Cutting of a flat surface perpendicular to the axis of the miller or lathe
In machining, facing is the cutting of a flat surface perpendicular to some axis of the workpiece. This can be applied in two different areas:
- Facing on a milling machine (perpendicular to the axis of movement), which involves various milling operations, but primarily face milling.
- Facing on a lathe (perpendicular to the axis of rotation), which is commonly used in turning and boring operations.
Other operations remove material in ways similar to facing, for example, planing, shaping, and grinding, but these processes are not labeled by the term "facing."