Programming technology functions (cycles)
9.2 Rotate
Turning
388 Operating Manual, 01/2015, 6FC5398-8CP40-5BA2
Cut-off (CYCLE92)
Function
The "Cut-off" cycle is used when you want to cut off dynamically balanced parts (e.g. screws,
bolts, or pipes).
You can program a chamfer or rounding on the edge of the machined part. You can machine
at a constant cutting rate V or speed S up to a depth X1, from which point the workpiece is
machined at a constant speed. As of depth X1, you can also program a reduced feedrate FR
or a reduced speed SR, in order to adapt the velocity to the smaller diameter.
Use parameter X2 to enter the final depth that you wish to reach with the cut-off. With pipes,
for example, you do not need to cut-off until you reach the center; cutting off slightly more
than the wall thickness of the pipe is sufficient.
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.
Please refer to the machine manufacturer's specifications.
The part program or ShopTurn program to be processed has been cr
e-
ated and you are in the editor.
Press the "Turning" softkey.
-off” softkey.
-off" input window opens.
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