Title:
CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2018/003272
Kind Code:
A1
Abstract:
A cutting tool according to one aspect of the present invention comprises a base material and a diamond layer that covers the base material. This cutting tool has a rake face, a flank continuous with the rake face, and a cutting edge configured from the ridge line between the rake face and the flank. The rake face has a first rake face and a second rake face disposed between the first rake face and the flank. The angle formed by the second rake face and the rake face-side face of the base material is a negative angle. The second rake face is formed on the diamond layer.
Inventors:
KOBAYASHI YUTAKA (JP)
KAZAHAYA KATSUO (JP)
KAZAHAYA KATSUO (JP)
Application Number:
PCT/JP2017/016710
Publication Date:
January 04, 2018
Filing Date:
April 27, 2017
Export Citation:
Assignee:
SUMITOMO ELECTRIC HARDMETAL CORP (JP)
International Classes:
B23B27/00; B23B27/14; B23B27/20; B23C5/02; B23C5/10; B23C5/16
Foreign References:
| JP2007307673A | 2007-11-29 | |||
| JP2005103658A | 2005-04-21 | |||
| JP2008100300A | 2008-05-01 | |||
| JP5499771B2 | 2014-05-21 | |||
| JP2008142890A | 2008-06-26 |
Other References:
See also references of EP 3479938A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
Download PDF: