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

Page 130

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Fixed Cycles: Tapping / Thread Milling

4.9

HELICAL THREAD DRILLING/MILLING (Cycle 265, DIN/ISO: G265)

4

130

TNC 640 | User's Manual Cycle Programming | 3/2014

2nd set-up clearance Q204 (incremental):
Coordinate in the spindle axis at which no collision
between tool and workpiece (fixtures) can occur.
Input range 0 to 99999.9999
Feed rate for countersinking Q254: Traversing
speed of the tool during countersinking in mm/min.
Input range 0 to 99999.9999 alternatively

FAUTO,

FU
Feed rate for milling
Q207: Traversing speed of
the tool in mm/min while milling. Input range 0 to
99999.999 alternatively

FAUTO

NC blocks

25 CYCL DEF 265 HEL. THREAD DRLG/

MLG
Q335=10

;NOMINAL DIAMETER

Q239=+1.5

;THREAD PITCH

Q201=-16

;THREAD DEPTH

Q253=750

;F PRE-POSITIONING

Q358=+0

;DEPTH AT FRONT

Q359=+0

;OFFSET AT FRONT

Q360=0

;COUNTERSINKING

Q200=2

;SET-UP CLEARANCE

Q203=+30

;SURFACE COORDINATE

Q204=50

;2ND SET-UP

CLEARANCE

Q254=150

;F COUNTERBORING

Q207=500

;FEED RATE FOR

MILLING