| 摘要 |
A cutting insert (10) includes a generally polygonal body having minor flank faces (12a, 12b), major flank faces (14a, 14b), chip breaking faces, major cutting edges (22a, 22b) formed at the intersection of the first faces (20a, 20b) and the major flank faces (14a, 14b), and minor cutting edges (24a, 24b) formed at the intersection of the first faces and the minor flank faces. The major cutting edges (22a, 22b) are generally orthogonal to each other such that each major cutting edge can be alternately exposed for use. In one embodiment, both the major (22a, 22b) and minor (24a, 24b) cutting edges are generally linear. In another embodiment, the major cutting edges (22a, 22b) are generally curvilinear and the minor cutting edges (24a, 24b) are generally linear. |
