Material Removal Rate (MRR)
Calculate the volume of metal removed per minute during a milling operation.
MRR (in³/min)
The Math
MRR is a primary metric for determining the efficiency of a roughing operation. Higher MRR equals faster parts, but demands more spindle horsepower.
MRR = Radial Depth of Cut (WOC) × Axial Depth of Cut (DOC) × Feed Rate (IPM)