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:
Nov. 10, 2020
Filed:
Jan. 12, 2018
General Electric Company, Schenectady, NY (US);
Michal Jerzy Cyrek, Pruszhow, PL;
Waldemar Jan Okrzesik, Warsaw, PL;
Seweryn Grzegorz Skowronski, Warsaw, PL;
General Electric Company, Schenectady, NY (US);
Abstract
A method for determining sufficiency of compressive residual stresses in region below cold worked surface covered by a polished surface. Method includes obtaining surface height data along scanning passes over unpolished surface of the cold worked surface and the polished surface, determining region of surface height data with low and high points, and calculating step height by calculating difference between low and high points. Determining average height of the polished surface and peak height of the unpolished surface for the low and high points respectively. Cold worked surface may be peened surface. Confocal scanning microscope may be used for obtaining surface height data. Method may be used for qualifying a cold working or peening and polishing process for an airfoil which may include at least one feature from group consisting of camber, twist, curve away from the span, and lean away from the span.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile