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:
Apr. 05, 2016
Filed:
Dec. 22, 2014
Uacj Corporation, Tokyo, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-Shi, JP;
Obara Corporation, Fuefuki-Shi, JP;
Masaki Kumagai, Tokyo, JP;
Hideki Okada, Kagamihara, JP;
Arinobu Mori, Fuefuki, JP;
Kenji Hayafuji, Fuefuki, JP;
UACJ Corporation, Tokyo, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-Shi, JP;
Obara Corporation, Fuefuki-Shi, JP;
Abstract
Friction stir spot-welding is performed to join together a stack of a plurality of metal foils and a metal sheet by using a double-acting type rotary tool including a hollow member and a pin member which are movable independently of each other in their axial directions, and a clamp member which is fitted on an outer circumferential surface of the hollow member and which is movable in its axial direction. While an outer annular part of a portion to be friction-stirred is pressed with the clamp member, the pin member is inserted into the above-described portion and the hollow member is retracted, whereby a metal mass is accommodated within a space formed between the above-described portion and the hollow member. Then, the hollow member is advanced to press the metal mass into a hole formed by retraction of the pin member, whereby the hole is filled with the metal mass.