Title:
MANUFACTURING METHOD OF CUTTING TOOL
Document Type and Number:
Japanese Patent JP2021122935
Kind Code:
A
Abstract:
To provide a manufacturing method of a cutting tool capable of stably imparting high compressive residual stress to a hard coating film and a tool base body, and capable of improving defect resistance of a cutting edge thereby.SOLUTION: A manufacturing method of a cutting tool 10 having a tool base body 1 made of a sintered alloy, a hard coating film 2 having at least a layer arranged on an outer surface of the tool base body 1 and constituted of either of carbide, nitride and carbonitride or a complex compound of these and a cutting edge 3 formed in a ridge line part of the tool base body 1 and including a part positioned in the ridge line part among the hard coating film 2, and includes a laser peening process of imparting compressive residual stress to a surface layer of the hard coating film 2 and the tool base body 1 by directly irradiating a pulse laser L less than 100 ps in a pulse width on the hard coating film 2.SELECTED DRAWING: Figure 1
Inventors:
KUBO TAKUYA
TAKABE RYOTA
TAKABE RYOTA
Application Number:
JP2021015304A
Publication Date:
August 30, 2021
Filing Date:
February 02, 2021
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP
International Classes:
B23B27/14; B23K26/00; B23K26/356; B23P15/28
Domestic Patent References:
| JP2005272989A | 2005-10-06 | |||
| JP2019063904A | 2019-04-25 | |||
| JP2013107143A | 2013-06-06 | |||
| JP2014188618A | 2014-10-06 | |||
| JP2007216327A | 2007-08-30 |
Foreign References:
| WO2019021539A1 | 2019-01-31 | |||
| WO2018215996A1 | 2018-11-29 | |||
| WO2018179666A1 | 2018-10-04 |
Attorney, Agent or Firm:
Yasushi Matsunuma
Mitsuo Teramoto
Fumihiro Hosokawa
Kazunori Onami
Mitsuo Teramoto
Fumihiro Hosokawa
Kazunori Onami