The OTEC stream finishing process offers much shorter processing times compared to conventional procedures. It also allows users to automate processes easily without jeopardising reliability. The shorter cycle times mean that the systems can be integrated smoothly into industrial production lines.
In this new process, one or more workpieces
are clamped in a holder and immersed in the
rotating process drum fi lled with grinding or
polishing media. The actual processing motion
is the result of the grinding or polishing media
fl owing around the workpiece, combined with
the rotation of the workpiece itself.
In stream fi nishing, workpieces can be deburred,
smoothed and polished in a single process.
The technology can also be used to round workpiece
edges. This is made possible by the high
fl ow speeds of the grinding or polishing media
achieved using SF technology. The arising
forces press the fi ne polishing media granules
into tiny, diffi cult-to-access areas like grooves
and notches. This enables roughness depths
of below Ra 0.03 μm.
In addition, contour-controlled
motions help process certain areas
with greater precision. To ensure even abrasion
across the entire workpiece, this motion
occurs alongside standard processing and is
automatically monitored. The machine‘s special
design allows the fl ow angle of the grinding
or polishing media to be adjusted. This enables
control of material abrasion to the micrometre
level. This combination of high automation, powerful
processing forces and quick workpiece
changing during the procedure allow for fast
and effi cient workpiece processing.
We get you to the finish with μ precision.In series production,
reliably repetitive results and costeffectiveness
deliver a real competitive edge.
This fast mass fi nishing process ensures extremely
short process times, even with complex
shapes. Parts can be deburred, rounded, smoothed
or polished in a single work step. This process
also effortlessly achieves roughness depths of far
below 0.1 μm.
Rounding cutting edges
Rounding a tool’s cutting edge by even a small
amount like 15 μm can stabilise the edge and
ensure a perfect, burr-free geometry. This protects
the edge against breakages and signifi -
cantly improves both the service life and process
reliability of the tool.
With smoothing, the roughness of the surface
is reduced, i.e. the unevenness in the peaks
on the surface are removed. The benefits this
brings include reduced friction, higher contact
ratios and less wear. A further benefit is the removal
of droplets after PVD coating.
In addition to improving the appearance of the
workpiece surface, polishing also improves the
physical properties of the surface. A polished chip
fl ute on carbide cutters and drill bits can increase
the maximum cutting speed, for example, as well
as boosting coating adhesion. A polished forming
die will have a longer service life and lower friction
ZOTEC stream fi nishing machines offer versatile,
fl exible and effi cient surface fi nishing for
small or large series production. If required,
they can be
fi tted with the right automation
an OTEC SF, not only are you choosing
uncompromising German quality, but a secure
future too.With a comprehensive range of standard equipment,
optional extras and countless automation
machines help you scale your production.
You can increase operating comfort and process
reliability further with optional modules.
Immersion depth control, for example, controls
the immersion depth of the workpiece depending
on the process. It can be programmed either
fully automatically. Wet processing
machines feature a dosing unit that allows users
to adjust the compound concentration via the
Variant 1: Decentralised lifting unit
Here, all holders and workpieces are
immers ed simultaneously. This version
is mostly used with manual loading and
Variant 2: Centralised lifting unit
All lifting units are immersed individually.
One workpiece is changed while the others
are processed. This variant results in shorter
downtimes and is mostly used with automatic
loading and unloading.