Material Removal Rate Calculator

Formula

The formula to calculate the material removal rate is:

\[ MRR = RDOC \cdot ADOC \cdot FR \]

Where:

\( MRR \) is the material removal rate (in³/min).
\( RDOC \) is the radius depth of cut (in).
\( ADOC \) is the axial depth of cut (in).
\( FR \) is the feed rate (in/min).

Example

Let's say the radius depth of cut (RDOC) is 0.5 inches, the axial depth of cut (ADOC) is 0.2 inches, and the feed rate (FR) is 10 inches per minute. The material removal rate would be calculated as follows:

\[ MRR = 0.5 \cdot 0.2 \cdot 10 = 1 \text{ in³/min} \]

So, the material removal rate is 1 in³/min.

What is a Material Removal Rate?

A material removal rate is a measure of how much volume of material per unit time is being removed from a stock piece of material, typically on a milling or similar CNC machine. CNC machines aim to have the highest possible material removal rate while continuing to produce accurate and precise parts.