Siemens SINUMERIK 840D SL Operating Manual page 324

Programming technological functions (cycles)
8.2 Milling
Parameter Description
Machining
Single position
•
position
Mill rectangular pocket to the programmed position (X0, Y0, Z0).
Position pattern
•
Position with MCALL
The positions refer to the reference point:
X0 Reference point X – (single position only)
Y0 Reference point Y – (single position only)
Z0 Reference point Z – (single position only and G Code position pattern)
W Pocket width
L Pocket length
R Corner radius
α0 Angle of rotation
Z1 Depth referred to Z0 (inc) or pocket depth (abs) - (only for ∇, ∇∇∇ or ∇∇∇ 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 ∇, ∇∇∇ or ∇∇∇ edge)
UXY Plane finishing allowance – (only for ∇, ∇∇∇ or ∇∇∇ edge)
UZ Depth finishing allowance – (only for ∇, ∇∇∇ or ∇∇∇ edge)
Insertion The following insertion modes can be selected – (only for ∇, ∇∇∇ or ∇∇∇ edge)
Predrilled: (only for G code)
•
With G0, the pocket center point is approached at the retraction level, and then,
from this position, the reference point brought forward by the safety clearance is
approached also with G0. The machining of the rectangular pocket is then
performed according to the selected insertion strategy, taking into account the
programmed blank dimensions.
Perpendicular: Insert vertically at the center of pocket
•
The tool executes the calculated actual depth infeed at the pocket center in a single
block. This setting can be used only if the cutter can cut across center or if the
pocket has been predrilled.
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 circle motion is executed to eliminate the inclined insertion path.
Oscillating: Insert with oscillation along center axis of rectangular pocket
•
The cutter center point oscillates back and forth 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)
324
Operating Manual, 02/2012, 6FC5398-7CP40-3BA0
Unit
mm
mm
mm
mm
mm
mm
Degrees
mm
mm
%
mm
mm
mm
*
Milling