BOHRWERKZEUG FUER METALLISCHE WERKSTOFFE, KUNSTSTOFFE UND DERGL.

摘要

A boring tool for metal workpieces, plastics and the like, having a borer body (1) and at least two plate-shaped cutting inserts (10a, 10b) which each have at least one main cutting edge (19) starting at a nose, is designed in such a way that a radially external first cutting insert (10a), with an outer nose, is arranged so as to project radially beyond the periphery of the borer body, and a second, radially internal cutting insert (10b), with a partial cutting edge (22) in the area of an allocated nose, is arranged so as to intersect the rotational axis (31) of the borer body. As a result of the special arrangement of the two cutting inserts, the cutting forces acting on them in operation produce a resultant radial-force component (36) directed outwards from the rotational axis of the borer body. ……