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:
Oct. 25, 2005
Filed:
Feb. 10, 2003
Karl Paul Kroetsch, Williamsville, NY (US);
Ange D. Koeppen, Ransomville, NY (US);
Charles K. Rottner, East Amherst, NY (US);
Karl Paul Kroetsch, Williamsville, NY (US);
Ange D. Koeppen, Ransomville, NY (US);
Charles K. Rottner, East Amherst, NY (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A vacuum brazing method is disclosed for joining aluminum stock materials to each other. The typical cladding material utilized includes aluminum and a melting point lowering agent such as silicon. In addition, the cladding material typically includes magnesium to provide for enhanced wetting of the cladding material into the joint area. It has been found that adjusting the ratio of magnesium to calcium to a level of equal to or greater than 625 to 1 provides greatly enhanced brazed joint formation and reliability of the vacuum brazing method.