Combined machining is currently one of the most widely used machining processes in the field of mechanical engineering worldwide. It is an advanced manufacturing technology. Combined turning and milling involves performing several different machining processes on a single machine tool.

CNC-machined parts are components produced using CNC equipment. CNC machining generally refers to a precision machining method controlled by computerised digital systems, and has now become a widely used machining technique. The equipment used for CNC machining is known as a CNC machine tool.