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:
Aug. 20, 2019
Filed:
Mar. 16, 2016
Honeywell International Inc., Morris Plains, NJ (US);
Christopher David Gatto, Gilbert, AZ (US);
Jude Miller, Phoenix, AZ (US);
Benjamin Dosland Kamrath, Canby, MN (US);
Don Mittendorf, Mesa, AZ (US);
Jason Smoke, Phoenix, AZ (US);
Mark C. Morris, Phoenix, AZ (US);
HONEYWELL INTERNATIONAL INC., Morris Plains, NJ (US);
Abstract
Methods for processing bonded dual alloy rotors are provided. In one embodiment, the method includes obtaining a bonded dual alloy rotor including rotor blades bonded to a hub disk. The rotor blades and hub disk are composed of different alloys. A minimum processing temperature (T) for the hub disk and a maximum critical temperature for the rotor blades (T) is established such that Tis less than T. A differential heat treatment process is then performed during which the hub disk is heated to processing temperatures equal to or greater than T, while at least a volumetric majority of each of the rotor blades is maintained at temperatures below T. Such a targeted differential heat treatment process enables desired metallurgical properties (e.g., precipitate hardening) to be created within the hub disk, while preserving the high temperature properties of the rotor blades and any blade coating present thereon.