Siemens SINUMERIK 828D Operating Manual page 258

Programming technological functions (cycles)
8.2 Milling
3. When the first circumferential slot is finished, the tool moves to the retraction plane at
4. The next circumferential slot is approached along a straight line or circular path and then
5. The tool moves back to the safety clearance at rapid traverse.
Machining type
You can select the machining mode for milling the circumferential groove as follows:
● Roughing
● Finishing
● Roughing and finishing
● Finishing of edge
● Chamfering
Procedure
258
rapid traverse.
machined.
During roughing, the individual planes of the groove are machined one after the other
from center point of the semicircle at the end of the groove until depth Z1 is reached.
In "Finishing" mode, the edge is always machined first until depth Z1 is reached. The
groove edge is approached on the quadrant, which joins the radius. In the last infeed, the
base is finished from the center point of the semicircle to the end of the groove.
Roughing and finishing of a groove is performed in succession.
Edge finishing is performed in the same way as finishing, except that the last infeed
(finish base) is omitted.
Chamfering involves edge breaking at the upper edge of the circumferential groove.
1. The part program or ShopMill program to be processed has been
created and you are in the editor.
2. Press the "Milling" softkey.
3. Press the "Groove" and "Circumferential groove" softkeys.
The "Circumferential Groove" input window opens.
Operating Manual, 06/2009, 6FC5398-7CP20-0BA0
HMI sl Milling