Centre Lathe - Cutting speed and feed

Drilling machine cutting speed

Cutting speed is defined as the speed at which the work moves with respect to the tool (usually measured in metre per minute). Feed rate is defined as the distance the tool travels during one revolution of the part. Cutting speed and feed determines the surface finish, power requirements, and material removal rate.

Videos

Factors influencing cutting speed and feed:

Type of material

The diameter of the work or drill bit

Specific machining operation

As a general rule of thumb, the harder the material the lower the speed and feed and vice versa.

As a general rule of thumb, the larger the diameter of work the lower the speed and feed and vice versa.

Different cutting operations will require different cutting speeds. For example screw cutting will be slower than parallel turning.

Other factors influencing cutting speed and feed:

Type of cutting drill
Type of cutting fluid
Size of drilling machine
Quality of the drilling machine
Rigidity and wear on drilling machine components

Calculations

Cutting speed and feed calculator 1

Cutting speed and feed calculator 2

Cutting speed and feed calculator 3

Cutting speed and feed calculator 4