Rotary tool
US-2018318939-A1 · Nov 8, 2018 · US
Cutting tool and manufacturing method thereof
US10632542B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10632542-B2 |
| Application number | US-201715764125-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 25, 2017 |
| Priority date | Dec 20, 2016 |
| Publication date | Apr 28, 2020 |
| Grant date | Apr 28, 2020 |
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- Title
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Abstract
Official abstract text for this publication.
A cutting tool according to an aspect of the present disclosure includes a cutting edge portion which contains at least one of cubic boron nitride and polycrystalline diamond. The cutting edge portion includes a flank face, a negative land contiguous to the flank face, and a cutting edge formed by a ridgeline between the flank face and the negative land. At least one of the negative land and the flank face is provided with a plurality of recesses and a projection. The projection is formed by arranging the edges of adjacent recesses in contact with each other.
First claim
Opening claim text (preview).
The invention claimed is: 1. A cutting tool comprising a cutting edge portion which contains at least one of cubic boron nitride and polycrystalline diamond, the cutting edge portion including a flank face, a negative land contiguous to the flank face, and a cutting edge formed by a ridgeline between the flank face and the negative land, at least one of the negative land and the flank face being provided with a plurality of recesses and a projection formed by arranging the edges of adjacent recesses in contact with each other. 2. The cutting tool according to claim 1 , wherein the plurality of recesses and the projection are provided only on the negative land. 3. The cutting tool according to claim 2 , wherein a recess of the plurality of recesses which is provided closest to the cutting edge is separated by a distance from the cutting edge. 4. The cutting tool according to claim 1 , wherein the plurality of recesses and the projection are provided only on the flank face. 5. The cutting tool according to claim 1 , wherein the plurality of recesses are provided on both the negative land and the flank face. 6. The cutting tool according to claim 1 , wherein the depth of each recess is 0.05 μm or more and 20 μm or less. 7. The cutting tool according to claim 1 , wherein the arithmetic average roughness of the surface of each recess is 0.05 μm or more and 1.5 μm or less. 8. The cutting tool according to claim 1 , wherein the distance between a recess of the plurality of recesses which is provided closest to the cutting edge and the cutting edge is 5 μm or less. 9. The cutting tool according to claim 1 , wherein the plurality of recesses are arranged along the first direction orthogonal to the cutting edge and along the second direction parallel to the cutting edge, and the adjacent recesses are contiguous to each other.
Assignees
Inventors
Classifications
characterised by physical features other than shape · CPC title
cubic [CBN] · CPC title
with means for lubricating or cooling · CPC title
Cubic boron nitride [CBN] · CPC title
by chip breaking depressions · CPC title
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- What does patent US10632542B2 cover?
- A cutting tool according to an aspect of the present disclosure includes a cutting edge portion which contains at least one of cubic boron nitride and polycrystalline diamond. The cutting edge portion includes a flank face, a negative land contiguous to the flank face, and a cutting edge formed by a ridgeline between the flank face and the negative land. At least one of the negative land and th…
- Who is the assignee on this patent?
- Sumitomo Electric Hardmetal Corp
- What technology area does this patent fall under?
- Primary CPC classification B23B27/20. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 28 2020 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).