End mill with conditioned cutting edge and method of making same
US-2025153253-A1 · May 15, 2025 · US
Cutting tool
US9707629B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9707629-B2 |
| Application number | US-201314402144-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 31, 2013 |
| Priority date | Jun 21, 2012 |
| Publication date | Jul 18, 2017 |
| Grant date | Jul 18, 2017 |
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- Title
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Abstract
Official abstract text for this publication.
A cutting tool includes a portion made of a high hardness material. The portion includes a rake face, a flank face, and a cutting edge. The rake face is divided into a region A along the cutting edge and a region B excluding the region A of the rake face, a surface roughness of the region A is smaller than a surface roughness of the region B, and the region B is deepened with respect to a position of the region A.
First claim
Opening claim text (preview).
The invention claimed is: 1. A cutting tool comprising a portion made of a high hardness material, wherein the portion includes a rake face, a flank face, and a cutting edge, formed of a ridge at a position at which the rake face and the flank face meet, wherein the rake face is divided into a first region along the cutting edge and a second region excluding the first region of the rake face, a surface roughness of the first region is smaller than a surface roughness of the second region, and the second region is deepened with respect to a position of the first region, and wherein a depth of the second region from the first region is 1 μm or more and 100 μm or less. 2. The cutting tool according to claim 1 , wherein the first region of the rake face is a surface smoothed by machine polishing or grinding and the second region is an unsmoothed surface subjected to laser machining. 3. The cutting tool according to claim 1 , wherein the high hardness material is any one of monocrystalline diamond, sintered diamond, and polycrystalline diamond. 4. The cutting tool according to claim 1 , wherein the first region of the rake face is composed of a single surface. 5. A method for manufacturing the cutting tool according to claim 1 , comprising a laser machining step of forming the rake face on the high hardness material using a laser beam, wherein in the laser machining step, the second region of the rake face is deepened so as to be deeper than the first region and then the first region of the rake face is polished or ground to form a cutting edge between the rake face and the flank face. 6. The cutting tool according to claim 1 , wherein the second region is disposed inside of the first region.
Assignees
Inventors
Classifications
taking account of the properties of the material involved · CPC title
with one or more grooves · CPC title
Operations & Transport · mapped topic
cubic [CBN] · CPC title
Operations & Transport · mapped topic
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- What does patent US9707629B2 cover?
- A cutting tool includes a portion made of a high hardness material. The portion includes a rake face, a flank face, and a cutting edge. The rake face is divided into a region A along the cutting edge and a region B excluding the region A of the rake face, a surface roughness of the region A is smaller than a surface roughness of the region B, and the region B is deepened with respect to a posit…
- Who is the assignee on this patent?
- Sumitomo Electric Hardmetal Corp, Sumitomo Electric Industries
- What technology area does this patent fall under?
- Primary CPC classification B23C5/1018. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jul 18 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).