Machining Revolutions per Minute

on . Posted in Welding Engineering

 

Machining revolutions Per Minute formula

\(\large{ RPM =  \frac{ SFM \; \frac{12}{ \pi }  }{ d_w }  }\)
Symbol English Metric
\(\large{ RPM } \) = revolutions per minute \(\large{\frac{rev}{min}}\)  \(\large{\frac{rev}{min}}\) 
\(\large{ d_w } \) = diameter of workpiece  \(\large{in}\) \(\large{mm}\) 
\(\large{ \pi }\) = Pi \(\large{3.141 592 653 ...}\)  
\(\large{ SFM } \) = surface feet per minute \(\large{\frac{ft}{min}}\)  \(\large{\frac{m}{min}}\) 

 

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Tags: Machining Equations