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  Scopus ID: 21100926589

Enhancing Electrical Discharge Machining Performance for AA6061-WC Composites Fabricated by Powder Metallurgy

Arunkumar Anbazhagan, Hemanth Raju Thippeswamy, Jaya Christiyan Kumaravel Grace Jesy Bai, Murugesan Sivasamy Maharajan, Ajith Kumar Dhayalan, Balachandra Parameshwarappa and Satishkumar Palanisamy

Abstract

In this study, the effects of Electrical Discharge Machining (EDM) on an Aluminum (AA6061) Metal Matrix Composite (MMC) reinforced with tungsten carbide are examined. Poor surface roughness (SR) and a slower metal removal rate (MRR) are experienced during conventional machining of an MMC. Therefore, EDM is the best alternative method for cutting complex shapes in MMC. In this experiment, Aluminum (AA6061) with WC added in three different concentrations was used (i.e., 3%, 6% and 9%). While maintaining a constant dielectric cleaning pressure, applied voltage, and electrode feed rate, machining procedures are accomplished by modulating the pulse on time (A), pulse off time (B), and peak current (C). Taguchi methods are used to optimize the parameters. It has been determined that using a 3% WC reinforcement increases metal removal rate while decreasing surface roughness. It is also found that the A and C parameters have a more significant effect on the MRR and SR.

Published on: November 03, 2023
doi: 10.17756/nwj.2023-s3-157
Citation: Anbazhagan A, Thippeswamy HR, Jesy Bai JCKG, Maharajan MS, Dhayalan AK, et al. 2023. Enhancing Electrical Discharge Machining Performance for AA6061-WC Composites Fabricated by Powder Metallurgy. NanoWorld J 9(S3): S882-S888.

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