1. Overview of CNC Machining Based on the development of a milling machine automatic processing equipment, the two processing technology is basically the same, the structure is similar. CNC milling machine with cutter base is called machining center. 2. The scope of function of CNC Machining Good adaptability and flexibility in processing, and can process parts with particularly complex contour shape or difficult to control size.High processing precision, stable and reliable processing quality, numerical control device pulse equivalent is generally 0.001mm, high precision numerical control system can be up to 0.5 m, numerical control processing also avoid operator error.Production automation degree is high, can reduce the labor intensity of the operator.Conducive to production management automation. 3. Classification of CNC Processing in the factory There are two kinds of CNC in the factory: Ordinary CNC: less than 8000 RPM, can be a large tool, suitable for milling,...