Finishing The Contour Spigot - Siemens SINUMERIK 840D sl Operation/Programming Manual

08/2005
5
Peripheral surface Y:
C0 Reference point
X0 Reference point in X direction (abs.)
X1 Depth with reference to X0 (abs. or inc.)
DYZ Maximum infeed in the YZ plane
Plane infeed in %: Ratio of plane infeed (mm) to milling cutter diameter (mm)
DX Maximum depth infeed (X direction)
UYZ Finishing allowance in plane
UX Finishing allowance in depth
Retraction If more than one approach point is necessary, specify the retraction height to which
mode the tool retracts between approach points.
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

Spigot
milling
♥ Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl Operation/Programming ShopTurn (BAT) – 08/2005 Edition
 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 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)
Press the "Milling", "Contour milling" and "Spigot milling" soft keys.
Contour
milling >
Select "Finish base" or "Finish edge" machining mode.
ShopTurn Functions
5.6 Contour milling
5
Degrees
mm
mm
mm
%
mm
mm
mm
5-307