发明名称 |
CUTTING INSERT, AND CUTTING METHOD |
摘要 |
A cutting insert, wherein: a cutting edge part having a quadrangular shaped cutting face, which is provided with a pair of side cutting edges extending in a longitudinal direction of an insert body, and a front cutting edge between ends of the side cutting edges that extends in a direction that intersects the longitudinal direction, is formed at an end of the insert body having a bar-shape; and viewed from a direction facing the cutting face perpendicularly to the longitudinal direction, at least one of a pair of corner edges where the side cutting edge and the front cutting edge intersect is formed in a convex shape such that it has a point of inflection at which, after a tangent line that makes contact with the corner edge rotates in a direction extending in the longitudinal direction along the corner edge from the front cutting edge, its direction of rotation changes, and it joins the side cutting edge. |
申请公布号 |
EP2140959(B1) |
申请公布日期 |
2016.09.28 |
申请号 |
EP20080740640 |
申请日期 |
2008.04.18 |
申请人 |
MITSUBISHI MATERIALS CORPORATION |
发明人 |
NAGAYA, HIDEHIKO;ASO, NORIO;IMAI, YASUHARU |
分类号 |
B23B27/14;B23B27/00;B23B27/04 |
主分类号 |
B23B27/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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