Cutting tool for recessing and grooving
US-9475123-B2 · Oct 25, 2016 · US
Sintered cubic boron nitride compact tool
US9649692B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9649692-B2 |
| Application number | US-201314382625-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 9, 2013 |
| Priority date | Apr 23, 2012 |
| Publication date | May 16, 2017 |
| Grant date | May 16, 2017 |
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- Title
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Abstract
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A tool includes, at least on its edge, a sintered cBN compact which includes cBN particles and a bonding phase, a plurality of flutes is formed on a rake face, each of the flutes having a starting end on the edge ridgeline and causing the edge ridgeline to be wavy, and the terminal end of the flute is disposed inwardly of the edge ridgeline. It is preferable that the flute width of the flute decreases with distance from the edge ridgeline, the flute depth of the flute decreases with distance from the edge ridgeline, and the rake face has a positive rake angle.
First claim
Opening claim text (preview).
The invention claimed is: 1. A sintered cubic boron nitride compact tool having a polygonal shape with a corner such that the corner defines an arc, the compact tool comprising: a sintered cBN compact at least on an edge of the corner of the polygonal shape, the sintered cBN compact including a cubic boron nitride particle and a bonding phase, wherein a plurality of flutes is formed on a rake face of the arc of the corner such that the plurality of flutes are formed over the entire arc of the corner, each of the flutes has a starting end on an edge ridgeline such that the edge ridgeline is wavy, and a terminal end of each of the flutes is located inwardly of the edge ridgeline. 2. The sintered cubic boron nitride compact tool according to claim 1 , wherein each of the flutes has a flute width of 10 to 100 μm and a flute depth of 10 to 50 μm, the flute width of the flutes decreases with distance from the edge ridgeline, the flute depth of the flutes decreases with distance from the edge ridgeline, and the rake face has a positive rake angle. 3. The sintered cubic boron nitride compact tool according to claim 1 , wherein an average particle diameter of the cBN particle included in the sintered cBN compact is 2 μm or less, and a thermal conductivity of the sintered cBN compact is 70 W/m·K or lower. 4. The sintered cubic boron nitride compact tool according to claim 2 , wherein an average particle diameter of the cBN particle included in the sintered cBN compact is 2 μm or less, and a thermal conductivity of the sintered cBN compact is 70 W/m·K or lower.
Assignees
Inventors
Classifications
Plate-like cutting inserts with special form (special form related to securing of the insert B23C5/22) · CPC title
cubic [CBN] · CPC title
with one or more grooves · CPC title
Composition of the cutting inserts · CPC title
comprising concave surface in cutting face of tool · CPC title
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Frequently asked questions
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- What does patent US9649692B2 cover?
- A tool includes, at least on its edge, a sintered cBN compact which includes cBN particles and a bonding phase, a plurality of flutes is formed on a rake face, each of the flutes having a starting end on the edge ridgeline and causing the edge ridgeline to be wavy, and the terminal end of the flute is disposed inwardly of the edge ridgeline. It is preferable that the flute width of the flute de…
- Who is the assignee on this patent?
- Sumitomo Electric Hardmetal Corp
- What technology area does this patent fall under?
- Primary CPC classification B23B27/145. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 16 2017 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).