HEIDENHAIN TNC 640 (34059x-05) ISO programming - Manual (Page 148)

Programming: Programming aids
4.5 Cutting data calculator
4
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TNC 640 | User's ManualDIN/ISO 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 T 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 T block. If you have to change the feed rate later,
you only need to adjust the feed-rate value in the T
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