EDM & Wire EMD machining process that uses a discharge electrode (EDM electrode) with a specific geometry to burn out the geometry of the electrode on a metal (conductive) part, usually applied to manufacture mold, now most of complex geometries parts with highly precision parts will use such machining process also. Such as the parts with deep groove structure, vertical structure, 3D curved surface, superhard materials and so on. Particularly suitable to process the parts with thin-walled, elastic, low-rigidity, micro-small holes, special-shaped small holes, deep small holes.