Aspects of cooling lubrication reduction in machining advanced materials

Coolant lubricants are recognized as undesirable factors in metal cutting, especially in machining advanced and difficult-to-cut materials. For both e conomic and ecological reasons, as well as because of increasing legislatio n, efforts are being made to reduce the use of coolants. On account of this , the introduction of dry machining and minimum quantity lubrication (MQL) techniques in machining processes is increasing. The results of the investi gations carried out give an overview of the possibilities for influencing t he machining of advanced materials, e.g. titanium alloys and extreme low-su lphur steels. The research topics focus on cutting tool performance and wea r mechanisms at high cutting speeds while using different lubricants and co oling supply strategies. The investigations and verification experiments co ntribute to increasing process stability and tool life, improvement of mach ined surface finish and avoidance of tensile residual stresses.