Invention Grant
- Patent Title: Coated cutting tool
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Application No.: US16313957Application Date: 2017-06-27
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Publication No.: US10882116B2Publication Date: 2021-01-05
- Inventor: Takaaki Nakamura
- Applicant: TUNGALOY CORPORATION
- Applicant Address: JP Fukushima
- Assignee: TUNGALOY CORPORATION
- Current Assignee: TUNGALOY CORPORATION
- Current Assignee Address: JP Fukushima
- Agency: Studebaker & Brackett PC
- Priority: JP2016-131717 20160701
- International Application: PCT/JP2017/023549 WO 20170627
- International Announcement: WO2018/003789 WO 20180104
- Main IPC: B23B27/14
- IPC: B23B27/14 ; B23C5/20 ; C23C16/36 ; C23C16/40

Abstract:
A coated cutting tool comprising a substrate and a coating layer formed on the substrate, wherein: the coating layer is laminated in order from the substrate side toward a surface side of the coating layer; and the coating layer comprises an upper layer and a lower layer which satisfy the following conditions that: “at least one of {422} planes of TiCN particles located closest to the surface in the lower layer and at least one of {006} planes of α-type Al2O3 particles located closest to the substrate in the upper layer and immediately above the TiCN particles are substantially parallel to each other, and at least one of {111} planes of the TiCN particles and at least one of {110} planes of the α-type Al2O3 particles are substantially parallel to each other”; and “at least one of {111} planes of TiCN particles located closest to the surface in the lower layer and at least one of {006} planes of α-type Al2O3 particles located closest to the substrate in the upper layer and immediately above the TiCN particles are substantially parallel to each other, and at least one of {422} planes of the TiCN particles and at least one of {110} planes of the α-type Al2O3 particles are substantially parallel to each other.”
Public/Granted literature
- US20190314899A1 COATED CUTTING TOOL Public/Granted day:2019-10-17
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