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:
Sep. 26, 1989
Filed:
Jun. 20, 1988
Brian Norris, San Diego, CA (US);
Romulo M Martinez, Chula Vista, CA (US);
Francis J Gojny, Bonita, CA (US);
Rohr Industries, Inc., Chula Vista, CA (US);
Abstract
A method of diffusion brazing two or more titanium alloy metal parts, such as sheets, thick sections or a honeycomb core to one or two face sheets, to form a unitary panel. A low melting copper-nickel layer is interposed between the faying surfaces of two parts to be bonded. The layer may be a foil placed between the surfaces or may be a layer plated onto one or both surfaces. The assembly is heated to at least the eutectic melting temperature of the base metal-interlayer eutectic point for a time sufficient to permit effective wetting and diffusion bonding of the surfaces. The assembly is held at the elevated temperature a sufficient additional time so as to allow isothermal solidification to occur. The assembly is then cooled, resulting in a unitary structure. This method is particularly effective with titanium aluminides face sheets and a titanium aluminide or other titanium base honeycomb core and with an interlayer consisting essentially of nickel and copper.