Siemens SINUMERIK 840D SL Operating Manual page 340

Programming technological functions (cycles)
8.2 Milling
Machining
∇ (roughing)
•
∇∇∇ (finishing)
•
∇∇∇ edge (edge finishing)
•
• Chamfering
Machining
Single position
•
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 – (single position only and G Code position pattern)
W Slot width
L Slot length
α0 Angle of rotation
Z1 Slot depth (abs) or depth relative to Z0 (inc) – (only for ∇, ∇∇∇ and ∇∇∇ edge)
DXY
Maximum plane infeed
•
Maximum plane infeed as a percentage of the milling cutter 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: Insertion on helical path (only for G code)
•
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.
Oscillating: Insert with oscillation along center axis of longitudinal slot
•
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 eliminate the inclined insertion path.
FZ Depth infeed rate – (for perpendicular insertion only)
(only for G code)
340
Operating Manual, 02/2012, 6FC5398-7CP40-3BA0
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Milling