Title:
CUTTING INSERT
Document Type and Number:
WIPO Patent Application WO/2019/087496
Kind Code:
A1
Abstract:
In this cutting insert, surfaces involved in cutting are formed from a cBN-based sintered body, ceramic or cermet, and the cutting insert includes a rake face, a flank, a chamfer disposed between the rake face and the flank, and a cutting edge formed from a ridge line in a position in which the flank and the chamfer intersect, wherein the cutting edge includes a push-processing cutting edge portion, a pull-processing cutting edge portion, and a connecting cutting edge portion disposed between the push-processing cutting edge portion and the pull-processing cutting edge portion, and the width of the chamfer disposed along the connecting cutting edge portion is the smallest of the chamfers disposed along the cutting edge.
Inventors:
MOROGUCHI HIRONARI (JP)
KUKINO SATORU (JP)
KUKINO SATORU (JP)
Application Number:
PCT/JP2018/029026
Publication Date:
May 09, 2019
Filing Date:
August 02, 2018
Export Citation:
Assignee:
SUMITOMO ELECTRIC HARDMETAL CORP (JP)
International Classes:
B23B27/14; B23B27/00; B23B27/20
Domestic Patent References:
| WO2016189935A1 | 2016-12-01 | |||
| WO2007039944A1 | 2007-04-12 | |||
| WO2016043127A1 | 2016-03-24 |
Foreign References:
| JPH08155702A | 1996-06-18 | |||
| JP2015091627A | 2015-05-14 | |||
| JP2017210514A | 2017-11-30 | |||
| JP2002192407A | 2002-07-10 |
Other References:
See also references of EP 3527310A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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