Siemens SINUMERIK 840D SL Operating Manual page 301

Parameter Description
Selection Selection of table value: e.g.
M3; M10; etc. (ISO metric)
•
W3/4"; etc. (Whitworth BSW)
•
G3/4"; etc. (Whitworth BSP)
•
1" - 8 UNC; etc. (UNC)
•
P Pitch ...
- (selection
in MODULUS: MODULUS = Pitch/π
•
option only for
in turns per inch: Used with pipe threads, for example.
•
table selection
"without")
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
second and third field.
in mm/rev
•
in inch/rev
•
The pitch is determined by the tool used.
αS Starting angle offset - (for rigid tapping only)
(only for G code)
S Spindle speed - (for rigid tapping only)
(only for G code)
Machining The following machining operations can be selected:
1 cut
•
(not for G code
The thread is drilled in one cut without stopping
"with
Chipbreaking
•
compensating
chuck")
The drill is retracted by the retraction amount V2 for chipbreaking.
Stock removal
•
The drill is retracted from the workpiece for stock removal.
D Maximum depth infeed - (only when used without compensating chuck, stock removal
or chipbreaking)
Retraction Retraction distance - (for chipbreaking only)
Manual
•
Retraction distance after each machining step (V2)
Automatic
•
Without retraction distance after each machining step
V2 Retraction distance after each machining step – (only without compensating chuck,
chipbreaking and manual retraction)
Distance by which the drill is retracted for chipbreaking.
V2 = automatic: The tool is retracted by one revolution.
DT (only for G Dwell time at final drilling depth in seconds
code)
SR (only for G Spindle speed for retraction - (only for when a compensating chuck is not used)
code)
Milling
Operating Manual, 02/2012, 6FC5398-7CP40-3BA0
Programming technological functions (cycles)
8.1 Drilling
Unit
MODULUS
Turns/"
mm/rev
in/rev
Degrees
rev/min
mm
mm
s
rev/min
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