Siemens SINUMERIK 840D

Programming technological functions (cycles)
8.2 Milling
Milling
Operating Manual, 03/2010, 6FC5398-7CP20-1BA0
311
Parameter Description Unit
W Groove width mm
Z1
(only for G code)
Slot depth (abs) or depth relative to Z0 (inc) – (only for ∇, ∇∇∇ and
∇∇∇ edge)
mm
Z1 (only for
ShopMill)
Slot depth (abs) or depth relative to Z0 (inc) - (only for ∇, ∇∇∇ and
∇ + ∇∇∇)
mm
DZ Maximum depth infeed - (only for ∇, ∇∇∇ and ∇∇∇ Rand) mm
DZ Maximum depth infeed - (only for ∇, ∇∇∇ and ∇ + ∇∇∇) mm
FS Chamfer width for chamfering (inc) - (for chamfering only), mm
ZFS Insertion depth of tool tip (abs or inc) - (for chamfering only), mm
UXY
(only for G code)
Plane finishing allowance - (only for ∇, ∇∇∇ and ∇∇∇ edge) mm
UXY (only for
ShopMill)
Plane finishing allowance – (only for ∇, ∇∇∇ and ∇ + ∇∇∇) mm
Positioning
Positioning motion between the grooves:
 Straight line:
Next position is approached linearly at rapid traverse.
 Circular:
Next position is approached at the programmed feedrate FP along a circular path.
8.2.9 Open groove (CYCLE899)
Function.
Use the "Open slot" function if you want to machine open slots.
For roughing, you can choose between the following machining strategies, depending on
your workpiece and machine properties.
● Vortex milling
● Plunge cutting
The following machining types are available to completely machine the slot:
● Roughing
● Rough-finishing
● Finishing
● Base finishing
● Edge finishing
● Chamfering