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:
May. 22, 2018
Filed:
Apr. 15, 2014
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, Hyogo, JP;
Hidehito Nishida, Kobe, JP;
Syuhei Yoshikawa, Kobe, JP;
Mitsuhiro Kamioka, Kobe, JP;
Shirou Honma, Kobe, JP;
Toshiyuki Hirashima, Kobe, JP;
Kenji Waki, Kobe, JP;
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe-Shi, JP;
Abstract
A friction stir welding apparatus includes: a rotating shaft, on which a thread for friction stirring is formed; and a drive unit rotatably supporting the rotating shaft. A rotating shoulder configured to rotate together with the rotating shaft to generate frictional heat between the rotating shoulder and back surfaces of workpieces is fixed to a distal end of the rotating shaft. The rotating shoulder is pushed against the back surfaces of the workpieces by a pushing mechanism. A stationary shoulder penetrated by the rotating shaft and configured to hold the workpieces in a sandwiching manner together with the rotating shoulder is non-rotatably mounted to the drive unit or a member connected to the drive unit.