acp cooling and cleaning with the quattroClean technology when machining aluminum. The patented technology with the jacketed jet is designed for constant pressure. Only the quantity of carbon dioxide needed for the desired cooling effect is supplied.
acp cooling and cleaning with the quattroClean system when machining PEEK. The quattroClean system is also used to simultaneously lubricate, cool and clean machined implants and medical components made from PEEK.
"By using CO2 as a process coolant, the cost-efficiency of machining can be significantly improved," said an acp spokesperson. With its quattroClean system, acp has developed a solution suitable for use in serial productions. "It increases productivity by around a third when machining workpieces made from PEEK and aluminum. A further advantage is that components and machines stay much cleaner," continued the spokesperson.
In recent years, the use of CO2 as a coolant for machining processes has become much more popular as an alternative to conventional cooling lubricant concepts. One of the reasons for this is the higher rate of material removal, which increases productivity and also reduces tool wear and the associated downtimes. "The so-called cryogenic cooling method with carbon dioxide therefore decreases production costs. With its quattroClean snow jet technology, acp systems AG (acp) offers a cooling system that has proved its worth in serial productions. It can also be integrated into CNC machines and machining centers," said the spokesperson.
The quattroClean system works with liquid carbon dioxide. It is transported at room temperature to the non-wearing circular two-component nozzle. The CO2 only 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. The patented technology with the jacketed jet is designed to provide a constant pressure and consistently good cooling results. Only the quantity of carbon dioxide needed for the desired cooling effect is supplied.
The fact that solid-state carbon dioxide sublimates at room temperature makes this a dry process. Consequently, chips are clean and dry as well as fully recyclable. Dry machining also means that workpieces and machines stay much cleaner. In many cases, there is no further need to clean workpieces after processing. Depending on cleaning requirements, a cleaning module can be integrated quickly and efficiently downstream of the machining process. A further advantage of cooling with CO2 is that parts, for example for medical products, are machined free of contamination. The low temperature also minimizes the risk of a workpiece deforming. "Finally, no costs are incurred either for maintenance, care or the disposal of cooling lubricants," said the spokesperson.
Cooling takes place externally with the quattroClean system rather than through the tool. The non-abrasive and non-toxic jet of snow and compressed air is easy to focus and can be directed exactly where it is needed in the defined process zone around the cutting edge, chips and tool. For this, the CO2 nozzle "travels" with the tool.
Among other applications, the quattroClean system can be used in serial productions to lubricate, cool and simultaneously clean machined implants and medical components made from PEEK.
Another serial application is in metal processing. Here, the system is used to cool tools when machining parts made from aluminum.
Due to its modular concept, the quattroClean system from acp can be adapted to customer demands and has a small footprint. Process parameters, such as the volume flow for compressed air, or the quantity of carbon dioxide required, can be optimally adjusted to the application concerned.
The duration of the jet for both process parameters can also be modified separately. This flexibility enables the system to be used for completely new applications, as well as for applications which were unsuccessful with standard systems.
For more information contact:
acp systems AG
mail@acp-micron.com
www.acp-micron.com