Siemens sinumerik 840D sl Operating Manual page 292

Programming technology functions (cycles)
8.2 Rotate
4. Thread with advance:
5. Steps 3 and 4 are repeated until the thread is finished.
6. The tool moves back to the retraction plane at rapid traverse.
Thread machining can be stopped at any time with the "Rapid lift" function. It ensures that
the tool does not damage the thread when it is raised.
Procedure for longitudinal thread, tapered thread, or face thread
Parameters, G code program (thread, longitudinal)
PL Machining plane
SC Safety clearance
F Feedrate
292
The tool moves at rapid traverse to the return distance VR and then to the next starting
position.
Thread with run-in:
The tool moves at rapid traverse to the return distance VR and then back to the starting
position.
1. The part program or ShopTurn program to be processed has been
created and you are in the editor.
2. Press the "Turning" softkey.
3. Press the "Thread" softkey.
The "Thread" input window opens.
4. Press the "Longitudinal thread" softkey.
The "Longitudinal Thread" input window opens.
- OR -
Press the "Tapered thread" softkey.
The "Tapered Thread" input window opens.
- OR -
Press the "Face thread" softkey.
The "Face Thread" input window opens.
mm
mm/min
Parameters, ShopTurn program (thread, longitudinal)
T Tool name
D Cutting edge number
F Feedrate
S / V Spindle speed or constant
cutting rate
Operating Manual, 07/2010, 6FC5398-8CP40-0BA0
mm/min
mm/rev
rpm
m/min
Turning