Siemens SINUMERIK 840D sl Operating Manual page 417

G code program parameters
Milling direction
RP Retraction plane
F Feedrate
Parameter Description
Machining The following machining operations can be selected:
● ∇ (roughing)
● ∇∇ (pre-finishing)
● ∇∇∇ (finishing)
● ∇∇∇ base (base finishing)
● ∇∇∇ edge (edge finishing)
● Chamfering
Technology
● Vortex milling
● Plunge cutting
Milling direction: - (except plunge cutting).
● Climbing cutting
● Conventional cutting
● Climbing-conventional cutting
The positions refer to the reference point:
X0 Reference point X
Y0 Reference point Y
Z0 Reference point Z
W Slot width
L Slot length
Z1 Slot depth (abs) or depth in relation to Z0 (inc)
DXY
● Maximum plane infeed
● Maximum plane infeed as a percentage of the milling cutter diameter- (only for ∇ and
DZ Maximum depth infeed - (only for ∇, ∇∇ pre-finishing, ∇∇∇ and ∇∇∇ edge)- (only for vortex
milling)
UXY Plane finishing allowance (slot base) - (only for ∇, ∇∇ pre-finishing and ∇∇∇ base)
UZ Plane finishing allowance (slot edge) - (only for ∇, ∇∇ pre-finishing and ∇∇∇ edge)
FS Chamfer width for chamfering (inc) - (for chamfering only)
ZFS Insertion depth of tool tip (abs or inc) - (for chamfering only)
* Unit of feedrate as programmed before the cycle call
Milling
Operating Manual, 05/2017, A5E40868956
mm
*
The milling cutter performs circular motions along the length of the slot and back
again.
Sequential drilling motion along the tool axis.
∇∇∇)
Programming technological functions (cycles)
ShopMill program parameters
T Tool name
D Cutting edge number
F Feedrate
S / V Spindle speed or constant
cutting rate
10.2 Milling
mm/min
mm/rev
rpm
m/min
mm
mm
mm
mm
mm
mm
%
mm
mm
mm
mm
mm
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