Siemens SINUMERIK 828D Operating Manual page 256

Programming technological functions (cycles)
8.2 Milling
Parameter Description
Reference point Position of the reference point:
•
•
•
•
•
∇ (roughing)
Machining •
∇∇∇ (finishing)
•
∇∇∇ edge (edge finishing)
•
Chamfering
•
Single position
Machining •
position
A slot is milled at the programmed position (X0, Y0, Z0).
Position pattern
•
Several slots are milled at the programmed position pattern (e.g. pitch circle, grid,
line).
The positions refer to the reference point:
X0 Reference point X – (for single position only)
Y0 Reference point Y – (for single position only)
Z0 Reference point Z
W Groove width
L Groove length
α0 Angle of rotation
Z1 Slot depth (abs) or depth relative to Z0 (inc) – (only for ∇, ∇∇∇ and ∇∇∇ edge)
Maximum plane infeed
DXY •
Maximum plane infeed as a percentage of the cutting tool diameter
•
- (only for ∇ and ∇∇∇)
DZ Maximum depth infeed - (only for ∇, ∇∇∇ and ∇∇∇ Rand)
UXY Plane finishing allowance - (only for ∇, ∇∇∇ and ∇∇∇ edge)
UZ Depth finishing allowance (slot base) - (only for ∇ and ∇∇∇)
Insertion The following insertion modes can be selected:
Predrilled: (only for G code)
•
Approach of reference point shifted by the amount of the safety clearance with G0.
Perpendicular: Insert vertically in longitudinal groove center:
•
The tool is inserted to infeed depth in the pocket center.
Note: This setting can be used only if the cutter can cut across center.
Helical: Insert along helical path
•
The cutter center point traverses along the helical path determined by the radius
and depth per revolution (helical path). If the depth for one infeed has been
reached, a full longitudinal slot is machined to eliminate the inclined insertion path.
Oscillation: Insert with oscillation along center axis of longitudinal groove:
•
The cutter center point oscillates along a linear path until it reaches the depth
infeed. When the depth has been reached, the path is traversed again without
depth infeed in order to remove the slope caused by insertion.
256
(left-hand edge)
(inside left)
(center)
(inside right)
(right-hand edge)
Operating Manual, 06/2009, 6FC5398-7CP20-0BA0
Unit
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Degrees
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%
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HMI sl Milling