CNC processing refers to processing using a CNC processing tool. The CNC index control machine is programmed by CNC processing language, usually G code. CNC processing G code language tells what kind of Descartes position coordinates are used for the processing tools of CNC machine tools, and the feed speed and spindle speed of the tools are controlled, as well as the tools such as tool converters and cooler. CNC processing phase opposite manual processing has great advantages. For example, the parts produced by CNC processing are very accurate and can be heavy; CNC machining can produce parts with complex shapes that cannot be completed by manual processing. CNC machining technology has been generally promoted. Most of the machining workshops have CNC machining capabilities. The most common CNC processing methods in typical machine processing workshops include CNC milling, CNC vehicles and CNC EDM wire cutting (electrostatic cutting).