Siemens SINUMERIK 840D Operating Manual page 356

Programming technological functions (cycles)
8.4 Turning - only for G code programs
If the tool does not round the corner at the end of the cut, it is raised by the safety distance
or a value specified in the machine data at rapid traverse. The cycle always observes the
lower value; otherwise, stock removal at inner contours, for example, could cause the
contour to be damaged.
● Finishing
Procedure
Parameters, G code program
PL Machining plane
SC Safety clearance
F Feedrate
356
Machine manufacturer
Please also refer to the machine manufacturer's instructions.
Machine manufacturer
Please also refer to the machine manufacturer's instructions.
Finishing is performed in the same direction as roughing. The cycle automatically selects
and deselects tool radius compensation during finishing.
1. The part program to be executed has been created and you are in the
editor.
2. Press the "Turning" softkey.
3. Press the "Stock removal" softkey.
The "Stock Removal" input window opens.
4. Select one of the three stock removal cycles via the softkeys:
Simple straight stock removal cycle.
The "Stock removal 1" input window opens.
- OR
Straight stock removal cycle with radii or chamfers.
The "Stock removal 2" input window opens.
- OR
Stock removal cycle with oblique lines, radii, or chamfers.
The "Stock Removal 3" input window opens.
mm
mm/min
Operating Manual, 03/2010, 6FC5398-7CP20-1BA0
Milling