Siemens SINUMERIK 840D sl Operating Manual page 230

Programming a cycle
4.7 Milling
Parameters
Parameter
PL
RP
SC
F
FZ
Reference point
Machining
Machining
position
X0
Y0
Z0
W
L
R
α0
Z1
DZ
FS
ZFS
230
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
Depth infeed rate
The following different reference point positions can be selected:
Center
•
Bottom left
•
Bottom right
•
Top left
•
Top right
•
∇ (roughing)
•
• ∇∇∇ (finishing)
Chamfering
•
Single position
•
A rectangular spigot is machined at the programmed position (X0, Y0, Z0).
Position pattern
•
Several rectangular spigots are machined in a position pattern
(e.g. full circle, pitch circle, grid, etc.).
The positions refer to the reference point:
Reference point X – (for single position only)
Reference point Y – (for single position only)
Reference point Z
Width of rectangular spigot
Length of rectangular spigot
Corner radius
Angle of rotation
Spigot depth (abs) or depth relative to Z0 (inc) - (only for ∇ and ∇∇∇)
Maximum depth infeed - (only for ∇ and ∇∇∇)
Chamfer width for chamfering - (for chamfering only)
Insertion depth of tool tip (abs or inc) - (for chamfering only)
Operating Manual, 01/2008, 6FC5398-7AP10-0BA0
Unit
mm/min
mm/min
mm
mm
mm
mm
mm
mm
Degrees
mm
mm
mm
mm
HMI sl Turning