Siemens SINUMERIK 840D sl Operating Manual page 178

Programming a cycle
4.5 Rotate
● Finishing
Approach/retraction
1. The tool first moves at rapid traverse to the starting point of the machining operation
2. The tool moves to the first infeed depth at rapid traverse.
3. The first cut is made at machining feedrate.
4. The tool rounds the contour at machining feedrate or is raised at rapid traverse (see
5. The tool is moved at rapid traverse to the starting point for the next infeed depth.
6. The next cut is made at machining feedrate.
7. Steps 4 to 6 are repeated until the final depth is reached.
8. The tool moves back to the safety distance at rapid traverse.
Procedure
178
Finishing is performed in the same direction as roughing. The cycle automatically selects
and deselects tool radius compensation during finishing.
calculated internally in the cycle (reference point + safety distance).
"Roughing").
1. Select the part program to be edited in the "Program manager"
operating area.
2. Press the "Open" softkey or the "INPUT" key to edit the part program
in the editor.
3. Press the "Turning" softkey.
4. Press the "Stock removal" softkey.
The "Stock Removal" input window opens.
5. 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.
Operating Manual, 01/2008, 6FC5398-7AP10-0BA0
HMI sl Turning