HEIDENHAIN TNC 410 ISO Programming - Manual (Page 290)

264 8 Programming: Cycles
8.6 SL Cy
cles Gr
ou
p I
U U U U Set-up clearance 1 (incremental value): Distance
between tool tip (at starting position) and workpiece
surface
U U U U Milling depth 2 (incremental value): Distance
between workpiece surface and bottom of pocket
U U U U Plunging depth 3 (incremental value): Infeed per cut
The milling depth does not have to be a multiple of
the plunging depth. The TNC will go to depth in one
movement if:
n the plunging depth is equal to the depth
n
The plunging depth is greater than the milling depth
U U U U Feed rate for plunging: Traversing speed of the tool
in mm/min during penetration
U U U U Finishing allowance: Allowance in the machining
plane
U U U U Rough-out angle : Direction of the roughing-out
movement The rough-out angle is referenced to the
reference axis of the machining plane. Enter the angle
so that the cuts can be as long as possible.
U U U U Feed rate: Feed rate for milling in mm/min
CONTOUR MILLING (Cycle G58/G59)
Application
Cycle G58/G59 CONTOUR MILLING serves for finishing the contour
pocket.
Direction of rotation during contour milling
n In clockwise direction: G58
n
In counterclockwise direction: G59
U U U U Set-up clearance 1 (incremental value): Distance
between tool tip (at starting position) and workpiece
surface
U U U U Milling depth 2 (incremental value): Distance
between workpiece surface and bottom of pocket
U U U U Plunging depth 3 (incremental value): Infeed per cut
The milling depth does not have to be a multiple of
the plunging depth. The TNC will go to depth in one
movement if:
n the plunging depth is equal to the depth
n The plunging depth is greater than the milling depth
U U U U Feed rate for plunging: Traversing speed of the tool
in mm/min during penetration
U U U U Feed rate: Feed rate for milling in mm/min
Example: NC block
N54 G57 P01 2 P02 -15 P03 5 P04 250
P05 +0.5 P06 +30 P07 500 *
X
Z
11
12
13
Example: NC blocks
N54 G58 P01 2 P02 -15 P03 5 P04 250
P05 500*
...
N71 G59 P01 2 P02 -15 P03 5 P04 250
P05 500*
X
Z
11
12
13
Before programming, note the following:
Program a positioning block for the starting point in the
tool axis (set-up clearance above the workpiece surface).