logo

For the Inventor, By the Inventor

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.:

US 11420246 B1

PDFFull Text
Date of Patent:
Aug. 23, 2022

Filed:

Dec. 27, 2019

Method for improving fatigue strength of a workpiece and the workpiece thereof

Applicant:

Tata Steel Limited, Jharkhand, IN;

Inventors:

Suman Guha, Jamshedpur, IN;

Rudra Bubai Sarkar, Jamshedpur, IN;

Rahul Kumar Verma, Jamshedpur, IN;

Gujre Vinay Sanjay, Jamshedpur, IN;

Shaik Shamshoddin, Jamshedpur, IN;

Assignee:

TATA STEEL LIMITED, Jamshedpur, IN;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Jessica Cahill

Assistant Examiner:

Mohammed S Alawadi

Int. Cl.
CPC ...
B21D 22/02 (2006.01); B44B 5/00 (2006.01); B44B 5/02 (2006.01); C21D 9/00 (2006.01); C21D 9/46 (2006.01); B23P 9/00 (2006.01); C21D 7/04 (2006.01);
U.S. Cl.
CPC ...
B21D 22/02 (2013.01); B44B 5/0019 (2013.01); B44B 5/0052 (2013.01); B44B 5/026 (2013.01);
Abstract

The present disclosure discloses a method for improving fatigue strength of a workpiece (). The method comprises positioning the workpiece () in a punch and die assembly (). Operating the punch and die assembly () one or more times to imprint surface features () on a portion of a surface of the workpiece (), wherein the surface features () induces compressive residual stresses at a sub-surface level of the workpiece (), and improves the fatigue strength of the workpiece ().

Find Patent Forward Citations

Guha, Suman. (2022). Method for improving fatigue strength of a workpiece and the workpiece thereof (U.S. Patent No. 11420246). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11420246

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…