Title:
END MILL AND METHOD OF MANUFACTURING END MILL
Document Type and Number:
WIPO Patent Application WO/2020/170625
Kind Code:
A1
Abstract:
The purpose of the present invention is to precisely process a surface-shaped portion having a fillet. An end mill (2) includes a bottom blade (2A) having a protruding curved surface and formed in an arc shape, and a radius blade (2B) provided in a corner portion and formed in an arc shape, wherein the radius of the arc portion of the radius blade (2B) matches the radius of the arc portion of a fillet-shaped portion (53) of a shape to be processed, and the radius of the arc portion of the bottom blade (2A) is equal to or smaller than the minimum radius of the arc portion of a surface-shaped portion (52) adjacent to the fillet-shaped portion (53).
Inventors:
ETO JUN (JP)
UNNO HIROKAZU (JP)
TANAKA TOSHIYUKI (JP)
UNNO HIROKAZU (JP)
TANAKA TOSHIYUKI (JP)
Application Number:
PCT/JP2020/000275
Publication Date:
August 27, 2020
Filing Date:
January 08, 2020
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
B23C3/16; B23C5/10
Domestic Patent References:
| WO2014068710A1 | 2014-05-08 |
Foreign References:
| US20160256940A1 | 2016-09-08 | |||
| JP2002059308A | 2002-02-26 | |||
| JP2007090489A | 2007-04-12 | |||
| US20050025584A1 | 2005-02-03 | |||
| US4260304A | 1981-04-07 | |||
| CN205111505U | 2016-03-30 | |||
| CN105665800A | 2016-06-15 |
Attorney, Agent or Firm:
FUJITA, Takaharu (JP)
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