Siemens SINUMERIK 840D sl Operating Manual page 353

6. The tool cuts alternating in the first and second groove with the infeed depth 2 · D, until the
final depth T1 is reached.
Between the individual grooves, the tool moves back by D + safety clearance with rapid
traverse. After the last groove, the tool is retracted at rapid traverse to the safety distance.
7. All subsequent groove cuts are made alternating and directly down to the final depth T1.
Between the individual grooves, the tool moves back to the safety distance at rapid traverse.
Approach/retraction during finishing
1. The tool first moves to the starting point calculated internally in the cycle at rapid traverse.
2. The tool moves at the machining feedrate down one flank and then along the bottom to the
center.
3. The tool moves back to the safety distance at rapid traverse.
4. The tool moves at the machining feedrate along the other flank and then along the bottom
to the center.
5. The tool moves back to the safety distance at rapid traverse.
Procedure
Parameters, G code program
PL Machining plane
SC Safety clearance
F Feedrate
Turning
Operating Manual, 05/2017, A5E40868721
1. The part program or ShopTurn program to be processed has been cre‐
ated and you are in the editor.
2. Press the "Turning" softkey.
3. Press the "Groove" softkey.
The "Groove" input window opens.
4. Select one of the three groove cycles with the softkey:
Simple groove cycle
The "Groove 1" input window opens.
- OR
Groove cycle with inclines, radii, or chamfers.
The "Groove 2" input window opens.
- OR
Groove cycle on an incline with inclines, radii or chamfers.
The "Groove 3" input window opens.
mm
*
Programming technology functions (cycles)
Parameters, ShopTurn program
T Tool name
D Cutting edge number
F Feedrate
S / V Spindle speed or constant cutting
rate
10.2 Rotate
mm/rev
rpm
m/min
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