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:
Aug. 01, 2006
Filed:
Feb. 10, 2004
F. Michael Hosking, Albuquerque, NM (US);
Aaron C. Hall, Albuquerque, NM (US);
Richard C. Givler, Albuquerque, NM (US);
Charles A. Walker, Albuquerque, NM (US);
F. Michael Hosking, Albuquerque, NM (US);
Aaron C. Hall, Albuquerque, NM (US);
Richard C. Givler, Albuquerque, NM (US);
Charles A. Walker, Albuquerque, NM (US);
Sandia Corporation, Albuquerque, NM (US);
Abstract
A method for making a braze joint across a discontinuity in a work piece using alternating current. A filler metal is pre-placed at a location sufficiently close to the discontinuity such that, when an alternating current is applied across a work piece to heat the work piece and melt the filler metal, the filler metal is drawn into the discontinuity. The alternating current is maintained for a set residence time, generally less than 10 seconds and more particularly less than 3 seconds. The alternating current is then altered, generally by reducing the current and/or voltage such that the filler metal can solidify to form a braze joint of desired quality and thickness.