HEIDENHAIN TNC 128 (77184x-01) - Manual (Page 418)

418 Drilling, boring and thread cycles
16.12 RIGID T
A
PPING without a floa
ting tap holder NEW (Cy
c
le 207)
16.12 RIGID TAPPING without a
floating tap holder NEW
(Cycle 207)
Cycle run
The TNC cuts the thread without a floating tap holder in one or more
passes.
1 The TNC positions the tool in the spindle axis at rapid traverse
FMAX to the entered set-up clearance above the workpiece
surface.
2 The tool taps to the total hole depth in one movement.
3 Once the tool has reached the total hole depth, the direction of
spindle rotation is reversed and the tool is retracted to the set-up
clearance at the end of the dwell time. If programmed, the tool
moves to the 2nd set-up clearance at FMAX.
4 The TNC brings spindle rotation to a stop at the set-up clearance.