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.

Date of Patent:
Nov. 21, 2023

Filed:

Dec. 27, 2017
Applicant:

Tata Steel Limited, Jharkhand, IN;

Inventors:

Suman Guha, Jamshedpur, IN;

Shaik Shamshoddin, Jamshedpur, IN;

Rahul Kumar Verma, Jamshedpur, IN;

Rudra Bubai Sarkar, Jamshedpur, IN;

Assignee:

TATA STEEL LIMITED, Jamshedpur, IN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B44B 5/00 (2006.01); C21D 9/46 (2006.01); B21D 22/04 (2006.01); C21D 7/04 (2006.01); C22F 1/04 (2006.01); B44C 1/24 (2006.01); B44B 5/02 (2006.01); B21D 13/02 (2006.01);
U.S. Cl.
CPC ...
C21D 9/46 (2013.01); B21D 22/04 (2013.01); B44B 5/0052 (2013.01); B44B 5/026 (2013.01); B44C 1/24 (2013.01); C21D 7/04 (2013.01); C22F 1/04 (2013.01); B21D 13/02 (2013.01); C21D 2221/00 (2013.01);
Abstract

The present disclosure discloses a method for improving yield strength of one or more workpieces. The method includes positioning the one or more workpieces in a punch and die assembly and operating the punch and die assembly such that, a plurality of surface protrusions are formed on the one or more workpieces. The plurality of surface protrusions are formed by plastic deformation on the one or more workpieces, to improve yield strength of the one or more workpieces. The present disclosure also provides an apparatus to improve yield strength of the one or more workpieces. The present disclosure is configured to improve yield strength of the one or more workpieces, without altering its mechanical characteristics.


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