Cut-Off (Cycle92) - Siemens SINUMERIK 840D sl Operating Manual

Programming technological functions (cycles)
10.4 Turning - milling/turning machine
Parameter
H1
DP or
αP
D1 or ND
rev
NN
Hidden parameters
The following parameters are hidden. They are pre-assigned fixed values or values that can
be adjusted using setting data.
Parameter Description
PL Machining plane
VR Return distance
Multiple threads 1 Thread
α0 Starting angle offset
10.4.8

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.
516
Description
Thread depth
Infeed slope flank (inc) or infeed slope (angle)
● Infeed along a flank
● Infeed with alternating flanks
First infeed depth or number of roughing cuts - (only for ∇ and ∇ + ∇∇∇)
Finishing allowance in X and Z – (only for ∇ and ∇ + ∇∇∇)
Number of noncuts - (only for ∇∇∇ and ∇ + ∇∇∇)
Machine manufacturer
Please observe the information provided by the machine manufacturer.
Value Can be set in SD
Defined in MD
52005
No
0°
Operating Manual, 05/2017, A5E40868956
Unit
mm
mm
Degrees
mm
mm
x
Milling