Siemens SINUMERIK 840D Operating Manual page 282

Programming technological functions (cycles)
8.1 Drilling
Parameter Description
Through boring Remaining drilling depth with drilling feedrate
Yes

No

ZR Residual drilling depth for through boring - ("yes", only for through boring)
FR Drilling feedrate for remaining drilling depth - ("yes", only for through boring)
Stock removal Stock removal before thread milling
Yes

No

Return to workpiece surface for stock removal before thread milling.
Thread Direction of rotation of the thread
Right-hand thread

Left-hand thread

F2 Feedrate for thread milling
Table Thread table selection:
without

ISO metric

Whitworth BSW

Whitworth BSP

UNC

Selection - (not Selection of table value: e.g.
for table
M3; M10; etc. (ISO metric)

"Without")
W3/4"; etc. (Whitworth BSW)

G3/4"; etc. (Whitworth BSP)

N1" - 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
When entered per inch, enter the integer in front of the decimal point in the first
"without")
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.
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
282
Operating Manual, 03/2010, 6FC5398-7CP20-1BA0
Unit
mm
mm/min
mm/rev
mm/min
mm/tooth
MODULUS
Turns/"
mm/rev
in/rev
mm
mm
Milling