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Hanoi University of Industry, No. 298, CauDien Street, Bac TuLiem District, Hanoi, Vietnam

Department of Mechatronics Engineering, Rajarambapu Institute of Technology, Shivaji University, Sakharale MS-414415, India

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Toan Nguyen Duc

https://orcid.org/0000-0001-9619-4476

School of Mechanical Engineering, Hanoi University of Science and Technology, No. 1 Dai Co Viet Stress, Hai Ba Trung District, Hanoi City 100000, Vietnam

E-mail Address: toan.nguyenduc@hust.edu.vn

Corresponding author.

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https://doi.org/10.1142/S0217979224400198Cited by:1 (Source: Crossref)

This article is part of the issue:

Special Issue: Advances in Novel Materials and Their Applications
Guest Editor: Yun-Hae Kim

Abstract

The pursuit of precision machining in engineering materials has ignited an imperative to advance electrical discharge machining (EDM) techniques. This study is a deep dive into the domain of micro-electrical discharge machining ( $μ$ $μ$ EDM) with a specific focus on the utilization of carbon-coated tool electrodes. The primary objective is to elucidate the influence of carbon-coated electrodes on vital machining parameters, including machining depth (Z coordinate), tool wear rate (TWR) and overcut (OC) in $μ$ $μ$ EDM operations. Moreover, the investigation extends to scrutinizing surface characteristics generated by $μ$ $μ$ EDM with carbon-coated tool electrodes. To enhance performance, carbon-coated tungsten carbide tool electrodes are employed for machining titanium alloy (Ti–6Al–4V) workpieces. The optimization process seeks to identify the optimal combination of process parameters using a Taguchi-DEAR-based multi-response approach. Experimental findings reveal that integrating carbon-coated electrodes significantly improves the $μ$ $μ$ EDM process, leading to enhanced surface performance metrics. Notably, this study identifies specific parameter settings that effectively optimize machining quality indicators. By achieving a voltage of 160V, a capacitance of 10,000pF and a tool rotation of 600RPM, the research contributes valuable insights into the intricate realm of $μ$ $μ$ EDM, highlighting the potential for enhanced surface performance through strategic parameter manipulation.

Keywords:

PACS: 82.45.Fk, 52.80.−s

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