgy
Website: http://www.mdpi.com/journal/metals

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