US 12,115,586 B2
Coated tool and cutting tool
Tadashi Katsuma, Satsumasendai (JP)
Assigned to KYOCERA Corporation, Kyoto (JP)
Appl. No. 17/273,733
Filed by KYOCERA CORPORATION, Kyoto (JP)
PCT Filed Sep. 3, 2019, PCT No. PCT/JP2019/034600
§ 371(c)(1), (2) Date Mar. 5, 2021,
PCT Pub. No. WO2020/050264, PCT Pub. Date Mar. 12, 2020.
Claims priority of application No. 2018-166092 (JP), filed on Sep. 5, 2018.
Prior Publication US 2021/0187623 A1, Jun. 24, 2021
Int. Cl. B23B 27/14 (2006.01); C23C 16/36 (2006.01); C23C 16/40 (2006.01)
CPC B23B 27/148 (2013.01) [C23C 16/36 (2013.01); C23C 16/403 (2013.01); B23B 2228/10 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A coated tool, comprising:
a base member comprising a first surface; and
a coating layer located at least on the first surface of the base member,
wherein
the coating layer comprises:
a first layer which is located on the first surface and which comprises cubic titanium carbonitride, and
a second layer which is located on and in contact with the first layer;
the first layer further comprises an orientation coefficient Tc (220) of the titanium carbonitride by X-ray diffraction analysis of 3.0 or more;
the coating layer further comprises a plurality of voids located side by side in the first layer, in a direction along a boundary between the first layer and the second layer in a cross section orthogonal to the first surface; and
an average value of widths of respective voids of the plurality of voids in a direction along the boundary is less than an average value of distances between the respective voids adjacent to each other.