Siemens SINUMERIK 840D sl Operating Manual page 382

Programming technology functions (cycles)
10.2 Rotate
Approach/retraction
1. The tool first moves to the starting point calculated internally in the cycle at rapid traverse.
2. The chamfer or radius is machined at the machining feedrate.
3. Cut-off down to depth X1 is performed at the machining feedrate.
4. Cut-off is continued down to depth X2 at reduced feedrate FR and reduced speed SR.
5. The tool moves back to the safety distance at rapid traverse.
If your turning machine is appropriately set up, you can extend a workpiece drawer (part
catcher) to accept the cut-off workpiece. Extension of the workpiece drawer must be enabled
in a machine data element.
Procedure
Parameters, G code program
PL Machining plane
SC Safety clearance
F Feedrate
Parameter
DIR
(only for G code)
S
V
SV
X0
Z0
FS or R
382
Machine manufacturer
Please refer to the machine manufacturer's specifications.
1. The part program or ShopTurn program to be processed has been cre‐
ated and you are in the editor.
2. Press the "Turning" softkey.
3. Press the "Cut-off" softkey.
The "Cut-off" input window opens.
mm
*
Description
Direction of spindle rotation
Spindle speed
Constant cutting rate
Maximum speed limit - (only for constant cutting rate V)
Reference point in X ∅ (abs, always diameter)
Reference point in Z (abs)
Chamfer width or rounding radius
Parameters, ShopTurn program
T Tool name
D Cutting edge number
F Feedrate
S / V Spindle speed or constant cutting
rate
Operating Manual, 05/2017, A5E40868721
mm/rev
rpm
m/min
Unit
rev/min
m/min
rev/min
mm
mm
mm
Turning