HEIDENHAIN TNC 640 (34059x-05) Cycle programming User Manual
Page 158
Fixed Cycles: Pocket Milling / Stud Milling / Slot Milling
5.5
CIRCULAR SLOT (Cycle 254, DIN/ISO: G254)
5
158
TNC 640 | User's Manual Cycle Programming | 1/2015
Plunging strategy Q366: Type of plunging strategy:
0: vertical plunging. The plunging angle (ANGLE) in
the tool table is not evaluated.
1, 2: reciprocal plunging. In the tool table, the
plunging angle
ANGLE for the active tool must be
defined as not equal to 0. Otherwise, the TNC
generates an error message
PREDEF: The TNC uses the value from the GLOBAL
DEF block
Feed rate for finishing Q385: Traversing speed of
the tool during side and floor finishing in mm/min.
Input range 0 to 99999.999; alternatively
FAUTO,
FU, FZ
Feed rate reference (0...3) Q439: Define a
reference for the programmed feed rate:
0
: The feed rate refers to the center point path of
the tool
1
: The feed rate refers to the tool cutting edge only
during side finishing; otherwise, it refers to the
center point path
2
: The feed rate refers to the tool cutting edge
during side
and
floor finishing; otherwise, it refers
to the center point path
3
: The feed rate always refers to the tool cutting
edge
Q206=150
;FEED RATE FOR
PLNGNG
Q338=5
;INFEED FOR FINISHING
Q200=2
;SET-UP CLEARANCE
Q203=+0
;SURFACE COORDINATE
Q204=50
;2ND SET-UP
CLEARANCE
Q366=1
;PLUNGE
Q385=500
;FINISHING FEED RATE
Q439=0
;FEED RATE REFERENCE
9 L X+50 Y+50 R0 FMAX M3 M99