Cutting Parameters- Cutting speed, feed and depth of cut

 Cutting Speed

The cutting speed of a cutting tool may be defined as the speed at which the cutting edge pass over the material. Cutting speed is ordinarily expressed in meter per minute.
Feed
The feed of a cutting tool is the distance the tool advances into or along the work piece each time the tool point passes a certain position in its travel over the surface. In the case of turning , the feed is the distance that the tool advances in one revolution of the work piece. On a shaper, the feed is the distance the work is moved relative to the tool for each cutting stroke. For  single point tool, feed is specified in millimeter per revolution, milimeter per stroke etc. It may be expressed in millimeter per tooth for milling cutters.
Depth of cut
It is the distance the tool dig into the metal at the start of of each cutting pass.
In general cutting speed, feed and depth of cut are determined by the following factors:
1. Kind of material being cut
2. Kind of material and life of the tool
3. Geometry o the cutting tool
4. Type of finish desired
5. Rigidity of the machine
6. Type of cutting fluid used