When working with machining centers of any sort, proper cooling is critical to producing in-spec parts. Inadequate cooling deteriorates the tooling and can lead to defective or rejected parts, so most of us try to avoid overheating whenever possible. Traditionally, the best way to cool the cutting blade or bit of a machining center was to use liquid coolant, routing the liquid to the required areas of the machine, and then reclaiming the coolant to be used again while cleaning the finished parts of the coolant residue.
This process, while effective, creates a considerable amount of cleanup, both for the machining area, and for the machined parts. Because of this, dry cooling can provide distinct advantages when compared to a traditional setup.
In the setup shown above, a gang drill with 24 drill heads cuts into various aluminum profiles. As shown in the picture, the process generates a significant strings and chips, and the current setup using liquid cooling results in coolant outside of the desired workspace (see the red arrow in the bottom right, highlighting liquid coolant on the floor – a potential safety hazard). The end user in this case was in search of a way to maintain cooling for the drills while eliminating the liquid spillover. The solution, was the EXAIR Cold Gun model 5315 with two cold outlets
When faced with the potential to outfit a machine with a completely new cooling system, we’ve found that a short test can go a long way toward implementing a proper solution. So, testing a single Cold Gun with two outlets can be tested on a single drill head, with the results reviewed before installing additional units onto the machine. Our Application Engineering team is available to assist this customer every step of the way with product selection, installation and testing results, and full machine outfitting.
Providing a viable solution and service to the customer have opened the door to removing liquid cooling from this machine. This will eliminate cleaning of the aluminum profiles after machining, thus reducing the total input required to produce a finished product, and it will eliminate the safety hazard of having liquid coolant on the floor surrounding the machine as well.
If you have a similar application or would like to speak to an Application Engineer about dry cooling, give us a call – we’ll be happy to help.