Shenzhen large precision parts machining numerical control machining refers to the machining with numerical control tools. CNC refers to the numerical control machine tool programmed by numerical control processing language, usually G code. The numerical control processing G code language tells the numerical control machine tool what kind of processing tool to use, Cartesian position coordinates, and controls the feed speed and spindle speed of the tool, as well as tool converters, coolants and other functions.

Precision parts processing has great advantages over manual tooling, such as numerical control processing to produce parts that are very accurate and repeatable; numerical control processing can produce parts with complex shapes that cannot be completed by manual processing.

Precision parts processing technology is now widely promoted, most of the machining workshops have numerical control processing capabilities, the most common numerical control processing methods in the typical machining workshop are numerical control milling, numerical control car and numerical control EDM wire cutting (EDM wire cutting).

The tool for numerical control milling is called a numerical control milling machine or a numerical control machining center. The lathe for numerical control turning is called a numerical control turning center. The numerical control machining G code can be manually programmed, but usually the machining workshop uses CAM (Computer-Aided Manufacturing) software to automatically read CAD (Computer-Aided Design) files and generate G code programs to control the numerical control machine tool.