Fixed Cycles: Contour Pocket
7.9 CONTOUR TRAIN (Cycle 25, DIN/ISO: G125)
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HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
Cycle parameters
Q1 Milling depth? (incremental): Distance between
workpiece surface and contour bottom. Input range
-99999.9999 to 99999.9999
Q3 Finishing allowance for side? (incremental):
Finishing allowance in the machining plane Input
range -99999.9999 to 99999.9999
Q5 Workpiece surface coordinate? (absolute):
Absolute coordinate of the top surface of the
workpiece Input range -99999.9999 to 99999.9999
Q7 Clearance height? (absolute): Absolute height at
which the tool cannot collide with the workpiece (for
intermediate positioning and retraction at the end of
the cycle). Input range -99999.9999 to 99999.9999
Q10 Plunging depth? (incremental): Infeed per cut.
Input range -99999.9999 to 99999.9999
Q11 Feed rate for plunging?: Traversing speed
of the tool in the spindle axis. Input range 0 to
99999.9999, 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
Q15 Climb or up-cut? up-cut = -1:
Climb milling: Input value = +1
Up-cut milling: Input value = –1
Climb milling and up-cut milling alternately in several
infeeds: Input value = 0
NC blocks
62 CYCL DEF 25 CONTOUR TRAIN
Q1=-20 ;MILLING DEPTH
Q3=+0 ;ALLOWANCE FOR SIDE
Q5=+0 ;SURFACE COORDINATE
Q7=+50 ;CLEARANCE HEIGHT
Q10=+5 ;PLUNGING DEPTH
Q11=100 ;FEED RATE FOR
PLNGNG
Q12=350 ;FEED RATE F.
ROUGHNG
Q15=-1 ;CLIMB OR UP-CUT
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