Open Access

ARTICLE

An Experimental Study and Analysis of Different Dielectrics in Electrical Discharge Machining of Al 6063 Alloy

B. MOULIPRASANTH^A, P. HARIHARAN^B

a,b Department of Manufacturing Engineering, CEG, Anna University, Chennai, India.

* Corresponding Author: e-mail:

Journal of Polymer Materials 2019, 36(4), 351-369. https://doi.org/10.32381/JPM.2019.36.04.5

Abstract

Electrical discharge machining is a non-traditional machining processes in which it is based upon thermal and electrical energy source as an interval energy pulse discharge in-between the work piece and tool electrode so as to remove the material. A systematical investigation of melting and vaporising of aluminium to find the output responses such as Material removal rate (MRR), Electrode wear rate (R_a), and Surface finish (EWR) in EDM using two different dielectrics was conducted as experimental work. The working fluids are Polyethylene glycol (PEG 600) and kerosene. It is the hour of need to get the maximum MRR and surface finish with minimum EWR for any material. The paper focuses on the effect of polymer based dielectric machining the aluminium alloy EDM. The dielectrics enact a great role in production and its influence on environmental aspects should also be considered. These dielectric fluids are used in machining an aluminium alloy 6063 using copper electrode and they are compared for their MRR, EWR, and R_a . Taguchi method is used for analysing the results of two different dielectrics that carried with the help of Minitab software.

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Keywords

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