Coated cutting tool
US-2024287680-A1 · Aug 29, 2024 · US
CVD coated polycrystalline c-BN cutting tools
US9028953B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9028953-B2 |
| Application number | US-201313739876-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 11, 2013 |
| Priority date | Jan 11, 2013 |
| Publication date | May 12, 2015 |
| Grant date | May 12, 2015 |
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Abstract
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CVD coated cutting tools are provided. A coated cutting tool described herein, in some embodiments, comprises a PcBN substrate and a polished coating adhered to the substrate including one or more layers of Al 2 O 3 deposited by chemical vapor deposition, wherein the coating has a surface roughness (R a ) less than about 600 nm in an area of the cutting tool for contacting a workpiece.
First claim
Opening claim text (preview).
That which is claimed is: 1. A coated cutting tool comprising: a polycrystalline cubic boron nitride (PcBN) substrate comprising greater than 85 weight percent PcBN; and a polished coating adhered to the substrate comprising first and second layers of Al 2 O 3 deposited by chemical vapor deposition, wherein the first Al 2 O 3 layer of the coating is deposited directly on the PcBN substrate and the second Al 2 O 3 layer is deposited on TiN, TiC or TiCN layer and wherein the co…
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Classifications
- C23C28/04Primary
Chemistry & Metallurgy · mapped topic
Cross-Sectional Technologies · mapped topic
- B23B27/148Primary
Operations & Transport · mapped topic
Cross-Sectional Technologies · mapped topic
Operations & Transport · mapped topic
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- What does patent US9028953B2 cover?
- CVD coated cutting tools are provided. A coated cutting tool described herein, in some embodiments, comprises a PcBN substrate and a polished coating adhered to the substrate including one or more layers of Al 2 O 3 deposited by chemical vapor deposition, wherein the coating has a surface roughness (R a ) less than about 600 nm in an area of the cutting tool for contacting a workpiece.
- Who is the assignee on this patent?
- Kennametal Inc
- What technology area does this patent fall under?
- Primary CPC classification C23C28/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 12 2015 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).