What is numerical control? Can someone tell me more about it?

Numerical control is the abbreviation of numerical control, and numerical control technology is a method to control mechanical movement and machining process by using digital information.

The early numerical control system is called hard numerical control, which consists of hardware circuits. After1970s, hardware circuit components were gradually replaced by special computers, which were called computer numerical control systems. Usually, dedicated computers and interface circuits are used to control the actions of multiple numerical control devices. So now the numerical control is generally CNC (Computer Numerical Control), and the concept of NC is rarely used again.

NC lathe feed machining path refers to the path that the lathe tool passes through the tool alignment point (or the fixed origin of the machine tool) until it returns to this point and ends the machining program, including cutting machining path and non-cutting idle travel path such as tool cutting and cutting.

The feed route of finishing is basically along the outline of its parts in turn. Therefore, the key to determine the feed route is to determine the feed route of rough machining and idle stroke.