Siemens SINUMERIK 840D sl Operating Manual page 262

Programming a cycle
4.8 Contour milling
Parameters
Parameter
RP
SC
F
Machining
Machining direction
Radius compensation
Z0
Z1
DZ
UZ
FS
ZFS
UXY
Approach
262
Description
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)
•
Chamfering
•
Machining in the programmed contour direction
Forward:
•
Machining is performed in the programmed contour direction
Backward:
•
Machining is performed in the opposite direction to the programmed contour
Left (machining to the left of the contour)
•
Right (machining to the right of the contour)
•
Off
•
A programmed contour can also be machined on the center-point path. In this
case, approaching and retraction is only possible along a straight line or
vertical. Vertical approach/retraction can be used for closed contours, for
example.
Reference point Z0 (abs or inc)
End point Z (abs or inc) - (only for ∇ and ∇∇∇)
Maximum depth infeed - (only for ∇ and ∇∇∇)
Depth finishing allowance – (only for ∇ and ∇∇∇)
Chamfer width for chamfering (inc) - (for chamfering only)
Insertion depth of tool tip (abs or inc) - (for chamfering only)
Plane finishing allowance – (only for ∇ and ∇∇∇)
Planar approach mode:
Quadrant:
•
Part of a spiral (only with path milling left and right of the contour)
Semi-circle:
•
Part of a spiral (only with path milling left and right of the contour)
Straight line:
•
Slope in space
Perpendicular:
•
Perpendicular to the path (only with path milling on the center-point path)
Operating Manual, 01/2008, 6FC5398-7AP10-0BA0
Unit
mm
mm
mm
mm
mm
mm
HMI sl Turning