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ARTICLE

is generated as a by-product from
chemical processes as well as from the Photo: acp
generation of energy from biomass,
thus making it environmentally neutral.
It is transported at room temperature
to the non-wearing circular two-
component nozzle. The CO only
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transforms from a liquid to a solid
state in the form of fine snow crystals
as it leaves the nozzle. The crystals are
then bundled by a circular jacketed jet
of compressed air and advanced to
the process zone at supersonic speed.
The temperature of the medium at this
point can be as low as 78 °C. On one
Cooling and cleaning with the quattroClean system when machining PEEK
hand, the patented technology with the
jacketed jet ensures a constant pressure disposal of cooling lubricants. aluminum. In both cases, productivity
and consistently good cooling results.
could be stepped up by over thirty
On the other hand, only the quantity of External cooling prevents percent by cooling with CO externally
carbon dioxide needed for the desired icing up and facilitates using the acp system. 2
cooling effect is supplied. retrofitting
Compact and targeted
Dry, residue-free machining In contrast with other solutions, control
cooling takes place externally with
The fact that solid-state carbon dioxide the quattroClean system rather than Thanks to its modular concept, the
sublimates at room temperature makes through the tool. The non-abrasive and quattroClean system from acp can be
this a dry process. Consequently, non-toxic jet of snow and compressed easily adapted to customer demands
chips are clean and dry as well as fully air is easy to focus and can be directed and has a very small footprint. Process
recyclable. Dry machining also means exactly where it is needed in the defined parameters, such as the volume flow
that workpieces and machines stay process zone around the cutting edge, for compressed air, or the quantity
much cleaner. In many cases, there is no chips and tool. For this, the CO nozzle of carbon dioxide required, can be
further need to clean workpieces after “travels” with the tool. 2 optimally adjusted to the application
processing. Depending on cleaning concerned.
requirements, a cleaning module can Among other applications, the
be integrated quickly and efficiently quattroClean system is used in serial The duration of the jet for both
downstream of the machining process. productions to lubricate, cool and process parameters can also be
A further advantage of cooling with simultaneously clean machined modified separately. This high degree
CO is that parts, for example for implants and medical components of flexibility enables the system to be 17
2
medical products, are machined free made from PEEK. Another serial used for completely new applications,
of contamination. The low temperature application is in metal processing. as well as for applications which were
also minimizes the risk of a workpiece unsuccessful with standard systems.
deforming. Finally, no costs are incurred Here, the system is used to cool tools
either for maintenance, care or the when machining parts made from www.acp-micron.com | Global MDA Journal | NOV-DEC 2017

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