The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 2021
Filed:
Jan. 17, 2018
Mitsubishi Materials Corporation, Tokyo, JP;
Takuya Ishigaki, Naka, JP;
Sho Tatsuoka, Naka, JP;
Kenichi Sato, Naka, JP;
Kousuke Yanagisawa, Naka, JP;
Shin Nishida, Naka, JP;
MITSUBISHI MATERIALS CORPORATION, Tokyo, JP;
Abstract
A surface-coated cutting tool including at least a TiAlCN layer, in which the layer is expressed by a composition formula: (TiAl)(CN), an average content ratio X of Al and an average content ratio Y of C (here, X and Y are atomic ratios) satisfy 0.60≤X≤0.95 and 0≤Y≤0.005, respectively, an average content ratio Z of Cl in the total amount of atoms configuring the TiAlCN phase (here, Z is an atomic ratio) satisfies 0.0001≤Z≤0.004, plane spacings d(111) and d(200) are respectively calculated from X-ray diffraction spectra of (111) plane and (200) plane of crystal grains having a NaCl type face-centered cubic structure in the TiAlCN layer measured by using an X-ray diffraction device, and an absolute value ΔA=|A(111)−A(200)| defined as A(111)=3d(111) and A(200)=2d(200) satisfies 0.007 Å≤ΔA≤0.05.