Polycrystalline diamond compact
US-12044075-B2 · Jul 23, 2024 · US
Chemically strengthened bond between thermally stable polycrystalline hard materials and braze material
US2018355673A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018355673-A1 |
| Application number | US-201816053637-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 2, 2018 |
| Priority date | Dec 22, 2014 |
| Publication date | Dec 13, 2018 |
| Grant date | — |
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- Title
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Abstract
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Chemical methods, optionally in combination with physical methods, may be used to increase the strength of the bond formed by a braze material between a polycrystalline material and a hard composite. Such polycrystalline materials brazed to hard composites may be found in various wellbore tools include drill bit cutters. An exemplary method may include forming a bonding layer on a bonding surface of a polycrystalline material body that comprises a hard material, the bonding surface opposing a contact surface of the polycrystalline material body, and the bonding layer substantially formed by a [111] crystal structure of the hard material, a [100] crystal structure of the hard material, or a combination thereof; and brazing the bonding layer to a hard composite using a braze material.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A drill bit cutter comprising: a polycrystalline material body having a bonding surface opposing a contact surface; a bonding layer disposed on the bonding surface, the bonding layer substantially formed by a [111] crystal structure, a [100] crystal structure, or a combination thereof; and a hard composite bound to the bonding layer opposite the polycrystalline material body with a braze material. 2 . The drill bit cutter of claim 1 , wherein the bonding layer has a thickness of 10 microns to 250 microns at the bonding surface. 3 . The drill bit cutter of claim 1 , wherein the hard material is diamond. 4 . The drill bit cutter of claim 1 , wherein the hard material is cubic boron nitride. 5 . The drill bit cutter of claim 1 , wherein the hard material is silicon carbide.
Assignees
Inventors
Classifications
Drill-bits · CPC title
with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts · CPC title
Boron nitride · CPC title
Cu as the principal constituent · CPC title
taking account of the properties of the materials to be soldered · CPC title
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Frequently asked questions
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- What does patent US2018355673A1 cover?
- Chemical methods, optionally in combination with physical methods, may be used to increase the strength of the bond formed by a braze material between a polycrystalline material and a hard composite. Such polycrystalline materials brazed to hard composites may be found in various wellbore tools include drill bit cutters. An exemplary method may include forming a bonding layer on a bonding surfa…
- Who is the assignee on this patent?
- Halliburton Energy Services Inc
- What technology area does this patent fall under?
- Primary CPC classification E21B10/5735. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Thu Dec 13 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).