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:
Mar. 31, 2020
Filed:
Sep. 12, 2017
United Technologies Corporation, Farmington, CT (US);
Michael F. Machinchick, Cromwell, CT (US);
Luke H. Rettberg, West Hartford, CT (US);
Andrew L. Haynes, Glastonbury, CT (US);
Janet M. Stanley, East Hampton, CT (US);
Vasisht Venkatesh, West Hartford, CT (US);
David Ulrich Furrer, Marlborough, CT (US);
James R. Murdock, Tolland, CT (US);
Daniel Gynther, Marlborough, CT (US);
Michael J. Linden, East Haddam, CT (US);
UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);
Abstract
Disclosed is a method of making an integrally bladed rotor. According to the method, a titanium alloy rotor disk with 15-50% by volume of primary alpha grains with a grain size less than 10 μm and secondary alpha grains comprising widmanstatten grains with a grain size less than 1.0 μm is subjected to thermal processing. After thermal processing, a blade having an airfoil and a base is positioned such that a base surface is in contact with an outer rim surface of the disk. Heat, pressure, and motion are applied between the blade and the disk to friction weld the base surface to the disk outer rim surface.