P cutting diameter in millimeters. The cutting speed direction of feed and depth of cut to be given to a workpiece are shown in the figure below. Cutting speed CS X 4 Diameter of cutter D This simplified version of the RPM formula is the most common formula used in machine shops.
The milling process definitions Cutting speedv c Indicates the surface speed at which the.
Whereas a diamond tool can be used between 300 500mmin. Lets put this formula to work in calculating the RPM for the machining example below. D Diameter of tool or part depending on milling or turning. P cutting diameter in millimeters.