CNC, also known as computer gong, CNCCH, or CNC milling machine, is a new type of machining technology in which the main task is to develop machining programs, converting manual work into computer programming. The parts produced by CNC punching machines have stable quality, high machining accuracy, and high repeatability. CNC machining can produce parts with complex shapes that cannot be completed by manual machining. CNC machining technology has been widely promoted, and the most common CNC machining methods in typical machining workshops include CNC milling, CNC turning, and CNC EDM wire cutting.