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:
Jun. 27, 1978
Filed:
May. 31, 1977
Kenneth R Cross, Lebanon, IN (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A method for manufacturing a hybrid, dual property turbine wheel assembly comprising the steps of preforming a blade element and separate support ring of a supperalloy material and locating the blades in support slots in the outer diameter of the support ring and radially outwardly of a preformed inner diameter underlying base tangs on each blade element; vacuum braze sealing each of the base tangs within a support slot and thereafter machining the inside diameter of the ring to expose the base tangs; thereafter joining the ring and undercut base tangs thereon to the outside diameter of a preformed disc element and vacuum braze sealing the hub disc and ring blade assemblies to produce a sealed interface region between the outside diameter of the hub element and the inside diameter of the ring and base tangs; and thereafter directly hot isostatically pressing the joined parts to form a direct diffusion bond between the tangs, ring and disc.