Siemens SINUMERIK 828D Operating Manual page 372

Programming technology functions (cycles)
9.2 Rotate
Parameter
LR
H1
DP
or
αP
D1 or ND
(only for ∇ and
∇ + ∇∇∇)
U
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
Table Thread table selection
G Change in thread pitch per revolution – (only for P = mm/rev
or in/rev):
Without change in thread pitch
XS Segment height, crowned thread
RS Radius crowned thread
D0 Initial plunge depth for reworking the threads
VR Return distance
Multiple threads 1 thread
α0 Starting angle offset
372
Description
Thread run-out (inc)
The thread run-out can be used if you wish to retract the tool obliquely at the end
of the thread (e.g. lubrication groove on a shaft).
Thread depth from thread table (inc)
Infeed slope as flank (inc) – (alternative to infeed slope as angle)
DP > 0: Infeed along the rear flank
DP < 0: Infeed along the front flank
Infeed slope as angle – (alternative to infeed slope as flank)
α > 0: Infeed along the rear flank
α < 0: Infeed along the front flank
α = 0: Infeed at right angle to cutting direction
If you wish to infeed along the flanks, the maximum absolute value of this parame-
ter may be half the flank angle of the tool.
Infeed along the flank
Infeed with alternating flanks (alternative)
Instead of infeed along one flank, you can infeed along alternating flanks to avoid
always loading the same tool cutting edge. As a consequence you can increase
the tool life.
α > 0: Start at the rear flank
α < 0: Start at the front flank
First infeed depth or number of roughing cuts
The respective value is displayed when you switch between the number of rough-
ing cuts and the first infeed.
Finishing allowance in X and Z – (only for ∇ and ∇ + ∇∇∇)
Number of noncuts - (only for ∇∇∇ and ∇ + ∇∇∇)
Value Can be set in SD
Defined in MD
52005
without
0
0 mm
0 mm
0 mm
2 mm
No
0°
Operating Manual, 01/2015, 6FC5398-8CP40-5BA2
Unit
mm
mm
mm
Degrees
mm
mm
x
Turning