Sl Cycles: Overlapping Contours - HEIDENHAIN TNC 370 User Manual

8 Cycles
8.5 SL Cycles
SL Cycles: Overlapping contours
Pockets and islands can be overlapped to form a new contour. The area
of a pocket can thus be enlarged by another pocket or reduced by an
island.
Starting position
Machining begins at the starting position of the first pocket in Cycle 14
CONTOUR GEOMETRY. The starting position should be located as far
as possible from the overlapping contours.
F g. 8.42: Example of overlapping contours
Example: Overlapping pockets
Machining begins with the first contour label defined in block 6. The first
pocket must begin outside the second pocket.
Inside machining with a center-cut end mill
(IS.0 1641). tool radius 3 mm.
Coordinates of the circle centers:
@ X = 35mm Y = 50mm
@ X = 65mm Y = 50mm
Circle radii
R = '25mm
Setup clearance: 2 mm
Milling depth: 10 mm
Pecking depth: 5 mm
Feed rate for pecking: 500 mm/min
Finishing allowance: 0
Direction angle for rough-out:
0
Milling feed rate: 500 mm/min
IX
35 65
Continued... 4
8-44 TNC 370