| 摘要 |
A cutting insert for use with a rotary milling cutter tool and having a cutting edge (17) defined between a cutting rake surface (12) and a relief flank (13) and having a base edge (20) defined between said relief flank (13) and a base surface; the cutting edge (17) comprising a plurality of successive component cutting edges (17a,17b,17c) and intermediate edges (19,21) respectively located between successive component cutting edges; each component cutting edge having respective leading and trailing extremities, the trailing extremity of one component cutting edge merging with the leading extremity of a succeeding component cutting edge (17a,17b,17c) via an intermediate edge (19,21), the intermediate edge being directed from the trailing extremity of the one component cutting edge towards the base edge; each normal to an axis of rotation of said cutter tool which passes through a trailing extremity of one component cutting edge intersecting the successive component cutting edge so that during a milling operation, successive component cutting edges overlap. <IMAGE> |
