Siemens SINUMERIK 840D Operation/Programming Manual page 213

3
10.04
Parameters Description of finish cut along base:
T, F, V See Sec. "Programming the tool, offset value and spindle speed".
Machining type Finish base
Z0 Workpiece height (abs.)
Z1 Depth with reference to Z0 (abs. or inc.)
DXY Max. infeed, plane
Alternately, you can specify the plane infeed as a %, as a ratio --> plane infeed (mm)
to milling cutter diameter (mm).
UXY Finishing allowance, plane
UZ Finishing allowance, depth
Start point The starting point can be determined automatically or entered manually.
Manual entry allows for a start point outside the pocket, whereby straight line
machining into the pocket is performed first, e.g. for a pocket with a side opening
without any insertion.
X Coordinate of starting point (abs.), manual input only
Y Coordinate of starting point (abs.), manual input only
Insertion Oscillation: The tool is inserted at the programmed angle (EW).
Helical:
Center:
EW Insertion angle (for oscillation only)
EP Insertion gradient (only for helical)
The gradient of the helix may be smaller in some geometric conditions.
ER Insertion radius (only for helical)
The radius must not be larger than the cutter radius, otherwise material will remain.
Also make sure the pocket is not violated.
FZ Feedrate FZ (for Center only)
Retraction If the machining operation requires several points of insertion, the retraction height
mode can be programmed:
•
•
On making the transition to the next insertion point, the tool returns to this height.
If no elements greater than Z0 are in the pocket area, Z0 + safety clearance (SC)
can be programmed as the retraction mode.
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition
The tool is inserted along a helical path with the
programmed radius (ER) and programmed pitch (EP).
For this insertion strategy, a milling cutter is required that cuts in the
center. The programmed feed (FZ) is used for insertion.
To retraction plane
Z0 + safety clearance (SC)
Programming with ShopMill
3.5 Contour milling
3
Unit
mm
mm
mm
%
mm
mm
mm
mm
Degr.
mm/rev
mm
mm/min
mm
mm
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