Coated cutting tool
US-2024287680-A1 · Aug 29, 2024 · US
Surface-coated cutting tool
US10384269B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10384269-B2 |
| Application number | US-201515521919-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 12, 2015 |
| Priority date | Nov 13, 2014 |
| Publication date | Aug 20, 2019 |
| Grant date | Aug 20, 2019 |
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Abstract
Official abstract text for this publication.
In a surface-coated cutting tool in which a hard coating layer having a total layer thickness of 0.5 to 10 μm is deposited on a surface of a tool body made of WC-based cemented carbide or TiCN-based cermet, the hard coating layer has an alternately laminated structure of A layers and B layers, in a case where the A layer is: (Al a Ti 1-a )N (here, a is in atomic ratio), the A layer satisfies 0.50≤a<0.75, in a case where the B layer is: (Al b Ti 1-b )N (here, b is in atomic ratio), the B layer satisfies 0.75≤b≤0.95, and when a layer thickness per layer of the A layers is represented by x (nm) and a layer thickness per layer of the B layers is represented by y (nm), 5y≥x≥3y and 250 (nm)≥x+y≥100 (nm) are satisfied.
First claim
Opening claim text (preview).
The invention claimed is: 1. A surface-coated cutting tool in which a hard coating layer having a total layer thickness of 0.5 to 10 μm is deposited on a surface of a tool body made of tungsten carbide cemented carbide or titanium carbonitride cermet, wherein (a) the hard coating layer has an alternately laminated structure of A layers and B layers, (b) in a case where the A layer is expressed by a composition formula: (Al a Ti 1-a )N (here, a is in atomic ratio), the A layer satisfies 0.50≤a<0.75, (c) in a case where the B layer is expressed by a composition formula: (Al b Ti 1-b )N (here, b is in atomic ratio), the B layer satisfies 0.75≤b≤0.95, and (d) when a layer thickness per layer of the A layers is represented by x (nm) and a layer thickness per layer of the B layers is represented by y (nm), 5y≥x≥3y and 250 (nm)≥x+y≥100 (nm) are satisfied.
Assignees
Inventors
Classifications
Cermets, e.g. mixtures of metal and one or more of carbides, nitrides, oxides or borides · CPC title
characterized by a measurable physical property of the alternating layer or system, e.g. thickness, density, hardness · CPC title
Electric arc evaporation · CPC title
Cermet · CPC title
characterized by the composition of the alternating layers · CPC title
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- What does patent US10384269B2 cover?
- In a surface-coated cutting tool in which a hard coating layer having a total layer thickness of 0.5 to 10 μm is deposited on a surface of a tool body made of WC-based cemented carbide or TiCN-based cermet, the hard coating layer has an alternately laminated structure of A layers and B layers, in a case where the A layer is: (Al a Ti 1-a )N (here, a is in atomic ratio), the A layer satisfies 0.…
- Who is the assignee on this patent?
- Mitsubishi Materials Corp
- What technology area does this patent fall under?
- Primary CPC classification B23B27/148. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 20 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).