Abstract
Electrical Discharge Machining (EDM) is widespread Nontraditional machining (NTM) Processes for manufacturing complicated geometry or very hard metals parts that are difficult to machine by traditional machining operations. Electrical discharge machining is a material removal rate (MRR) process characterized by using electrical discharge erosion. This paper discusses the optimal parameters of EDM on high-speed steel (HSS) AISI M2 as a workpiece using copper and brass as an electrode. The input parameters used for experimental work are Current (10, 24 and 42 A), Pulse duration (100, 150 and 200 µs), and Pulse pause-Time (4,12, and 25 µs) that effect on the material removal rate (MRR), and Electrode Wear Rate(EWR). A Minitab (17) software environment to adopt the Full Factorial Method method to analyze the effect of input on the response of EDM. The results showed that the higher value of MRR and the lower value of EWR offered via the copper electrode. The most influential factor that effect the process response (MRR, and EWR) is pulse current.
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