HEIDENHAIN TNC 640 (34059x-04) Cycle programming - Manual (Page 236)

Fixed Cycles: Multipass Milling
10.1 Fundamentals
10
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TNC 640 | User's Manual Cycle Programming | 3/2014
10.1 Fundamentals
Overview
The TNC offers four cycles for machining surfaces with the
following characteristics:
Flat, rectangular surfaces
Flat, oblique-angled surfaces
Surfaces that are inclined in any way
Twisted surfaces
Cycle Soft key Page Group of
cycles
230 MULTIPASS
MILLING
For flat rectangular
surfaces
237 SPECIAL
CYCLES /
OLD
CYCLES
231 RULED SURFACE
For oblique, inclined or
twisted surfaces 239 SPECIAL
CYCLES /
OLD
CYCLES
232 FACE MILLING
For level rectangular
surfaces, with indicated
oversizes and multiple
infeeds 243 SPECIAL
CYCLES
233 FACE MILLING
For level rectangular
surfaces, if necessary
with lateral limitations,
with indicated
oversizes and multiple
infeeds 248 POCKETS/
STUDS/
SLOTS