Siemens SINUMERIK 828D Operating Manual page 334

Computerized numerical controller for machine tools
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Programming technology functions (cycles)
9.1 Drilling
Parameters
Description
F2
Feedrate for thread milling
Table
Thread table selection:
without
ISO metric
Whitworth BSW
Whitworth BSP
UNC
Selection - (not
Selection, table value: e.g.
for table "With-
M3; M10; etc. (ISO metric)
out")
W3/4"; etc. (Whitworth BSW)
G3/4"; etc. (Whitworth BSP)
N1" - 8 UNC; etc. (UNC)
P
Pitch ...
- (selection
in MODULUS: MODULUS = Pitch/π
only possible for
in turns per inch: Used with pipe threads, for example.
"Table
without selection")
When entered per inch, enter the integer number in front of the decimal point in the
first parameter field and the figures after the decimal point as a fraction in the sec-
ond and third field.
in mm/rev
in inch/rev
The pitch is determined by the tool used.
Z2
Retraction amount before thread milling
The thread depth in the direction of the tool axis is defined using Z2. Z2 is relative to
the tool tip.
Nominal diameter
Milling direction
Climbing: Mill thread in one cycle.
Conventional: Mill thread in one cycle.
Climbing - conventional: Mill thread in two cycles: rough cutting is performed by
conventional milling with defined allowances, then finish cutting is performed with
climb milling with milling feedrate FS.
FS
Finishing feedrate rate - (only for climbing - conventional milling)
334
Operating Manual, 01/2015, 6FC5398-8CP40-5BA2
Unit
mm/min
mm/tooth
MODULUS
Turns/"
mm/rev
in/rev
mm
mm
mm/min
mm/tooth
Turning

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