EDM machining is a special machining method for removing conductive materials by means of electric corrosion induced by pulse discharge between two poles immersed in working fluid.

In the process of mold manufacturing, the maximum precision of edm can reach +/ -- 0.005mm surface roughness can reach the mirror level.Traditional machining can not be processed by the station, generally can be completed by edm.Discharge station can be a variety of large plastic mold cavity, can also be 0.1MM width of the hole, small groove.