130 Fixed Cycles: Tapping / Thread Milling
4.9 HELICAL THREAD DRILLING/MILLING (Cycle 265, DIN/ISO: G265)
Cycle parameters
U Nominal diameter Q335: Nominal thread diameter.
Input range 0 to 99999.9999
U Thread pitch Q239: Pitch of the thread. The algebraic
sign differentiates between right-hand and left-hand
threads:
+= right-hand thread
–= left-hand thread
Input range -99.9999 to 99.9999
U Thread depth Q201 (incremental): Distance
between workpiece surface and root of thread.
Input range -99999.9999 to 99999.9999
U Feed rate for pre-positioning Q253: Traversing
speed of the tool in mm/min when plunging into the
workpiece, or when retracting from the workpiece.
Input range 0 to 99999.999 alternatively FMAX, FAUTO,
PREDEF.
U Depth at front Q358 (incremental): Distance
between tool tip and the top surface of the workpiece
for countersinking at the front of the tool. Input range
-99999.9999 to 99999.9999
U Countersinking offset at front Q359 (incremental):
Distance by which the TNC moves the tool center
away from the hole center. Input range 0 to
99999.9999
U Countersink Q360: Execution of the chamfer
0 = before thread machining
1 = after thread machining
U Setup clearance Q200 (incremental): Distance
between tool tip and workpiece surface. Input range
0 to 99999.9999, alternatively PREDEF
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