Dry cutting is an alternative to conventional cutting processes concerning economic and ecological point of views. However, the cooling and the tool wear cause problems. Turning tests showed that a closed inner cooling system might be a solution and that the tool life can be prolonged by over 100 percent. The results validated the achievement potential of inner cooling systems. The research results of the analysis of scanning electron microscope pictures yield a significant influence on the whole cutting process. The basic closed inner cooling system at the IWF is to be developed by means of analytic approaches. The aim is an increase in efficiency with regard to the cooling performance. With the use of this inner cooling system, dry machining can be applied more efficiently, initially during turning and later on during all other manufacturing processes with a geometrically defined cuffing edge.
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