Abstract
Electrical Discharge Machining (EDM), a ‘non-traditional machining process’, has been replacing drilling, milling, grinding and other traditional machining operations and is now a well-established machining operation in many manufacturing industries throughout the world. Modern ED machinery is capable of machining geometrically complex or hard material components, which are precise and difficult to machine such as heat treated tool steels, composites, super alloys, ceramics, etc. This paper reports the results of an experimental investigations carried out to study the effects of machining parameters such as pulsed current on material removal rate, electrode wear and diameter overcut in electrical discharge machining of the work material was machined using Copper electrodes with paraffin, commercial grade EDM oil, mixture of kerosene and paraffin and mixture of kerosene, paraffin, aluminium powder dielectric media by varying the pulse current at straight polarity.
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