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.:
Date of Patent:
Jan. 03, 2012
Filed:
Sep. 08, 2008
Srikanth Chandrudu Kottilingam, Simpsonville, SC (US);
Charles Gitahi Mukira, Greenville, SC (US);
Warren Martin Miglietti, Greenville, SC (US);
Arthur S. Peck, Greenville, SC (US);
Christopher Penny, Greenville, SC (US);
Yan Cui, Greenville, SC (US);
Steven Rauch, Yorktown, VA (US);
Srikanth Chandrudu Kottilingam, Simpsonville, SC (US);
Charles Gitahi Mukira, Greenville, SC (US);
Warren Martin Miglietti, Greenville, SC (US);
Arthur S. Peck, Greenville, SC (US);
Christopher Penny, Greenville, SC (US);
Yan Cui, Greenville, SC (US);
Steven Rauch, Yorktown, VA (US);
General Electric Company, Schenectady, NY (US);
Abstract
A process for filling openings, including blind holes, through-holes, and cavities, in high temperature components. The process entails forming a powder mixture by mixing particles of at least a base alloy and a second alloy that contains a sufficient amount of a melting point depressant to have a lower melting temperature than the base alloy. The powder mixture is combined with a binder and compacted to form a compacted preform, which is then heated to remove the binder and form a rigid sintered preform. The sintered preform is produced, or optionally is further shaped, to have a cross-sectional shape and dimensions to achieve a clearance of up to 200 micrometers with the opening, after which the preform is placed in the opening and diffusion bonded within the opening to form a brazement comprising the particles of the base alloy dispersed in a matrix formed by the second alloy.