Circular Pocket - Siemens SINUMERIK 840D Operation/Programming Manual

3
Programming with ShopMill
3.8 Milling

3.8.3 Circular pocket

Approach/retraction
Machining type
Select with softkey
3-270
Use the "Circular pocket" function if you want to mill any kind of

circular pocket.

The following machining methods are available:
•
Mill circular pocket from solid material.
•
Predrill circular pocket in the center first if, for example, the milling
cutter does not cut across center (program the drilling, circular
pocket and position program blocks one after another).
•
Machine pre-machined circular pocket (see "Machining"
parameter).
1. The tool approaches the center point of the pocket at rapid
traverse at the height of the retraction plane and adjusts to the
safety clearance.
2. The tool is inserted into the material according to the chosen
strategy.
3. The pocket is always machined with the chosen machining type
from inside out.
4. The tool moves back to the safety clearance at rapid traverse.
You can select the machining mode for milling the circular pocket as
follows:
•
Roughing
During roughing, the individual planes of the pocket are machined
one after the other from center point until depth Z1 is reached.
•
Finishing
In "Finishing" mode, the edge is always machined first. The
pocket edge is approached on the quadrant, which joins the
pocket radius. In the last infeed, the base is finished from the
center out.
•
Edge finishing
Edge finishing is performed in the same way as finishing, except
that the last infeed (finish base) is omitted.
•
Chamfer
Chamfering involves edge breaking at the upper edge of the
pocket.
Pocket >
SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition
Circular
pocket
 Siemens AG, 2004. All rights reserved
3
10.04