Calculated Industries Machinist Calc 4086 - Cutting Speed - Milling; Cutting Speed - Turning

26 — Ma c h i n i s t ca l c ™/ Ma c h i n i s t ca l c ™ Pr o
Cutting Speed – Milling
Calculate the Cutting Speed for a mill using a 1/2” tool running at
1,250 RPM (Spindle Speed):
KEYSTROKE DISPLAY
OO
0.
1. Enter the Diameter of the tool:
1/2d
DIA 0-1/2 INCH
2. Enter the RPM:
1250R
RPM 1250.
3. Calculate the Cutting Speed:
C
* CUT 164. FEET/MIN
C
DIA 0-1/2 INCH
C
RPM 1250.
rC
* CUT 163.62462 FEET/MIN
* The calculated Cutting Speed is displayed as a rounded, whole
number value.
rC
displays the stored Cutting Speed value in
decimal oating point format.
Cutting Speed - Turning
Calculate the Cutting Speed when turning a four-inch rod at 300
RPM (Spindle Speed):
KEYSTROKE DISPLAY
OO
0.
1. Enter the Diameter of the rod:
4id
DIA 4 INCH
2. Enter the RPM:
300R
RPM 300.
3. Calculate the Cutting Speed:
C
* CUT 314. FEET/MIN
(cont'd)