Machining consists in the precise removal of material from a block or blank to attain geometric objectives. It is also know as “substractive manufacturing”. Machining involves a cutting tool and controlled movements systems (man-power or more commonly now computer numerical control : CNC) for the part and tool. The speed of the cutting operation and the speed of the part in movement combine to mechanically remove material chips. Computer-aided manufacturing (CAM) programs these movements (for example on 5 axes). Machining operations include turning, drilling and milling.
CNC machinists apply CAM by selecting, measuring and preparing Tools, by securing the part on to the CNC machining center, and by monitoring operations via interface software.