Title:
CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2024/029627
Kind Code:
A1
Abstract:
This cutting tool comprises a rake face (1), a flank (2), a cutting edge (3) which is disposed on a ridge line portion where the rake face (1) and the flank (2) are connected, and which has a V-shape in a plan view in which the rake face (1) is seen from the front, and a chip breaker (4) disposed on the rake face (1), wherein: the chip breaker (4) includes a first projecting portion (41) projecting upward from the rake face (1), second projecting portions (42) which project upward from the rake face (1), are disposed rearward of the first projecting portion (41), and extend toward the front with increasing distance in left and right directions from a bisector of the cutting edge (3), and a third projecting portion (43) which projects upward from the rake face (1) and is disposed in front of the first projecting portion (41); the first projecting portion (41) and the second projecting portion (42) project further upward than the cutting edge (3); and the third projecting portion (43) has a smaller height in a vertical direction than the first projecting portion (41).
Inventors:
OTSUKA SHUMPEI (JP)
KUMAGAI SATOSHI (JP)
KUMAGAI SATOSHI (JP)
Application Number:
PCT/JP2023/028607
Publication Date:
February 08, 2024
Filing Date:
August 04, 2023
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
B23B27/22
Domestic Patent References:
| WO2013129016A1 | 2013-09-06 | |||
| WO2014192798A1 | 2014-12-04 | |||
| WO2018042957A1 | 2018-03-08 |
Foreign References:
| JP2009131929A | 2009-06-18 | |||
| JP2010069614A | 2010-04-02 | |||
| JP2022135489A | 2022-09-15 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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