Siemens SINUMERIK 840D - Page 65

© Siemens AG All rights reserved. SINUMERIK, Manual, 5-axis machining
Key functions for 5-axis machining
3.6
65
CYCLE832 parameters
Machining  Finishing (default)
 Pre-finishing
 Roughing
 Deselection
Calling "Deselection" resets the modified
machine/setting data to the value generated by
the machine manufacturer.
Tolerance_tol.  Chord tolerance
(chord tolerance
should be taken from
the CAM system or
weighted with a factor
of 1.0 to 1.5)
Tolerance of linear/rotary axes, default settings:
→ 0.01 mm/ 0.08° (finishing)
→ 0.05 mm/ 0.4° (pre-finishing)
→ 0.1 mm/ 0.8° (roughing)
→ 0.1 mm/ 0.1° (deselection)
Transformation  TRAORI
 TRAORI(2)
 No
(default)
→ Activate 5-axis transformation
→ Activate machine-manufacturer-specific 5-
axis transformation (optional)
→ Deactivate transformation. CAM programs
with resolved rotary axis positions are sup-
ported.
Adaptation  Yes
 No (default)
→ Subsequent fields can be modified
→ Subsequent fields are not visible.
Activated by machine manufacturer
Compression  COMPOF (default)
 COMPCAD
 COMPCURV
 B SPLINE
→ Compressor off
→ Compressor on, constant acceleration rate
for free-form surfaces
→ Jerk-free for circumferential milling
→ Spline interpolation
Path control  G642 (default)
 G641
 G64
→ Smoothing with single-axis tolerances
→ Programmable smoothing distance
→ Continuous-path mode
In the case of an NC block compressor with
COMPCAD, G642 is permanently selected.
Feedforward
control
 FFWOF SOFT
(default)
 FFWON-SOFT
 FFWOF-BRISK
→ Without feedforward control, with jerk limita-
tion
→ With feedforward control, with jerk limitation
→ Without feedforward control, without jerk lim-
itation
In order for feedforward control (FFWON) and
jerk limitation (SOFT) to be selected, the
machine manufacturer must have optimized the
control or the machining axes.