Title: Machining of composite material with electric discharge machining using abrasives in dielectric medium

Authors: Sunny Bhatti

Addresses: Department of Mechanical Engineering, Modern Group of Colleges, Mansar-Hajipur Road, Mukerian (144306), Punjab, India

Abstract: Electric discharge machine (EDM) is effective tool for machining materials which are problematic to machine with conventional machining methods. It is based on thermo electric energy between the work piece and an electrode. The present work investigates the EDM of composite (AL-SiC) material. The tubular copper electrode utilized for concentric flushing of silicon carbide (SiC) abrasive suspended in dielectric medium. In this paper find correlation among the parameters are surface roughness, material removal rate, tool wear rate and working parameters of machining EDM required to determine for SiC abrasive powder. For the design of experiment Taguchi method is adopt. The SEM of the machined surface is also performed to survey the surface topography. The micro graphs determine that the SiC particles are implanted in the recast layer of the machined surface results in uniform properties of base materials phase and the machined surface.

Keywords: EDM; silicon carbide; SiC; tool wear rate; TWR; scanning electron microscope; SEM; material removal rate; MRR; powder.

DOI: 10.1504/IJPTECH.2020.112689

International Journal of Precision Technology, 2020 Vol.9 No.4, pp.271 - 278

Received: 28 Jul 2019
Accepted: 26 Nov 2019
Published online: 28 Jan 2021 *

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