cles in CYCLE mode
5
© Siemens AG, 2002. All rights reserved
SINUMERIK 840D/810D Operator's Guide ManualTurn (BAM) – 08.02 Edition 5-91
5.2.5 Thread undercuts
Function
These cycles are suitable for machining freely definable thread
undercuts as well as thread undercuts to DIN 76 for parts with a metric
ISO thread.
Parts program
management
When you select the thread undercut cycle "Undercut Thread" on the
extended soft key menu a Parts program management function is
activated in the "Directory" menu. You can store parameterized dialog
forms in this directory as a file and later call them up again (see
Section "Parts program management").
Sequence of operations
Precondition
CYCLE mode is selected.
You can either select a thread undercut according to DIN 76:
Undercut
DIN thread
Select the soft key labeled "Undercut DIN thread".
or select the freely definable thread undercut:
Undercut
thread
Select the soft key labeled "Undercut thread".
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