Siemens SINUMERIK 828D Manual page 105

Important functions for 3- to 5-axis machining
Smoothing Yes (_TOP_SURFACE_SMOOTH_ON)
(can be set via setting data item)
No (_TOP_SURFACE_SMOOTH_OFF)
Multi-axis No
program (can be set via setting data item)
Yes
ORI tolerance OTOL tolerance
(approx. factor 10 of the linear tolerance)
CYCLE832 is based on the use of G1 blocks, also G0, G2 and G3, depending on the
machine setting.
When using the ORI tolerance, only for Advance Surface, after calling CYCLE832 does
orientation smoothing activation have to be programmed using ORISON. You should not
program ORISON for 5-axis hobbing/circumferential milling as this can result in contour
errors. ORISON is deactivated automatically for Top Surface (COMPSURF).
CYCLE832 structure
CAM systems frequently specify via the postprocessor that CYCLE832 is output directly in the
geometry program. Therefore, make sure that CYCLE832 is programmed in the geometry
program for your start program. CYCLE832 is then automatically selected and deselected in the
subprogram. The start program then only contains the calls of the subprograms with the
geometry data.
This means that you can apply the cycle to the complete geometry or - depending on the
transparency of the CAM program - to individual program sections or free-form surfaces.
Program CYCLE832 after the tool change. After calling CYCLE832, only the geometry data
should still be programmed.
© Siemens AG All rights reserved SINUMERIK, Manual, Mold-Making with 3- to 5-Axis Simultaneous Milling
Yes: Optimized path within the contour
tolerance
Inhomogeneous areas in the path in the
standard tolerance range of 10 µm are
reliably smoothed. The workpiece assumes
a shiny surface.
No: Close-contour path
The specified contour is precisely followed.
Engraving and geometries with a depth <=
0.005 mm = 5 µm are visible on the
workpiece surface.
No: For 3-axis programs without rotary
axes. The value 1 is entered automatically
Yes: For multi-axis programs with rotary
axes. The orientation smoothing is
activated; ORI tolerance > 0° must be
entered.
Has two meanings:
Smoothing tolerance of the rotary axes
for 5-axis transformation TRAORI
Orientation tolerance for the smoothing
of vectors with active ORISON
3.6
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