发明名称 |
DISC-SHAPED TOOL |
摘要 |
<p>A disc-shaped tool 10 includes a plurality of virtual regions formed such that it is surrounded by two radius lines extending from a rotation center of a disc-shaped base metal 11 and two concentric circles on the base metal disposed around the rotation center. A central angle formed by the two radius lines is equal to or less than 90°, and the number of the virtual regions is 4 to 24. The concentric circle located in a center of an interval of the two concentric circles forming the virtual region is in a range of 0. 6r to 0.8r with respect to the rotation center of the base metal when a maximum gullet bottom radius of the base metal is r. An overlapping of the virtual regions continuously adjoining each other is in a range of 0° to 12°. A minimum neighborhood distance between the adjoining slits is equal to or more than 0. 05r. A ratio of a length of an arc of the central concentric circle in each virtual region with respect to the interval of the two concentric circles in the virtual region is 3 to 6.</p> |
申请公布号 |
CA2542470(C) |
申请公布日期 |
2011.07.19 |
申请号 |
CA20042542470 |
申请日期 |
2004.10.12 |
申请人 |
KANEFUSA KABUSHIKI KAISHA |
发明人 |
NISHIO, SATORU;IINUMA, TOMOYUKI;NAKAJIMA, YASUTAKA |
分类号 |
B27B33/08;B23D47/00;B23D61/02 |
主分类号 |
B27B33/08 |
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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