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5
CIRCULAR POCKET (Cycle 252, DIN/ISO: G252)
5.3
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 deined
Q223 Circle diameter?: Diameter of the finished
pocket. Input range 0 to 99999.9999
Q368 Finishing allowance for side? (incremental):
Finishing allowance in the machining plane Input
range 0 to 99999.9999
Q207 Feed rate for milling?: Traversing speed of
the tool in mm/min during milling. Input range 0 to
99999.999 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 pocket Input range
-99999.9999 to 99999.9999
Q202 Plunging depth? (incremental): Infeed per
cut; enter a value greater than 0. Input range 0 to
99999.9999
Q369 Finishing allowance for floor? (incremental):
Finishing allowance for the floor Input range 0 to
99999.9999
Q206 Feed rate for plunging?: Traversing speed of
the tool in mm/min when plunging to depth. Input
range 0 to 99999.999, alternatively FAUTO, FU, FZ
139
HEIDENHAIN | TNC 320 | User's manual for cycle programming | 9/2016
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