Electrode Tool Wear Analysis Under Various Cutting Parameters In The Die Sinking Electrical Discharge Machine (EDM)

Zariyanti, Paijoo (2007) Electrode Tool Wear Analysis Under Various Cutting Parameters In The Die Sinking Electrical Discharge Machine (EDM). Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The EDM removes workpiece by an electrical spark erosion process. The shape of the electrode determines the shape of the workpiece owing to the electrode being sunk into the workpiece. Electrode wear is a serius drawback in EDM process, this is because each spark discharge removes material not only from the workpiece but also from the electrode. Therefore, proper selection of the machining parameters can result in better machining performance, for example EWR, MRR and Surface Roughness. The rate of electrode tool wear depends on a number of factors associated with the EDM process such as Current, Voltage and Jump Speed. This thesis investigate the EWR and characteristic of electrode wear under several machining parameters (current, voltage and jump speed) of copper electrode. The DOE were used to find the significant machining parameter that most influence the EWR. Experimental result indicates that IP (Current) and V (Voltage) were the most significant factor that effect the EWR.

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