Boring (Cycle 202, Din/Iso: G202); Cycle Run - HEIDENHAIN TNC 640 User Manual

Fixed Cycles: Drilling | BORING (Cycle 202, DIN/ISO: G202)
3.5

BORING (Cycle 202, DIN/ISO: G202)

Cycle run

1 The TNC positions the tool in the tool axis at rapid traverse
FMAX to set-up clearance above the workpiece surface.
2 The tool drills to the programmed depth at the feed rate for
plunging.
3 If programmed, the tool remains at the hole bottom for the
entered dwell time with active spindle rotation for cutting free.
4 The TNC then orients the spindle to the position that is defined
in parameter Q336.
5 If retraction is selected, the tool retracts in the programmed
direction by 0.2 mm (fixed value).
6 The tool then retracts to set-up clearance at the retraction rate,
and from there—if programmed—to the 2nd set-up clearance at
FMAX. If Q214=0 the tool point remains on the wall of the hole.
7 The TNC finally positions the tool back at the center of the hole.
HEIDENHAIN | User's manual for cycle programming | 10/2017
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