Cutting insert, cutting tool, and method of manufacturing machined product |
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| 申请号 | US15037153 | 申请日 | 2014-11-18 | 公开(公告)号 | US10058935B2 | 公开(公告)日 | 2018-08-28 |
| 申请人 | KYOCERA Corporation; | 发明人 | Hirohisa Ishi; | ||||
| 摘要 | A cutting insert according to an embodiment has a lower surface, an upper surface, a side surface disposed between the lower surface and the upper surface, a pair of corner cutting edges located along an intersection of the upper surface and the side surface, and a major cutting edge located between the pair of corner cutting edges. The major cutting edge has a downwardly dented curvilinear part and a pair of straight parts respectively extending from the curvilinear part toward the pair of corner cutting edges in a side view. A portion of the curvilinear part located lowermost is close to one corner cutting edge in the side view. | ||||||
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| 说明书全文 | |||||||
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