HEIDENHAIN TNC 640 (34059x-02) Cycle programming - Manual (Page 354)

Cycles: Turning
13.22 RADIAL RECESSING
(Cycle 861, DIN/ISO: G861)
13
354
TNC 640 | User's Manual Cycle Programming | 5/2013
Finishing cycle run
1 The TNC positions the tool at rapid traverse to the first slot side.
2 The TNC finishes the side wall of the slot at the defined feed
rate
Q505.
3 The TNC finishes half the slot width at the defined feed rate.
4 The TNC returns the tool at rapid traverse.
5 The TNC positions the tool at rapid traverse to the second slot
side.
6 The TNC finishes the side wall of the slot at the defined feed
rate
Q505.
7 The TNC finishes half the slot width at the defined feed rate.
8 The TNC positions the tool back at rapid traverse to the cycle
starting point.
Please note while programming:
Program a positioning block to the starting position
with radius compensation
R0 before the cycle call.
The tool position at cycle call defines the size of the
area to be machined (cycle starting point).