processingdetails

Electric Discharge

Electric discharge machining (EDM), also referred as spark machining, spark eroding, burning, die sinking or wire erosion, is a manufacturing process whereby a desired shape is obtained using electrical discharges (sparks). The sinker EDM process utilizes an electrically charged electrode (EDM electrode) that is configured to a specific geometry to burn the geometry of the electrode into a metal (conductive) component. The sinker EDM process is commonly used in the production of dies and molds. Sinker EDM machining is typically performed by machine shops.In the process of EDM,the material is removed from the workpiece by a series of rapidly recurring current discharges between two electrodes, separated by a dielectric liquid and subject to an electric voltage. One of the electrodes is called the tool-electrode, or simply the ‘tool’ or ‘electrode’, while the other is called the workpiece-electrode, or ‘workpiece’.