Material Removal Rate Calculator — Formula
## Material Removal Rate in Milling
MRR quantifies how fast material is being removed, which directly relates to productivity and power consumption.
### Formula
**MRR = ap x ae x Vf**
where ap is the axial depth of cut, ae is the radial width of cut, and Vf is the table feed rate. The result in mm^3/min can be divided by 1000 for cm^3/min.
MRR quantifies how fast material is being removed, which directly relates to productivity and power consumption.
### Formula
**MRR = ap x ae x Vf**
where ap is the axial depth of cut, ae is the radial width of cut, and Vf is the table feed rate. The result in mm^3/min can be divided by 1000 for cm^3/min.
Exemplo Resolvido
Milling with 3 mm depth, 20 mm width, at 400 mm/min feed.
- MRR = 3 x 20 x 400 = 24,000 mm^3/min
- MRR = 24,000 / 1000 = 24 cm^3/min
- For steel with specific cutting energy of 2.5 W-s/mm^3, power = 24000/60 x 2.5 = 1000 W = 1 kW at spindle.