Metal Removal Rate

Written by Jerry Ratzlaff on . Posted in Welding Engineering

Metal removal rate, abbreviated as MMR or Q, is the volume of chips material removed in one minute.

 

Metal Removal Rate formulas

\(\large{ MRR =  \frac{ A \; d }{ t }  \; 60  }\)   
\(\large{ MRR =  s \; f \; d  }\)  
\(\large{ MRR =  \frac{ s \; f \; d }{ 1000 }  }\)  

Where:

\(\large{ MRR }\) = metal removal rate

\(\large{ A } \) = area of cut

\(\large{ d } \) = depth of cut

\(\large{ s } \) = speed of cut

\(\large{ t } \) = cut time

\(\large{ f } \) = feed rate

 

Tags: Equations for Welding Equations for Machining