3,According to the relative movement between the tool electrode and the workpiece, it can be roughly divided into EDM forming, wire cutting, EDM grinding, EDM synchronous conjugate rotary machining, EDM high-speed small hole machining, EDM surface strengthening and Six categories including lettering and processing.
(1)EDM
The tool electrode is usually a copper or graphite shaped electrode, which can be produced in any shape, and the processed shape is a corresponding cavity.
(2/)Wire EDM processing
Wire EDM processing is divided into slow wire cutting and fast wire cutting. Generally, electrode wires with a diameter of 0.1mm~0.3mm are used to process through-grained parts, which can be punch parts or concave mold holes.
