Siemens SINUMERIK 828D Operating Manual page 241

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 type
● Roughing
● Finishing
● Finishing of edge
● Chamfering
Procedure
Parameters, G code program
PL Machining plane
Milling direction
RP Retraction plane
SC Safety clearance
F Feedrate
HMI sl Milling
Operating Manual, 06/2009, 6FC5398-7CP20-0BA0
height of the retraction plane and adjusts to the safety clearance.
out.
During roughing, the individual planes of the rectangular pocket are machined one after
the other from center point until depth Z1 is reached.
During finishing, the edge is always machined first. The rectangular pocket edge is
approached on the quadrant that joins the corner radius. In 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
(finish base) is omitted.
Chamfering involves edge breaking at the upper edge of the rectangular pocket.
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 "Pocket" and "Rectangular pocket" softkeys.
The "Rectangular pocket" input window opens.
mm
mm
mm/min
Programming technological functions (cycles)
Parameters, ShopMill program
T Tool name
D Cutting edge number
F Feedrate
S / V Spindle speed or constant
cutting rate
8.2 Milling
mm/min
mm/rev
rpm
m/min
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