Maró

Milling is mainly used to produce flat surfaces, complex planes or other shapes, usually external. The cutting movement is a rotary movement and is always performed by the tool. The feed motion - perpendicular to the tool axis - is a rectilinear motion that can be performed by both the tool and the workpiece. The depth of grip must be determined both in the direction of the tool axis and perpendicular to it, sometimes in both directions simultaneously.

Based on the above characteristics, milling involves the intermittent removal of chips of variable cross-section using a tool with multiple edges and a defined edge geometry. This group of machining operations constitutes the group of 'rotary tool machining' operations which, with high material removal rates, have a very varied tooling and a large number of process variations.