HEIDENHAIN TNC 426 (280 476) User Manual
Page 298
HEIDENHAIN TNC 426, TNC 430
271
8.4 Cy
cles f
or milling poc
k
e
ts, st
uds and slots
7
7
7
7
Set-up clearance
1
(incremental value): Distance
between tool tip (at starting position) and workpiece
surface
7
7
7
7
Milling depth
2
(incremental value): Distance
between workpiece surface and bottom of pocket
7
7
7
7
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
7
7
7
7
Feed rate for plunging
: Traversing speed during
penetration
7
7
7
7
1st side length
4
: Slot length; specify the sign to
determine the first milling direction
7
7
7
7
2nd side length
5
: Slot width
7
7
7
7
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
12
13
14
15
1