Abstract
In this paper, machining performance of driven rotary tool which is expected to apply high efficient cutting for difficult-to-cut materials was investigated and also suitable cutting condition of it was examined. The rotary tool is attached to a milling axis on a multi tasking lathe, the parameters related to the rotary cutting (cutting speed V_w, circumferential velocity ratio V^*, tool inclination angle β, normal rake angle α_n) were independently adjusted. Furthermore, understanding of mechanism of the rotary cutting was deepened by applying of oblique cutting and simulation based on shear angle theory. In the results, it was found that the application of driven rotary cutting into high speed cutting is possible. Temperature of the tool rake face while cutting increase with increase of tool inclination angle. However small tool inclination angle made chip flow angle changed to be negative and chip adhere to machined surface.
