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 11633811 B1

PDFFull Text
Date of Patent:
Apr. 25, 2023

Filed:

Aug. 03, 2018

Method of peening lap fillet welded joint and welded structures

Applicant:

Jfe Steel Corporation, Tokyo, JP;

Inventors:

Naoki Yamaguchi, Tokyo, JP;

Tsuyoshi Shiozaki, Tokyo, JP;

Assignee:

JFE STEEL CORPORATION, Tokyo, JP;

Attorney:

Kenja IP Law PC

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
B23K 31/00 (2006.01); B23K 9/23 (2006.01); B23K 9/02 (2006.01); C21D 9/50 (2006.01); C21D 7/06 (2006.01); B23K 9/32 (2006.01); B32B 15/01 (2006.01); C21D 7/00 (2006.01); B32B 15/00 (2006.01); B32B 3/02 (2006.01); B23K 9/22 (2006.01); B32B 3/30 (2006.01); B23K 31/10 (2006.01); B23K 101/00 (2006.01); B23K 9/00 (2006.01);
U.S. Cl.
CPC ...
B23K 31/00 (2013.01); B23K 9/02 (2013.01); B23K 9/22 (2013.01); B23K 9/23 (2013.01); B23K 9/232 (2013.01); B23K 9/32 (2013.01); B23K 31/10 (2013.01); B32B 3/02 (2013.01); B32B 3/30 (2013.01); B32B 15/00 (2013.01); B32B 15/011 (2013.01); C21D 7/00 (2013.01); C21D 7/06 (2013.01); C21D 9/50 (2013.01); B23K 9/00 (2013.01); B23K 2101/006 (2018.08); Y10T 428/1241 (2015.01); Y10T 428/12375 (2015.01); Y10T 428/12396 (2015.01); Y10T 428/12958 (2015.01); Y10T 428/12965 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/12993 (2015.01); Y10T 428/19 (2015.01); Y10T 428/192 (2015.01); Y10T 428/195 (2015.01);
Abstract

A peening method which can sufficiently improve fatigue properties of a lap fillet welded joint having a thin steel sheet as a base sheet, in which a knocking pin having a predetermined shape is continuously knocked as a series of knocking toward a direction inclined relative to the welding direction, the series of knocking is repeatedly performed in the welding direction, at that time, a knocking mark group made of a plurality of knocking marks formed by the series of knocking is superimposed on at least a part of an adjacent knocking mark group while an end part in the direction orthogonal to the welding direction of the knocking mark group is separated from an end part in the direction orthogonal to the welding direction of the adjacent knocking mark group.

Find Patent Forward Citations

Loading…