Sumitomo Electric Industries, Limited

Toshihiro Tabata

Haruyo Fukui

Nozomi Tsukihara

Anongsack Paseuth

Koji Kuramochi

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 TiMoN, a represents 0.01 or more and 0.20 or less, the second unit layer is composed of AlVN, and b represents 0.40 or more and 0.80 or less.

Cutting tool

A cutting tool, including: a base; and a coating disposed on the base, wherein the coating includes a first layer composed of hexagonal W(CN), a represents 0.3 or more and 0.8 or less, and x represents 0.8 or more and 1.2 or less.

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 has a hexagonal crystal structure, the first unit layer is composed of W(CN), a represents 0.3 or more and 0.8 or less, x represents 0.8 or more and 1.2 or less, the second unit layer is composed of AlTiN, and c represents 0.30 or more and 0.75 or less.

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 TiMoN, a represents 0.01 or more and 0.20 or less, the second unit layer is composed of AlCrN, and b represents 0.40 or more and 0.80 or less.

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 has a hexagonal crystal structure, the first unit layer is composed of W(CN), a represents 0.3 or more and 0.8 or less, x represents 0.8 or more and 1.2 or less, the second unit layer is composed of AlCrN, and c represents 0.40 or more and 0.80 or less.

A cutting tool is a cutting tool comprising a substrate and a coating film disposed on the substrate, in which the coating film includes a first layer, the first layer is composed of an alternate layer where a first unit layer and a second unit layer are alternately stacked, the first unit layer is composed of TiAlCeN, a is 0.350 or more and 0.650 or less, b is 0.001 or more and 0.100 or less, the second unit layer is composed of AlCrN, c is 0.40 or more and 0.75 or less, and a and c satisfy a relationship of c>a.

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 has a hexagonal crystal structure, the first unit layer is composed of W(CNa), a represents 0.3 or more and 0.8 or less, x represents 0.8 or more and 1.2 or less, the second unit layer is composed of TiSiN, and c represents 0.80 or more and 0.99 or less.

A cutting tool is a cutting tool comprising a substrate and a coating film disposed on the substrate, in which the coating film includes a first layer, the first layer is composed of an alternate layer where a first unit layer and a second unit layer are alternately stacked, the first unit layer is composed of TiAlCeN, a is 0.350 or more and 0.650 or less, b is 0.001 or more and 0.100 or less, the second unit layer is composed of AlVN, c is 0.40 or more and 0.75 or less, and a and c satisfy a relationship of c>a.

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 has a hexagonal crystal structure, the first unit layer is composed of W(CN), a represents 0.3 or more and 0.8 or less, x represents 0.8 or more and 1.2 or less, the second unit layer is composed of AlVN, and c represents 0.40 or more and 0.80 or less.

A cutting tool is a cutting tool comprising a substrate and a coating film disposed on the substrate, in which the coating film includes a first layer, the first layer is composed of an alternate layer where a first unit layer and a second unit layer are alternately stacked, the first unit layer is composed of TiAlCeN, a is between greater than or equal to 0.350 and equal to or less than 0.650, b is between greater than or equal to 0.001 and equal to or less than 0.100, the second unit layer is composed of TiSiN, and c is between greater than or equal to 0.20 and equal to or less than 0.99.

A cutting tool is a cutting tool comprising a substrate and a coating film disposed on the substrate, in which the coating film includes a first layer, the first layer is composed of an alternate layer where a first unit layer and a second unit layer are alternately stacked, the first unit layer is composed of AlCrCeN, a is 0.400 or more and 0.800 of less, b is 0.100 or less, the second unit layer is composed of TiSiN, and c is 0.200 or more and 0.990 or less.

A cutting tool is a cutting tool comprising a substrate and a coating film disposed on the substrate, in which the coating film includes a first layer, the first layer is composed of an alternate layer where a first unit layer and a second unit layer are alternately stacked, the first unit layer is composed of AlCrCeN, a is more than 0.500 and 0.800 or less, b is 0.001 or more and 0.100 or less, the second unit layer is composed of AlVN, c is 0.30 or more and 0.75 or less, and a and c satisfy a relationship of a>c.

Growing community of inventors

Osaka, Japan

Toshihiro Tabata