Calculated Industries MACHINIST CALC PRO - FEED RATE

Us e r 's GU i d e — 21
RPM – Milling
Calculate the Spindle Speed (RPM) when milling with a 9.3 mm
bit at a Cutting Speed of 90 smm (surface meters per minute):
RPM
Diameter: 9.3 mm
KEYSTROKE DISPLAY
OO
0.
1. Enter the bit Diameter:
9.3d
DIA $ 9.3 MM
2. Enter the Cutting Speed:
90C
CUT $ 90. M/MIN
3. Calculate the Spindle Speed (RPM):
R
RPM 3080.
R
CUT $ 90. M/MIN
R
DIA $ 9.3 MM
rR
* RPM $ 3080.4183
* The calculated RPM is displayed as a rounded, whole number value.
rR
displays the stored RPM value in decimal oating point format .
UG4089E-A-inside.indd 21 6/9/2011 3:16:17 PM