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US-2015375366-A1 · Dec 31, 2015 · US
Methods of forming at least a portion of earth-boring tools, and articles formed by such methods
US8978734B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8978734-B2 |
| Application number | US-201113111739-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 19, 2011 |
| Priority date | May 20, 2010 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
Methods of forming at least a portion of an earth-boring tool include providing particulate matter including a hard material in a mold cavity, melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material, casting the molten composition to form the at least a portion of an earth-boring tool within the mold cavity, and providing an inoculant within the mold cavity. Methods of forming a roller cone of an earth-boring rotary drill bit include forming a molten composition, casting the molten composition within a mold cavity, solidifying the molten composition to form the roller cone, and controlling grain growth using an inoculant as the molten composition solidifies. Articles including components of earth-boring tools are fabricated using such methods.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of forming at least a portion of an earth-boring tool, comprising: providing particulate matter comprising a hard material in a mold cavity; melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material; casting the molten composition to form the at least a portion of an earth-boring tool within the mold cavity; and providing an inoculant within the mold…
Assignees
Inventors
Classifications
Operations & Transport · mapped topic
Chemistry & Metallurgy · mapped topic
- B24D3/06Primary
Operations & Transport · mapped topic
Chemistry & Metallurgy · mapped topic
Operations & Transport · mapped topic
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- What does patent US8978734B2 cover?
- Methods of forming at least a portion of an earth-boring tool include providing particulate matter including a hard material in a mold cavity, melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material, casting the molten composition to form the at least a portion of an earth-boring tool within the mol…
- Who is the assignee on this patent?
- Stevens John H, Baker Hughes Inc
- What technology area does this patent fall under?
- Primary CPC classification B24D3/06. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 17 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).