Siemens SINUMERIK 840D sl Operation/Programming Manual page 198

ShopTurn Functions
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5.3 Turning
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5. The tool moves back by D + safety clearance at rapid traverse.
6. The tool cuts alternately in the first and second recess by the
infeed depth 2D until the final depth T1 is reached (3) and (4).
Between the individual recess cuts the tool moves back by D +
safety clearance at rapid traverse. After the last recess cut, the tool
is retracted at rapid traverse to the safety clearance.
7. All further recess cuts are made alternately directly down to the
final depth T1 (5) to (8). Between the individual recess cuts the tool
moves back to the safety clearance at rapid traverse.
Finishing
1. The tool is moved at rapid traverse first to the return plane and
then to the safety clearance.
2. The tool moves at machining feedrate down one flank and along
the bottom to the center.
3. The tool moves back to the safety clearance at rapid traverse.
4. The tool moves at machining feedrate down the other flank and
along the bottom to the center.
5. The tool moves back to the safety clearance at rapid traverse.
Press the "Turning" and "Recess" soft keys.
Recess >
Select one of the three recess cycles with the soft key:
Simple recessing cycle
-or-
Recessing cycle with oblique lines, radii or chamfers
-or-
Recessing on an incline with oblique lines, radii or chamfers
SINUMERIK 840D sl Operation/Programming ShopTurn (BAT) – 08/2005 Edition
08/2005
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♥ Siemens AG, 2005. All rights reserved.