HEIDENHAIN 548431-05, User Manual, Page: 639 / 722

Organization mode of operation | Parameters
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HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
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Thread cutting
Thread cutting – Approach and departure
Approach and departure movements are at rapid traverse (
G0 ).
Approach and departure
Parameter
Approach – External thread ANGA
Approach – Internal thread
ANGI
Departure – External thread ABGA
Departure – Internal thread ABGI
Approach or departure strategy:
1: Move simultaneously in X and Z directions
2: First X, then Z direction
3: First Z, then X direction
Thread cutting – Machining
Machining
Parameter Meaning
Thread starting length GAL Starting length before thread-
ing cut
Thread run-out length GUL Overrun length after threading
cut
GAL
and
GUL
are automatically copied to the thread
attributes Run-in lgth B and End. length P if they have
not been entered as attributes.