Title:
CUTTING INSERT, CUTTING TOOL, AND METHOD OF PRODUCING MACHINED PRODUCT
Document Type and Number:
WIPO Patent Application WO/2019/047894
Kind Code:
A1
Abstract:
Provided are a cutting insert, a cutting tool, and a method of producing a machined product. The cutting insert (1) comprises: an upper surface (3); a lower surface (5); and a side surface (7) having a first surface (7a) and a second surface (7b) arranged oppositely between the upper surface (3) and the lower surface (5); and a first cutting edge (9a) located at least a part of a portion where the upper surface (3) intersects with the first surface (7a). The lower surface (5) has a plurality of grooves (11) extending from the first surface (7a) side toward the second surface (7b) side. When viewed from the lower surface (5) side, an angle formed by a ridge line intersecting the upper surface (3) and the first surface (7a) with an imaginary extension line of the plurality of grooves (11) is set to be θ1; and an angle formed by a ridge line intersecting the lower surface (5) and the first surface (7a) with the imaginary extension line is set to be θ2, θ2＞θ1.
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Inventors:
ZHANG ZHANLONG (CN)
Application Number:
PCT/CN2018/104371
Publication Date:
March 14, 2019
Filing Date:
September 06, 2018
Export Citation:
Assignee:
KYOCERA CORP (JP)
ZHANG ZHANLONG (CN)
ZHANG ZHANLONG (CN)
International Classes:
B23B27/16
Foreign References:
| CN100445002C | 2008-12-24 | |||
| CN106141271A | 2016-11-23 | |||
| CN101522349A | 2009-09-02 | |||
| JP2014046448A | 2014-03-17 |
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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