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

Parameter
X3
Z3
LW
LR
H1
DP or αP
D1 or ND
rev
NN
VR
Multiple threads
8.4.8

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.
Milling
Operating Manual, 09/2011, 6FC5398-7CP40-2BA0
Description
End point X ∅ (abs) or
•
End point 3 in relation to X2 (inc) or
•
Thread taper 3
•
End point Z ∅ (abs) or
•
End point with reference to Z2 (inc)
•
Thread run-in
Thread run-out
Thread depth
Infeed slope (flank) 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 ∇ + ∇∇∇)
Return distance
No
α0 Starting angle offset
Yes
N Number of thread turns
DA Thread changeover depth (inc)
Programming technological functions (cycles)
8.4 Turning - only for G code programs
Unit
mm
Degrees
mm
mm
mm
mm
mm or
degrees
mm
mm
mm
Degrees
mm
403