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The electrode used to cut workpiece is wire, and a flushing fluid is sent to workpiece continuously with the electrode. All parts can be precisely cut with the wire erosion method. Stress, fracture resistance and conductivity of wire should be determined according to material to be cut.
Workpiece and electrode are submerged in dielectric liquid, and the cutting is carried out with aid of sparks. In this method, a hundred thousand sparks occur per second. It is a highly preferred method of precision drilling for blind hole drilling.
It is a special method for drilling holes in workpieces. EDM drilling uses a high-pressure, rotating tube electrode with high-pressure washers to ensure fast and precise machining of small deep holes in conductive metals. The small-hole EDM is also used to create microscopic vents for spinners and other applications.