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. 07, 1999
Filed:
Jul. 30, 1998
Jeffrey Alan Kinane, Birmingham, MI (US);
David Robert Collins, Southgate, MI (US);
Grigoriy Grinberg, Sylvania, OH (US);
Paul Earl Pergande, Beverly Hills, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
Method of sprayforming bulk metal deposits that replicate a master pattern: (i) casting and solidifying ceramic about a master pattern to form a spraying pattern; (ii) after removing the spraying pattern from the master pattern, heating the ceramic spraying pattern to a sustained temperature to effect an isothermal diffusion dependent microstructural transformation; (iii) while in such heated condition, thermally spraying allotropic metal particles onto the heated spraying pattern to form a deposit having a bulk thickness, the particles impacting the spraying pattern, or previously deposited particles, at a temperature above the sustained temperature of the spraying pattern; (iv) holding the deposit on the heated spraying pattern sufficiently long enough to allow the particles of the deposit to undergo a diffusion reaction that relieves internal stresses due to deposition and solidification; and (v) thereafter gradually cooling the deposit to room temperature to produce a unitary article with essentially no distortion relative to the spraying pattern.