HEIDENHAIN TNC 410 - Manual (Page 184)

171 HEIDENHAIN TNC 410
CONTOUR MILLING (Cycle 16)
Application
Cycle 16 CONTOUR MILLING serves for finishing the contour
pocket.
Before programming, note the following:
Program a positioning block for the starting point in the
tool axis (set-up clearance above the workpiece surface).
The TNC finishes each subcontour separately, even at several
infeed depths.
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 pocket floor
ú Plunging depth (incremental value):
Infeed per cut. The TNC will go to depth in one
movement if:
■ The plunging depth and the milling depth are equal
■ The plunging depth is greater than the milling depth
The milling depth does not have to be a multiple of
the plunging depth.
ú Feed rate for plunging: Traversing speed of the tool in
mm/min during penetration
ú Clockwise rotation:
DR + : Climb milling with M3
DR – : Up-cut milling with M3
ú Feed rate: Feed rate for milling in mm/min
8.6 SL Cycles
X
Z
Example NC blocks:
12 CYCL DEF 16.0 CONTOUR MILLING
13 CYCL DEF 16.1 DIST+2 DEPTH-25
14 CYCL DEF 16.2 PLNGNG+5 F150 DR+ F500