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. 24, 2020
Filed:
Mar. 29, 2018
Applicant:
Hitachi Power Solutions Co., Ltd., Hitachi-shi, Ibaraki, JP;
Inventors:
Tomio Odakura, Ibaraki, JP;
Akihiro Satou, Ibaraki, JP;
Satoshi Hirano, Tokyo, JP;
Ittou Sugimoto, Tokyo, JP;
Assignee:
Hitachi Power Solutions Co., Ltd., Hitachi-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 20/00 (2006.01); B23K 20/12 (2006.01); C21D 9/50 (2006.01); B23K 101/18 (2006.01); C21D 1/42 (2006.01);
U.S. Cl.
CPC ...
B23K 20/1235 (2013.01); B23K 20/124 (2013.01); B23K 20/1245 (2013.01); C21D 9/505 (2013.01); B23K 2101/18 (2018.08); C21D 1/42 (2013.01); Y02P 10/253 (2015.11);
Abstract
A friction stir welding apparatus includes a FSW tool that is held by a housing and welds to-be-welded members to each other by friction stir, and a gradual cooling device that gradually cools a weld site of the to-be-welded members welded by the FSW tool. The gradual cooling device is a contactless heat source that heats the weld site without coming into contact with the weld site. The contactless heat source is a high-frequency heat source.