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:
Feb. 05, 1980
Filed:
Aug. 14, 1978
Kenneth R Cross, Lebanon, IN (US);
Bruce A Ewing, Martinsville, IN (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A method of fabricating a hybrid dual property wheel assembly includes the steps of preforming a bladed ring of a highly solidified alloy material including a base with a large diameter central opening therethrough and thereafter supporting a metal disc therein to form front and rear joint lines on either side of the juncture between the bladed ring and the disc. The method further contemplates direction of radio frequency energy to the disc to cause it to thermally expand into radially pressed contact with the inside diameter of the bladed ring at an interface therebetween while maintaining the disc and bladed ring under a continuous vacuum atmosphere and heated by the radio frequency energy for maintenance of a diffusion bond temperature between the expanded disc and the surrounding bladed ring of the wheel assembly to form a metallurgical connection therebetween by metal growth across the interface.