Sumitomo Electric Industries, Limited

Sumitomo Electric Hardmetal Corp.

Nissin Electric Co., Ltd.

Haruyo Fukui

Nozomi Tsukihara

Makoto Setoyama

Toshihiro Tabata

Shinya Imamura

Hideki Moriguchi

Keizo Tanaka

Anongsack Paseuth

Naoya Omori

Hisanori Ohara

Yoshiharu Utsumi

Hiroki Takeshita

Satoru Kukino

Keiichi Tsuda

Kazuhiro Hirose

Kouhei Yoshimura

Michiko Ota

Koji Yamaguchi

Kiyoshi Ogata

Yoshihiro Saito

Shuhei Misumi

Naoto Okazaki

Daiji Tabayashi

Koji Kuramochi

Akira Kobayashi

Kazuya Tokuda

Junji Iihara

Miki Irie

Momoko Iida

Akihiko Shibata

Satoshi Ohtani

Hajime Takamatsu

Akihiko Ikegaya

Tetsuo Nakai

Tomohiro Fukaya

Junya Okida

Yoshio Okada

Kazuo Yamagata

Junichi Shiraishi

Sachiko Koike

Shigeaki Uemura

Tatsuro Fukuda

A cutting tool, comprising a substrate and a coating disposed on the substrate, wherein the coating comprises a first layer, the first layer is composed of AlTiCrSiAgN, and the a, the b, the c, and the d satisfy

Cutting tool

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.

A cutting tool, comprising a substrate and a coating disposed on the substrate,

A cutting tool includes a substrate and a coating film that is disposed on the substrate, wherein the coating film includes a first layer composed of metal tungsten and hexagonal ditungsten carbide, and the first layer has an elastic deformation rate of 43.0 or more and 58.0 or less.

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 comprises a rake face and a flank face, the cutting tool being composed of a substrate made of a cubic boron nitride sintered material and a coating provided on the substrate, the coating including a MAlN layer, when a cross section of the MAlN layer is subjected to an electron backscattering diffraction image analysis to determine a crystal orientation of each of the crystal grains of the MAlN and a color map is created based thereon, then on the color map, the flank face having the MAlN layer occupied in area by 45% to 75% by crystal grains of the MAlN having a (111) plane with a normal thereto extending in a direction within 25 degrees with respect to a direction in which a normal to the flank face extends, the MAlN layer having a residual stress of −2 GPa to −0.1 GPa.

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.

Growing community of inventors

Itami, Japan

Haruyo Fukui