Optimization of EDM Machining Characteristics of Reinforced Aluminium Metal Matrix Composites by Taguchi

Year : 2025 | Volume : 13 | Special Issue 06 | Page : 939 951
    By

    Rajkumar Subburathinam,

  • Mohamed Hamdan A,

  • Sathiyalingam Kannaiyan,

  • D. Madesh,

  • Vijayaraj T.,

  1. Assistant Professor, Department of Aeronautical Engineering, KCG College of Technology, Chennai, Tamil Nadu, India
  2. Assistant Professor, Department of Aeronautical Engineering, Nehru Institute of Engineering and Technology, Coimbatore, Tamil Nadu, India
  3. Postdoctoral Researcher, Department of Mechanical Engineering, National Taiwan University of Science and Technology, , Taiwan
  4. Assistant Professor, Department of Aeronautical Engineering, Nehru Institute of Engineering and Technology, Coimbatore, Tamil Nadu, India
  5. Assistant Professor, Department of Aeronautical Engineering, KCG College of Technology, Chennai, Tamil Nadu, India

Abstract

Aluminium alloys metal matrix composites (AMMC) play a vital role in various industries, such as aerospace and automobiles. This study investigates the machining characteristics of AL8079 – based composites reinforced with 15 wt. % TiB₂ and 5 wt. % MoS₂ using Electrical Discharge Machining (EDM). The machining process was optimized using the L9 orthogonal array (OA) Taguchi – based design of experiments, and input parameters were considered at three levels, which included pulse – duration (Ton) (100 µs, 200 µs, and 300 µs), current (A) (4 amps,6 amps, and 8 amps), and pulse – interval (Toff) (40 µs, 60 µs, and 80 µs). The response parameters for optimization were metal removal rate (MRR) and Tool Wearing Rate (TWR). The EDM machining was conducted using copper electrodes of 10 mm diameter with kerosene as a dielectric fluid employed during the process. The optimization revealed that high current (8 A), high pulse – duration (Ton), (300 µs), and low pulse-interval (Toff) (40 µs) contributed to better MRR with contributions of 41.94%, 34.8%, and 23.% respectively. The low current (4 A), low pulse – duration (100 µs), and high pulse – interval (Toff) (40 µs), which produce lower TWR with contributions of 55.85%, 29.68%, and 14.% respectively.

Keywords: AL8079, TiB₂, MoS₂, Taguchi method, Electrical Discharge Machining (EDM)

[This article belongs to Special Issue under section in Journal of Polymer & Composites (jopc)]

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How to cite this article:
Rajkumar Subburathinam, Mohamed Hamdan A, Sathiyalingam Kannaiyan, D. Madesh, Vijayaraj T.. Optimization of EDM Machining Characteristics of Reinforced Aluminium Metal Matrix Composites by Taguchi. Journal of Polymer & Composites. 2025; 13(06):939-951.
How to cite this URL:
Rajkumar Subburathinam, Mohamed Hamdan A, Sathiyalingam Kannaiyan, D. Madesh, Vijayaraj T.. Optimization of EDM Machining Characteristics of Reinforced Aluminium Metal Matrix Composites by Taguchi. Journal of Polymer & Composites. 2025; 13(06):939-951. Available from: https://journals.stmjournals.com/jopc/article=2025/view=235281


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Special Issue Subscription Original Research
Volume 13
Special Issue 06
Received 22/07/2025
Accepted 14/08/2025
Published 26/11/2025
Publication Time 127 Days
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