5
08/2005 ShopTurn Functions
5.6 Contour millin
5
♥ Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl Operation/Programming ShopTurn (BAT) – 08/2005 Edition 5-307
C0
X0
X1
DYZ
DX
UYZ
UX
Peripheral surface Y:
Reference point
Reference point in X direction (abs.)
Depth with reference to X0 (abs. or inc.)
Maximum infeed in the YZ plane
Plane infeed in %: Ratio of plane infeed (mm) to milling cutter diameter (mm)
Maximum depth infeed (X direction)
Finishing allowance in plane
Finishing allowance in depth
Degrees
mm
mm
mm
%
mm
mm
mm
Retraction
mode
If more than one approach point is necessary, specify the retraction height to which
the tool retracts between approach points.
To retraction plane
Z0+safety clearance (for end face/end face C and end face Y only) or
X0+safety clearance (for peripheral surface/peripheral surface C and peripheral
surface Y only)
If there are no spigots or other elements in the machining range higher than Z0 (X0),
Z0 + safety clearance (X0 + safety clearance) can be programmed as the retraction
mode.
5.6.13 Finishing the contour spigot
If you programmed a finishing allowance for the base or edge of the
spigot in spigot milling, you still have to finish the spigot.
Separate blocks must be programmed for finishing the base and/or for
finishing the edge. In each case, the spigot will only be machined
once.
You can program "Path milling" as an alternative to "Edge finishing".
Optimization possibilities are also offered for the approach/retract
strategy and the approach/retract mode. Then program as follows:
1. Contour blank
2. Contour spigot
3. Mill spigot (roughing)
4. Contour blank
5. Path milling (finishing)
6. Contour spigot
7. Path milling (finishing)
Contour
milling >
Spigot
milling
¾ Press the "Milling", "Contour milling" and "Spigot milling" soft keys.
¾ Select "Finish base" or "Finish edge" machining mode.
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