Title:
表面被覆切削工具およびその製造方法
Document Type and Number:
Japanese Patent JP6667713
Kind Code:
B2
Abstract:
A surface-coated cutting tool includes a substrate and a coating formed on a surface of the substrate, the coating including one or two or more layers, at least one of the layers being an Al-rich layer including hard particles, the hard particle having a sodium chloride type crystal structure, and including a first unit phase in a form of a plurality of lumps and a second unit phase interposed between the lumps of the first unit phase, the first unit phase being composed of a nitride or carbonitride of AlxTi1-x, the first unit phase having an atomic ratio x of Al of 0.7 or more and 0.96 or less, the second unit phase being composed of a nitride or carbonitride of AlyTi1-y, the second unit phase having an atomic ratio y of Al exceeding 0.5 and less than 0.7, the Al-rich layer exhibiting a maximum peak in the (220) plane when the Al-rich layer is analyzed through X-ray diffraction in a direction normal to a surface of the coating.
Inventors:
Passat Anonsack
Kido Yasuki
Shinya Imamura
Kuramochi Koji
Kido Yasuki
Shinya Imamura
Kuramochi Koji
Application Number:
JP2019502437A
Publication Date:
March 18, 2020
Filing Date:
July 11, 2017
Export Citation:
Assignee:
Sumitomo Electric Hardmetal Corp.
Sumitomo Electric Industries, Ltd.
Sumitomo Electric Industries, Ltd.
International Classes:
B23B27/14; B23B51/00; B23C5/16; B23D77/00; B23F21/00; B23G5/06; C23C16/30; C23C16/56
Domestic Patent References:
| JP2015509858A |
Foreign References:
| US20160333473 | ||||
| WO2017016826A1 |
Other References:
J.Todt et al.,Al-rich cubic Al0.8Ti0.2N coating with self-organized nano-lamellar microstructure:Thermal and mecha,Surface and Coatings Technology,ELSEVIER,2016年,vol.291,pp89-93
Attorney, Agent or Firm:
Fukami patent office