Machining of composite material with electric discharge machining using abrasives in dielectric medium Online publication date: Thu, 28-Jan-2021
by Sunny Bhatti
International Journal of Precision Technology (IJPTECH), Vol. 9, No. 4, 2020
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.
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