Behavior At Inside Corners - Siemens sinumerik 840D sl Function Manual

Detailed description
2.1 Circumferential milling
2.1.3

Behavior at inside corners

Collision monitoring
With the 3D compensation function, only adjacent traversing blocks are taken into account in
the calculation of intersections.
Path segments must be long enough to ensure that the contact points of the tool do not
cross the block limits into other blocks when the orientation changes at an inside corner.
Figure 2-7
Example:
N10 A0 B0 X0 Y0 Z0 F5000
N20 T1 D1
N30 TRAORI(1)
N40 CUT3DC
N50 ORID
N60 G42 X10 Y10
N70 X60
N80 A3=1 B3=0 C3=1
N90 X10
N100 G40 X0 Y0
N120 M30
Without change in orientation
If the orientation is not changed at the block limit, then the contour need only be considered
in the plane vertical to the tool axis. In this case, the tool cross-section is a circle which
touches the two contours. The geometric relations in this plane are identical to those for
2 /
1
2
16
The contact points of the tool must not cross the limits of block N70 or N90 as a result of
the change in orientation in block N80
D compensation.
; Radius=5
; Transformation selection
;3D TRC selection
; TRC selection
; Change in orientation of inside corners generated from
; N70 and N90
Special functions: 3D Tool Radius Compensation (W5)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0