Siemens SINUMERIK 840D sl Turning Operating Manual page 592

Programming technology functions (cycles)
10.5 Contour milling
Parameter Description
Machining
● Face C
surface
● Face Y
● Face B
(only for ShopTurn)
● Peripheral surface C
● Peripheral surface Y
Clamp/release spindle (only for end face Y/B and peripheral surface Y)
The function must be set up by the machine manufacturer.
(only for ShopTurn)
Machining The following machining operations can be selected:
● ∇ (roughing)
● ∇∇∇ base (base finishing)
● ∇∇∇ edge (edge finishing)
● Chamfering
Z0 Reference point in the tool axis Z
Z1 Pocket depth (abs) or depth referred to Z0 (inc)
CP Positioning angle for machining area - (only for machining surface, face Y)
(only for ShopTurn)
Angle CP does not have any effect on the machining position in relation to the workpiece.
It is only used to position the workpiece with the rotary axis C in such a way that ma‐
chining is possible on the machine.
C0 Positioning angle for machining area - (only for machining surface, peripheral surface Y) Degrees
(only for ShopTurn)
DXY
● Maximum plane infeed
● Maximum plane infeed as a percentage of the milling cutter diameter
DZ Maximum depth infeed
UXY Finishing allowance, plane
UZ Finishing allowance, depth
Insertion The following insertion modes can be selected – (only for ∇, ∇∇∇ base or ∇∇∇ edge):
● Vertical
● Helical
● Oscillation
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The calculated actual infeed depth is executed at the calculated position for
"automatic" starting point – or at the specified position for "manual" starting point.
Note:
This setting can be used only if the cutter can cut across center or if the pocket has
been predrilled.
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.
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.
Operating Manual, 06/2019, A5E44903486B AB
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Turning