Altron - laser cutting

Wire EDM machining

Electric discharge machining (EDM), is a manufacturing process whereby a desired shape is obtained using current discharges between metal electrodes, separated by a dielectric liquid and subject to an electric voltage. Tool electrode always penetrates the workpiece through and through and thus the process requires drilling the start hole. Alternatively the machining process may begin from the workpiece edge. Since the eroding can be performed at an angle to the workpiece surface this makes possible to machine conical shapes or form different shapes at the workpiece top and then at its bottom. The eroding electrode is usually made of 0,02 to 0,33 mm diameter brass or coated copper wire.

Wire EDM machines furnished with digital high power generators are dedicated to high efficiency machining while keeping the workpiece surface integrity. The EDM machines can easily cut intricate contours, shapes and cavities as well as large dimension workpieces used as press forming dies, moulds, aircraft components or medical industry, etc.