Substrate Processing Method, Apparatus, and System
US-2024363405-A1 · Oct 31, 2024 · US
Diamond coated tool
US2016175941A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016175941-A1 |
| Application number | US-201615053779-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 25, 2016 |
| Priority date | Aug 11, 2009 |
| Publication date | Jun 23, 2016 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The present invention provides a diamond coated tool which is resistant to exfoliation at an interface between a base material and a diamond layer. The diamond coated tool of the present invention is a diamond coated tool including a base material and a diamond layer coating a surface of the base material, and characterized in that the surface of the base material has an arithmetic average roughness Ra of not less than 0.1 μm and not more than 10 μm and an average length of roughness profile elements RSm of not less than 1 μm and not more than 100 μm, and that the diamond layer has a plurality of cavities extending from a portion bordering on the base material in a crystal growth direction.
First claim
Opening claim text (preview).
1 . A diamond coated tool comprising: a base material; and a diamond layer coating a surface of said base material, the surface of said base material having an arithmetic average roughness Ra of not less than 0.1 μm and not more than 10 μm and an average length of roughness profile elements RSm of not less than 1 μm and not more than 100 μm, and said diamond layer having a plurality of cavities at a portion bordering on said base material. 2 . The diamond coated tool according to claim 1 , wherein said arithmetic average roughens Ra is not less than 0.4 μm and not more than 4 μm, and said average length of roughness profile elements RSm is not less than 2 μm and not more than 20 μm. 3 . The diamond coated tool according to claim 1 , wherein in a given section taken through said diamond coated tool at a plane including said base material and said diamond layer, the number of said cavities relative to a length of said base material is not less than 1×10 3 /cm and not more than 1×10 6 /cm. 4 . (canceled) 5 . The diamond coated tool according to claim 1 , wherein said diamond layer is made of polycrystalline diamond. 6 . The diamond coated tool according to claim 1 , wherein said diamond layer is formed by chemical vapor deposition process.
Assignees
Inventors
Classifications
- C23C16/0227Primary
by cleaning or etching · CPC title
Particulate matter · CPC title
using hot filaments · CPC title
Diamond only · CPC title
polycrystalline [PCD] · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016175941A1 cover?
- The present invention provides a diamond coated tool which is resistant to exfoliation at an interface between a base material and a diamond layer. The diamond coated tool of the present invention is a diamond coated tool including a base material and a diamond layer coating a surface of the base material, and characterized in that the surface of the base material has an arithmetic average roug…
- Who is the assignee on this patent?
- Sumitomo Electric Industries, Sumitomo Elec Hardmetal Corp
- What technology area does this patent fall under?
- Primary CPC classification C23C16/0227. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jun 23 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).