3
Programming with ShopMill 10.04
3.5 Contour millin
3
ï›™ Siemens AG, 2004. All rights reserved
3-204 SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition
Approach/retraction
strategy
You can choose between planar approach/retraction and spatial
approach/retraction:
• Planar approach: First approach depth in the Z direction
then in the XY plane.
• Spatial approach: Approach in depth and plane
simultaneous.
• Retraction is performed in reverse order.
Mixed programming is possible, for example, approach in the
plane, retract spatially.
Path milling along the
center-point path
A programmed contour can also be machined along the center-point
path if the operation has been activated under radius compensation
(no radius compensation). 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.
Parameters Description Unit
T, D, F, S, V See Sec. "Programming the tool, offset value and spindle speed".
Radius
compensation
Machining to the left of the contour
Machining to the right of the contour
Machining along the center path
Machining type Roughing
Finishing
Chamfer
Machining
direction
Forward: machining is performed in the programmed contour direction
Backward: machining is performed in the opposite direction to the programmed
contour
Z0 Reference plane (abs. or inc.)
Z1 End depth (abs. or inc.) (not for chamfer) mm
DZ Infeed depth (not for chamfer) mm
FS
Chamfer width (for chamfer only), inc.
mm
ZFS
Insertion depth tool tip (for chamfer only), abs. or inc.
mm
UZ Finishing allowance base (not for chamfer) mm
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