Cutting inserts with cross-holes and green bodies and methods for making such cutting inserts and green bodies
US-2016318812-A1 · Nov 3, 2016 · US
Method for producing a sintered composite body
US9399600B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9399600-B2 |
| Application number | US-201113825646-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 23, 2011 |
| Priority date | Sep 24, 2010 |
| Publication date | Jul 26, 2016 |
| Grant date | Jul 26, 2016 |
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- Title
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Abstract
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The present invention relates to a method of producing a sintered composite body comprising cubic boron nitride particles dispersed in a cemented carbide matrix by sintering a mixture comprising cubic boron nitride particles and a cemented carbide powder at a sintering temperature below 1350° C. without applying a pressure.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of producing a sintered composite body of cubic boron nitride particles dispersed in a cemented carbide matrix comprising the step of sintering a mixture of cubic boron nitride particles and a cemented carbide powder at a sintering temperature below 1350° C. without applying a pressure. 2. A method according to claim 1 , wherein the pressure is less than 200 mbar. 3. A method according to claim 1 , wherein the temperature is 1340° C. or below. 4. A method according to claim 1 , wherein the sintering temperature is above 1200° C. 5. A method according to claim 1 , wherein a sintering time is between 20 and 120 minutes. 6. A method according to claim 1 , wherein the sintering is performed in a vacuum sintering furnace. 7. A method according to claim 1 , wherein the mixture comprises an amount of cubic boron nitride particles of 4 weight-% or less. 8. A method according claim 1 , wherein the cemented carbide powder comprises an amount of binder phase of between 6 and 16 weight-%. 9. A method according to claim 1 , wherein the cemented carbide powder comprises tungsten carbide and cobalt.
Assignees
Inventors
Classifications
Boron compounds · CPC title
- C04B35/5626Primary
based on tungsten carbides · CPC title
based on carbides or carbonitrides · CPC title
- B22F3/10Primary
Sintering only · CPC title
Alloys containing diamond {or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes} · CPC title
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- What does patent US9399600B2 cover?
- The present invention relates to a method of producing a sintered composite body comprising cubic boron nitride particles dispersed in a cemented carbide matrix by sintering a mixture comprising cubic boron nitride particles and a cemented carbide powder at a sintering temperature below 1350° C. without applying a pressure.
- Who is the assignee on this patent?
- Smith Jane, Chan Peter, Carpenter Michael, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C04B35/5626. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 26 2016 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).