Braze alloy

US20050089440A1Inactive Publication Date: 2005-04-28KEMBAIYAN KUMAR T
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
KEMBAIYAN KUMAR T
Publication Date
2005-04-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

A braze alloy is described which includes indium and / or thallium as alloying elements. For example, between about 0.5% and about 10% by weight of indium (In) and / or thallium (Tl) can be added to a braze alloy to reduce the braze temperature without substantially effecting braze strength. Braze alloys that are alloyed to including indium (In) and / or thallium (Tl) can be use in brazing cutting elements to drilling tools. These alloying elements may also be added to braze alloys used for other applications to reduce braze temperature.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit under 35 U.S.C. §120 as a continuation of U.S. application Ser. No. 10 / 692,926, filed Oct. 24, 2003, titled “Improved Braze Alloy for Drilling Applications,” and incorporated by reference.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

[0002] Not applicable. BACKGROUND OF INVENTION

[0003] 1. Field of the Invention

[0004] The present invention relates to a braze alloy. More particularly, the present invention relates to a braze alloy having alloying elements added to reduce braze temperature.

[0005] 2. Background Art

[0006] Earth boring tools, and in particular drill bits, are commonly used in the oil and gas industry for drilling well bores. FIG. 1 shows one example of a conventional drilling system for drilling through earth formation. The drilling system includes a drilling rig 1 used to turn a drill string 2 which extends downward into a well bore 4. Connected to the end of the dril...

Claims

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