Cycle Parameters - HEIDENHAIN TNC 640 User Manual

7

Cycle parameters

Q215 Machining operation (0/1/2)?: Define
machining operation:
0: Roughing and finishing
1: Only roughing
2: Only finishing
Side finishing and floor finishing are only machined
when the specific allowance (Q368, Q369) is
defined
Q219 Width of slot? (value parallel to the
secondary axis of the working plane): Enter the
slot width. If you enter a slot width that equals the
tool diameter, the TNC will carry out the roughing
process only (slot milling). Maximum slot width for
roughing: Twice the tool diameter. Input range 0 to
99999.9999
Q368 Finishing allowance for side? (incremental):
Finishing allowance in the machining plane. Input
range 0 to 99999.9999
Q436 Feed per revolution? (absolute): Value by
which the TNC moves the tool in the machining
direction per revolution. Input range 0 to
99999.9999
Q207 Feed rate for milling?: Traversing speed of
the tool in mm/min while milling. Input range 0 to
99999.999 alternatively FAUTO, fu, FZ
Q12 Feed rate for roughing?: Traversing speed
of the tool in the working plane. Input range 0 to
99999.9999, alternatively FAUTO, fu, FZ
Q351 Direction? Climb=+1, Up-cut=-1: Type of
milling operation with M3:
+1 = Climb
–1 = Up-cut
PREDEF: The TNC uses the value from the
GLOBAL DEF block (if you enter 0, climb milling is
performed)
Q201 Depth? (incremental): Distance between
workpiece surface and bottom of slot. Input range
-99999.9999 to 99999.9999
250
Fixed Cycles: Contour Pocket | TROCHOIDAL SLOT (Cycle 275, DIN/ISO: G275)
HEIDENHAIN | User's manual for cycle programming | 10/2017