Title:
CUTTING INSERT, CUTTING TOOL, AND METHOD FOR MANUFACTURING CUT WORKPIECE
Document Type and Number:
WIPO Patent Application WO/2021/005951
Kind Code:
A1
Abstract:
A cutting insert based on one non-limiting aspect of the present disclosure has an upper surface, a lower surface, a side surface, and a cutting edge. The upper surface has a first corner and a first side. The first side extends from the first corner. The upper surface also has a first protrusion and a second protrusion. The first protrusion extends towards the first corner. The second protrusion is positioned between the first corner and the first protrusion. The first protrusion has an inclined surface. The inclined surface is located along the first side. The inclined surface has a first surface and a second surface. The second surface is positioned further away from the first corner than the first surface. The first surface and the second surface: each rise on an increasing incline the further away the surfaces are from the first side: and, as a whole, form a recessed shape.
Inventors:
YAMAGUCHI ERI (JP)
Application Number:
PCT/JP2020/023028
Publication Date:
January 14, 2021
Filing Date:
June 11, 2020
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
B23B27/14; B23B27/22
Domestic Patent References:
| WO2016043029A1 | 2016-03-24 | |||
| WO2009028687A1 | 2009-03-05 | |||
| WO2016017470A1 | 2016-02-04 | |||
| WO2013129083A1 | 2013-09-06 |
Foreign References:
| JP2014180755A | 2014-09-29 | |||
| JP2010069614A | 2010-04-02 |
Attorney, Agent or Firm:
BUNA PATENT ATTORNEYS (JP)
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