CNC machining refers to the machining performed with CNC machining tools. CNC index-controlled machine tools are programmed and controlled by CNC machining language, usually G code.
The CNC machining G code language tells the CNC machine tool which Cartesian position coordinates to use for the machining tool, and controls the tool feed rate and spindle speed, as well as tool changer, coolant and other functions.
CNC machining has great advantages over manual machining. For example, the parts produced by CNC machining are very accurate and repeatable; CNC machining can produce parts with complex shapes that cannot be completed by manual machining.
CNC machining technology has been widely promoted, and most machining workshops have CNC machining capabilities. The most common CNC machining methods in typical machining workshops are CNC milling, CNC turning and CNC EDM wire cutting (Wire EDM).