Machining is the broad term used to describe removal of material from a work piece, it covers several processes, which we usually divide into the following categories:
- Cutting, generally involving single-point or multipoint cutting tools, each with a clearly defined geometry.
- Abrasive processes, such as grinding.
- Nontraditional machining processes, utilizing electrical, chemical, and optimal sources of energy.
It is important to view machining, as well as all manufacturing operations, as a system consisting of the work piece, the tool and the machine. The traditional machining includes processes like turning, milling, drilling, and grinding. The nontraditional machining includes the EDM etc.