Siemens SINUMERIK 840D sl Operating Manual page 220

Programming a cycle
4.7 Milling
Approach/retraction
1. The tool approaches the center point of the rectangular pocket in rapid traverse at the
2. The tool is inserted into the material according to the chosen strategy.
3. The rectangular pocket is always machined with the chosen machining type from inside
4. The tool moves back to the safety clearance at rapid traverse.
Machining method
● Roughing
● Finishing
● Edge finishing
Procedure
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height of the retraction plane and adjusts to the safety clearance.
out.
Roughing involves machining the individual planes of the pocket one after the other from
the center out, until depth Z1 or X1 is reached.
During finishing, the edge is always machined first. The pocket edge is approached on
the quadrant that joins the corner radius. During the last infeed, the base is finished from
the center out.
Edge finishing is performed in the same way as finishing, except that the last infeed (base
finishing) is omitted.
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 "Milling" softkey.
4. Press the "Pocket" and "Rectangular pocket" softkeys.
The "Rectangular Pocket" input window opens.
Operating Manual, 01/2008, 6FC5398-7AP10-0BA0
HMI sl Turning