HEIDENHAIN TNC 640 (34059x-05) User Manual
Page 150
Programming: Programming aids
4.5
Cutting data calculator
4
150
TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 1/2015
Window for feed rate calculation:
Code letter
Meaning
S:
Spindle speed (rpm)
Z:
Number of teeth on the tool (n)
FZ:
Feed per tooth (mm/tooth)
FU:
Feed per revolution (mm/rev)
F=
Result for feed rate (mm/min)
You can also calculate the feed rate in the TOOL
CALL block and automatically transfer it to the
subsequent positioning blocks and cycles. For feed
rate input in positioning blocks or cycles, select
the soft key F AUTO. The TNC then uses the feed
rate defined in the TOOL CALL block. If you have to
change the feed rate later, you only need to adjust
the feed-rate value in the TOOL CALL block.
Functions in the cutting data calculator:
Soft key
Function
Load the spindle speed from the cutting data
calculator form into an open dialog field.
Load the feed rate from the cutting data
calculator form into an open dialog field.
Load the cutting speed from the cutting data
calculator form into an open dialog field.
Load the feed per tooth from the cutting data
calculator form into an open dialog field.
Load the feed per revolution from the cutting
data calculator form into an open dialog field.
Load the tool radius into the cutting data
calculator form
Load the spindle speed from the open dialog
field into the cutting data calculator form
Load the feed rate from the open dialog field
into the cutting data calculator form