Near-dry cutting of difficult-to-cut materials Tool wear characteristics of a cemented carbide tool

Titanium alloys and Inconel 718 are used in airplane bodies. Pure titanium alloys are used in medical equipment. Wet cutting, which generates a significant amount of cutting fluid, is adopted for the cutting of these difficult-to-cut materials. When near-dry cutting, which is environmentally friendly, is used instead, it easily damages tools, and the stock removal rate and machining accuracy worsen. Thus, in this study, we attempted to clarify and develop a reduction method to generate a mechanism for the cutting-edge fracture in the cylindrical cutting of difficult-to-cut materials. We also examined the relationship between the cutting distance and cutting tool wear as a coefficient of friction on a rake face and tool wear when cutting of the difficult-to-cut materials.