Siemens SINUMERIK 840D sl Operation/Programming Manual page 294

ShopTurn Functions
5
5.6 Contour milling
Insertion Insertion strategy:
Oscillation: Oscillating insertion with the programmed angle (EW).
Helical: Helical insertion with the programmed radius (ER) and the programmed
gradient (EP).
Center: For this insertion strategy, a milling cutter is required that cuts in the center.
It is inserted at the programmed feedrate (FZ or FX).
EW Insertion angle (for oscillation only)
EP Maximum 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 Depth infeed feedrate (for end face/end face C and end face Y with central insertion
only)
FX Depth infeed feedrate (for peripheral surface/peripheral surface C and peripheral
surface Y with central insertion only)
Retraction If more than one insertion point is necessary, specify the retraction height to which
mode the tool retracts between insertion points:
If there are no islands larger than Z0 (X0) in the pocket area, Z0 + safety clearance
(X0 + safety clearance) can be programmed as the retraction mode.
5-294
 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)
SINUMERIK 840D sl Operation/Programming ShopTurn (BAT) – 08/2005 Edition
08/2005
5
Degrees
mm/rev
mm
mm/tooth
mm/min
mm/tooth
mm/min
♥ Siemens AG, 2005. All rights reserved