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Composite material and coated cutting tool
US8993095B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8993095-B2 |
| Application number | US-67797908-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 12, 2008 |
| Priority date | Sep 14, 2007 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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- Title
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Abstract
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The present invention provides a composite material that is excellent in the bonding ability between a cemented carbide layer and a cermet layer is excellent and deformation after sintering can be suppressed and a coated cutting tool having a base containing the composite material. A composite material 10 ii is obtained by laminating a cemented carbide layer 11 and a cermet layer 12 and has the cemented carbide layer 11 on the surface side. The boundary between both the layers 11 and 12 has a concave portion 23 , and the maximum depth D max of the concave portion 23 is 50 μm or more and 500 μm or lower. When the thickness of the composite material is defined as h 1 and the thickness of the cemented carbide layer 11 is defined as h 2 , h 2 /h 1 is in the range of more than 0.02 and 0.4 or lower. By providing the concave portion 23 to the boundary, both the layers 11 and 12 are sufficiently bound and the bonding ability therebetween is excellent. Due to the fact the cemented carbide layer 11 satisfies the given thickness mentioned above, the composite material 10 is difficult to deform.
First claim
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The invention claimed is: 1. A composite material, comprising: a cemented carbide layer and a cermet layer that are laminated, the cemented carbide layer having an inner surface facing the cermet layer and an outer surface opposite the inner surface, wherein: the cemented carbide layer is disposed on at least one portion of the surface side of the composite material, the outer surface of the cemented carbide layer and a boundary between the cemented carbide layer and the cer…
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Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Chemistry & Metallurgy · mapped topic
Operations & Transport · mapped topic
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- What does patent US8993095B2 cover?
- The present invention provides a composite material that is excellent in the bonding ability between a cemented carbide layer and a cermet layer is excellent and deformation after sintering can be suppressed and a coated cutting tool having a base containing the composite material. A composite material 10 ii is obtained by laminating a cemented carbide layer 11 and a cermet layer 12 and…
- Who is the assignee on this patent?
- Ishida Tomoyuki, Moriguchi Hideki, Ikegaya Akihiko, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C23C30/005. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 31 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).