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Thread run-in / thread run-out, 6 thr ead and under c ut cy cles – HEIDENHAIN SW 54843x-02 User Manual

Page 259

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HEIDENHAIN MANUALplus 620

259

4.6 Thr

ead and under

c

ut cy

cles

Thread run-in / thread run-out

The slide requires a run-in distance to accelerate to the programmed
feed rate before starting the actual thread, and a run-out distance at
the end of the thread to decelerate again.

If the run-in / run-out length is too short, the thread may not attain the
expected quality. In this case, the MANUALplus displays a warning.