HEIDENHAIN PT 855 for Milling - Manual (Page 78)

I - 6 INFO: Pocket Calculator, Stopwatch, Cutting Data Calculator
76 Operating Instructions POSITIP 855
ENT
Cutting data: Calculate spindle speed S and feed rate F
POSITIP can calculate the spindle speed S and the feed rate F for
you. As soon as you conclude an entry with ENT, POSITIP
prompts you for the next entry.
Entry values
• For the spindle speed S in rpm:
Enter the tool diameter D in mm and the cutting speed V in
m/min.
• For the feed rate F in mm/min:
Enter the spindle speed S in rpm,
the number of teeth n of the tool and
the permissible depth of cut per tooth d in mm.
For calculation of the feed rate, POSITIP automatically offers the
spindle speed it just calculated. You can enter a different value,
however.
INFO
Example: Entering the tool diameter
You can be in any operating mode. Select
Cutting Data
.
T o o l d i a m e t e r ?
8 ENT
Enter the tool diameter (8 mm) and transfer it into the box behind the letter D.
Function Key
Confirm entry and continue dialog
Go to the next-higher input line
Go to the next-lower input line