Radius end mill and cutting work method |
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| 申请号 | US15032521 | 申请日 | 2014-11-08 | 公开(公告)号 | US09901995B2 | 公开(公告)日 | 2018-02-27 |
| 申请人 | MITSUBISHI HITACHI TOOL ENGINEERING, LTD.; | 发明人 | Makoto Baba; | ||||
| 摘要 | Radius mill and cutting work method that includes a plurality of end cutting edges arrayed around a central axis O and a plurality of arc-shaped radius end cutting edges continuous with the end cutting edges on an outer peripheral side in a radial direction. The end cutting edge is divided into an inner peripheral side end cutting edge and an outer peripheral side end cutting edge in a radial direction. Second surfaces of the plurality of inner peripheral side end cutting edges are coupled at a part close to the axis O. A region of coupled second surfaces is continuous from a region including the axis O to outer peripheral sides of respective inner peripheral side end cutting edges in a radial direction in a strip shape. A width of the strip-shaped region gradually enlarges from axis O side to an outer peripheral side in a radial direction. | ||||||
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| 说明书全文 | |||||||
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