Turning tool with tangential cutting line. Concept and constructive solution

Abstract

New ways to increase the performance of metal cutting are constantly being sought. Although diverse and increasingly performing tools are designed and used, especially those with inserts, rarely new processing schema are identified in order to ensure favourable conditions to obtain a higher quality for generated surfaces. The paper presents a particular and innovative processing schema, as well as a specific tool for machining cylindrical surfaces by turning with a tangential cutting line. The active part of the latter is an insert whose cutting line is placed frontally in a vertical plane and considerably inclined in relation to the horizontal plane. In order to validate the concept, a variation of the tool has been developed and tested, one that doesn’t present the option of adjusting the angle of the cutting line. The success thus achieved prompted the design of a tool that allows the cutting line to be tilted at any angle in relation to the horizontal plane. A patent application has been filed in this regard.

Roughness in External Cylindrical Tangential Oblique Turning

“…In this sense, they identified the possibility of turning with tools with a linear active edge arranged tangent to the (external cylindrical) surface to be processed and much inclined in relation to the axis of rotation of the part. They named this processing scheme "turning with inclined tangential linear edge" [12,13].…”