Where d - is the diameter of the work in mm. And for an example using metric values where the cutting speed is 30 mmin and a diameter of 10 mm 001 m R P M S p e e d p D i a m e t e r 1000 30 m m i n 3 10 m m 1000 r e v s m i n. Where d is the diameter of the work in inches and.
P cutting diameter in millimeters.
RPM Revolutions Per Minute Spindle Speed Number of revolutions of spindle per minute. Calculate the RPM when you know the cutting speed and diameter or calculate the cutting speed if the RPM and blade diameter are known wwwkinkelderco. What is the cutting speed when main axis spindle speed is 700min -1 and external diameter is O50. From the feed and spindle speed.