Investigation of RC Type Electrical Discharge Machining on ASSAB 618 Steel Using Copper Electrode

Muhammad Zulhisham Ahmed Zaki; AZUDDIN BIN MAMAT

doi:10.4028/www.scientific.net/AMM.315.30

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 315Investigation of RC Type Electrical Discharge...

Investigation of RC Type Electrical Discharge Machining on ASSAB 618 Steel Using Copper Electrode

Abstract:

This paper presents the investigation on Electrical Discharge Machining (EDM) on ASSAB 618 steel using copper electrode. The sparking power was generated using Resistor Capacitor (RC) Circuit and not usual Transistor Pulse Generator Circuit. The performance of the electrodes in the EDM RC circuit was evaluated based on the achieved surface roughness with respect to material removal rate (MRR) and electrode wear ratio (EWR). In this study, investigations have been conducted with surface finish at different discharge energy output. It was found that the surface characteristics are dependent mostly on the discharge energy during machining. The fine finish electrical discharge machining requires minimization of the discharge energy supplied into the gap. In addition, the surface finish was found to be influenced greatly by the electrical and thermal properties of the electrode material.

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Periodical:

Applied Mechanics and Materials (Volume 315)

Pages:

30-34

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.315.30

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Online since:

April 2013

Authors:

Muhammad Zulhisham Ahmed Zaki, AZUDDIN BIN MAMAT

Keywords:

ASSAB 618 Steel, EWR, MRR, RC-EDM, Roughness

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