cles in CYCLE mode
5
© Siemens AG, 2002. All rights reserved
SINUMERIK 840D/810D Operator's Guide ManualTurn (BAM) – 08.02 Edition 5-81
5.2 Turning cycles in CYCLE mode
5.2.1 Thread cutting
Function
The "Thread" cycle allows you to produce cylindrical/tapered external
and internal threads with a variable lead, as well as transversal
threads. The threads may be single or multi-turn.
Infeed is automatic. You can select one of two infeed variants, i.e.
constant infeed per cut and constant cutting cross-section.
Whether the thread is left-handed or right-handed is determined by the
rotational direction of the spindle and the feed direction.
This cycle can only be applied on machine tools that have a speed-
controlled spindle with position measuring system.
Parts program management
When you select the cycle "Thread" from the extended soft key bar,
the menu "Directory" offers you the option Parts program manage-
ment. You can store parameterized dialog forms in this directory as a
file and later call them up again (see Section "Parts Program
management").
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