HEIDENHAIN TNC 430 CA - Page 189

8 Programming: Cycles
174
ú
Setup clearance (incremental value): Distance
between tool tip (at starting position) and workpiece
surface
ú
Milling depth (incremental value): Distance between
workpiece surface and bottom of pocket
ú
Plunging depth (incremental value):
Infeed per cut. The tool will advance to the depth in
one movement if:
n the plunging depth equals the depth
n the plunging depth is greater than the depth
ú
Feed rate for plunging: Traversing speed of the tool
during penetration
ú Circular radius: Radius of the circular pocket
ú
Feed rate F: Traversing speed of the tool in the
working plane
ú
Direction of the milling path
DR + : climb milling with M3
DR – : up-cut milling with M3
8.3 Cycle for Milling Pockets, Studs and Slots
X
Y
DR+
R
X
Z
Example NC blocks:
36 CYCL DEF 5.0 CIRCULAR POCKET
37 CYCL DEF 5.1 SET UP 2
38 CYCL DEF 5.2 DEPTH -20
39 CYCL DEF 5.3 PLNGNG 5 F100
40 CYCL DEF 5.4 RADIUS 40
41 CYCL DEF 5.5 F250 DR+
kkap8.pm6 30.06.2006, 07:03174
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