Siemens SINUMERIK 840D sl Operating Manual page 226

Programming a cycle
4.7 Milling
Parameters
Parameter
PL
RP
SC
F
Machining
Machining type
Machining
position
X0
Y0
Z0
∅
Z1
DXY
P
DZ
UXY
UZ
226
Description
Machining plane:
1)
G17 (XY)
Milling direction:
Down-cut
•
Up-cut
•
G2
•
G3
•
Retraction plane (abs)
Normally, reference point Z0 and retraction plane RP have different values. The
cycle assumes that the retraction plane is in front of the reference point.
Safety clearance (inc)
Acts in relation to the reference point. The direction in which the safety clearance
is active is automatically determined by the cycle.
Feedrate
∇ (roughing)
•
∇∇∇ (finishing)
•
∇∇∇ edge (edge finishing)
•
Chamfering
•
Plane-by-plane
•
Solid machine circular pocket plane-by-plane
Helical
•
Solid machine circular pocket helically
Single position
•
A circular pocket is machined at the programmed position (X0, Y0, Z0).
Position pattern
•
Several circular pockets are machined in a position pattern
(e.g. full circle, pitch circle, grid, etc.).
The reference points refer to the center point of the circular pocket:
Reference point X – (for single position only)
Reference point Y – (for single position only)
Reference point Z
Diameter of the circular pocket
Pocket depth (abs) or depth relative to Z0 (inc) – (only for ∇, ∇∇∇ and ∇∇∇ edge)
Maximum plane infeed
Alternately, you can specify the plane infeed in %, as a ratio (plane infeed (mm) to
milling cutter diameter (mm)) - (not for chamfering or edge finishing).
Pitch of helix – (for helical machining only)
Maximum depth infeed - (not for helical and chamfer)
Plane finishing allowance - (only for ∇, ∇∇∇ and ∇∇∇ edge)
Depth finishing allowance – (only for ∇ and ∇∇∇)
Operating Manual, 01/2008, 6FC5398-7AP10-0BA0
Unit
mm/min
mm
mm
mm
mm
mm
mm
%
mm
mm
mm
HMI sl Turning