smart.Turn units | Units – Centric drilling
2
HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
107
Centric tapping unit
The unit cuts axial threads using stationary tools.
Unit name: G73_ZENTR / cycle: G73
Further information: "Tapping G73", Page 376
Cycle form:
Z1: Start point drill
Z2: End point drill
NS: Starting block no. of contour – beginning of contour
section
X: Start point drill (diameter value; range: –2 mm < X < 2 mm;
default: 0)
F1: Thread pitch
B: Run-in lgth, to achieve the programmed speed and feed rate
(default: 2 * Thread pitch F1)
L: Retract length with use of floating tap holders (default: 0)
SR: Return speed (default: tapping speed)
SP: Chip breaking depth
SI: Retraction distance
Global form:
G14: Tool change point
No axis
0: Simultaneously
1: First X, then Z
2: First Z, then X
3: Only X
4: Only Z
5: Only Y (machine-dependent)
6: Simultaneous w/ Y (machine-dependent)
CLT: Coolant
0: Without
1: Coolant 1 on
2: Coolant 2 on
SCK: Safety clearance in infeed direction during drilling and
milling operations
G60: Protection zone – protection zone monitoring during
drilling
0: Active
1: Inactive
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