Back to results
US 12,214,426 B1Granted
Cutting tool
AssigneeSumitomo Electric Industries, Ltd.
InventorsHaruyo Fukui, Nozomi Tsukihara, Toshihiro Tabata
Life of this patent
Estimating the term…
Abstract
A cutting tool, including: a base; and a coating disposed on the base, wherein the coating includes a first layer, the first layer is composed of an alternate layer in which a first unit layer and a second unit layer are alternately stacked, the first unit layer is composed of Ti1-aMoaN, a represents 0.01 or more and 0.20 or less, the second unit layer is composed of AlbCr1-bN, and b represents 0.40 or more and 0.80 or less.
Claims8
A cutting tool, comprising:
- a base;
- and
- a coating disposed on the base, wherein
- the coating includes a first layer,
- the first layer is composed of an alternate layer in which a first unit layer and a second unit layer are alternately stacked,
- the first unit layer is composed of Ti1-aMoaN,
- a represents 0.01 or more and 0.20 or less,
- the second unit layer is composed of AlbCr1-bN, and
- b represents 0.40 or more and 0.80 or less.
6 more elements
A cutting tool, comprising:
- a base;
- and
- a coating disposed on the base, wherein
- the coating includes a second layer,
- the second layer is composed of an alternate layer in which a first unit layer and a third unit layer are alternately stacked,
- the first unit layer is composed of Ti1-aMoaN,
- a represents 0.01 or more and 0.20 or less,
- the third unit layer is composed of AlcCr1-c-dXdN,
- X represents one or two selected from the group consisting of boron, silicon, scandium, yttrium, and cerium,
- c represents 0.40 or more and 0.80 or less, and
- d represents 0.001 or more and 0.05 or less.
8 more elements
Dependencies are inferred from the claim text.