Gjennomverktøkjøling

Gjennomverktøkjøling is a Norwegian term that translates to "through-tool cooling" or "through-spindle cooling" in English. It refers to a machining process where a coolant is delivered directly through the interior of a cutting tool, such as a drill bit or milling cutter, to the cutting edge. This method of coolant delivery is distinct from external coolant application, where the fluid is sprayed onto the tool and workpiece from the outside.

The primary benefit of gjennomverktøkjøling is its effectiveness in removing heat generated during the cutting process. By delivering coolant directly to the point of friction, it significantly lowers the temperature of both the tool and the workpiece. This enhanced cooling helps to extend tool life, reduce the risk of thermal damage to the workpiece, and improve surface finish. Furthermore, the high-pressure coolant flow can help to flush away chips and swarf from the cutting zone, preventing them from accumulating and interfering with the machining operation.

Gjennomverktøkjøling requires specialized tooling and machinery equipped with internal coolant channels and a high-pressure coolant supply system. It is particularly beneficial in demanding machining applications, such as high-speed machining, drilling deep holes, or working with difficult-to-machine materials like titanium or stainless steel. The increased efficiency and improved part quality often associated with through-tool cooling can lead to reduced cycle times and overall cost savings in manufacturing.