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:
Nov. 09, 1999
Filed:
Mar. 24, 1998
Masatoshi Enomoto, Oyamashi, JP;
Seiji Tasaki, Oyamashi, JP;
Naoki Nishikawa, Oyamashi, JP;
Ichiro Iwai, Oyamashi, JP;
Takenori Hashimoto, Oyamashi, JP;
Showa Aluminum Corporation, , JP;
Abstract
In a friction agitation joining method for joining metallic joining members, a joining device having a column-shaped rotor of a larger diameter and a pin-shaped probe of a smaller diameter integrally formed on an end of the rotor and protruded along an axis of the rotor is used for joining the metallic joining members. The probe is rotated and inserted into or around a butted portion of the joining members to soften a contact portion contacted by the probe by friction heat and to agitate the contact portion so that the joining members are butt joined. Each joining member has a thick portion at a butting side thereof The rotating rotor is contacted to the thick portions under pressure to soften the thick portions by friction heat so that a gap formed at the butted portion is filled with the materials of the softened thick portions.