Title:
CUTTING INSERT, CUTTING TOOL, AND METHOD FOR PRODUCING CUT ARTICLE
Document Type and Number:
WIPO Patent Application WO/2015/076232
Kind Code:
A1
Abstract:
A cutting insert (1) according to one embodiment is equipped with a bottom surface (2), a top surface (3), a lateral surface (4) provided between the bottom surface (2) and the top surface (3), a pair of corner cutting blades (5) positioned at the intersection of the top surface (3) and the lateral surface (4), and a principal cutting blade (6) positioned between the pair of corner cutting blades (5). When seen from a lateral-surface view, the principal cutting blade (6) has a downwardly recessing curved section (61) and a pair of straight sections (62) extending from the curved section (61) toward the pair of corner cutting blades (5). When seen from a lateral-surface view, a section (6p) positioned lowest in the curved section (61) is nearer one (5b) of the corner cutting blades than the other.
Inventors:
ISHI HIROHISA (JP)
Application Number:
PCT/JP2014/080425
Publication Date:
May 28, 2015
Filing Date:
November 18, 2014
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
B23B27/14; B23C5/20; B23C5/06; B23C5/10
Domestic Patent References:
| WO2013077443A1 | 2013-05-30 | |||
| WO2010137663A1 | 2010-12-02 | |||
| WO2013001907A1 | 2013-01-03 |
Foreign References:
| JP2002539958A | 2002-11-26 | |||
| JPH09216113A | 1997-08-19 | |||
| JPH11347826A | 1999-12-21 |
Other References:
See also references of EP 3072618A4
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