Current Pulse Generated by Spark of Electrical Discharge Machining (EDM)

Electrical Discharge Machining (EDM) is a process that uses electrical discharges to erode electrically conductive material where the electrode and workpiece do not touch. Spark between electrode and workpiece in the EDM process produced magnetic fields. The magnetic fields is found to have an effect on debris circulation in the gap of EDM, so it can decrease the abnormal electrical discharge. An electric current has an effect on the magnetic field produced. EDM uses the RC-generator configuration, so it is able to produce greater currents. This paper presents the calculation current pulse generated by spark of EDM. This calculation can be used to predict peak currents from EDM pulses. Predict peak current is used to find out the maximum magnetic field and determine the maximum current rating of a component. Pulse current calculation can use the equation that has been stated.