The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7435377 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 14, 2008

Filed:

Aug. 09, 2005
Applicants:

Hyun Sam Cho, Salt Lake City, UT (US);

Kyung Ryul Han, ChunAhn-si, KR;

Tim Valentine, Surrey, GB;

Inventors:

Hyun Sam Cho, Salt Lake City, UT (US);

Kyung Ryul Han, ChunAhn-si, KR;

Tim Valentine, Surrey, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 16/22 (2006.01);
U.S. Cl.
CPC ...
Abstract

A weldable ultrahard insert can include an ultrahard working layer and a weldable metal layer metallically bonded with the working layer. The ultrahard working layer can be any ultrahard material such as PCD, PCBN, metal carbide, ceramic, diamond, or the like. The weldable ultrahard inserts can be formed by charging a reaction vessel with ultrahard materials, including precursors thereof, and placing a weldable metal layer in the reaction vessel with an optional intermediate layer. The assembly can be subjected to a pressure and a temperature sufficient to metallically bond the weldable metal layer to the ultrahard material. The weldable layer is formed as part of the insert in situ which facilitates subsequent welding of the insert to a tool substrate without risking damage to the ultrahard material.


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