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:
Aug. 13, 2024
Filed:
Apr. 28, 2023
Sumitomo Electric Hardmetal Corp., Itami, JP;
SUMITOMO ELECTRIC HARDMETAL CORP., Itami, JP;
Abstract
A cutting tool includes a substrate and a coating film, including a first layer in which a first unit layer composed of TiAlBN, where 0.30≤a≤0.50, and 0<b≤0.10, and a second unit layer composed of TiAlN, where 0.70≤c≤1.00, are alternately layered and a second layer in which a third unit layer composed of TiAlBN, where 0.25≤d<0.45, 0<e≤0.10, and a fourth unit layer composed of TiAlBN, where 0.35≤f<0.55, 0<g≤0.10, are alternately layered, in the first layer, a percentage (T2/T1)×100 of the number T2 of atoms of titanium to a total T1 of the numbers of atoms of titanium and aluminum is 60% or more, a ratio I(200)/I(002) is 2 or more, and a half width of a peak originated from the (002) plane is 2 degrees or more.