HEIDENHAIN TNC 430 - Page 297

HEIDENHAIN TNC 426, TNC 430 271
8.4 Cycles for milling pockets, studs and slots
U Set-up clearance 1 (incremental value): Distance
between tool tip (at starting position) and workpiece
surface
U Milling depth 2 (incremental value): Distance
between workpiece surface and bottom of pocket
U Plunging depth 3 (incremental value): Infeed per cut.
The tool will drill to the depth in one operation if:
n the plunging depth is equal to the depth
n the plunging depth is greater than the depth
U Feed rate for plunging: Traversing speed during
penetration
U 1st side length 4: Slot length; specify the sign to
determine the first milling direction
U 2nd side length 5: Slot width
U Feed rate F: Traversing speed of the tool in the
working plane
Example: NC blocks
9 L Z+100 R0 FMAX
10 TOOL DEF 1 L+0 R+6
11 TOOL CALL 1 Z S1500
12 CYCL DEF 3.0 SLOT MILLING
13 CYCL DEF 3.1 SET UP 2
14 CYCL DEF 3.2 DEPTH -15
15 CYCL DEF 3.3 PLNGNG 5 F80
16 CYCL DEF 3.4 X50
17 CYCL DEF 3.5 Y15
18 CYCL DEF 3.6 F120
19 L X+16 Y+25 R0 FMAX M3
20 L Z+2 M99
1
2
1
3
1
4
1
5
1