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:
Jan. 28, 2003
Filed:
May. 29, 2001
Masatoshi Enomoto, Tochigi, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
The joining tool according to the present invention is provided with a rotor and a probe having a diameter smaller than a diameter of the rotor. The probe is protruded from a part of an end face of the rotor. A groove is formed at least on a middle portion of a peripheral surface of the probe so as to extend in the axial direction of the probe. The probe is provided with an agitating protrusion formed only on a region of from the basal end portion of the probe to a longitudinal middle portion. In a friction agitation joining method according to the present invention, the rotating probe of the aforementioned joining tool inserted into stacked joining members such that the groove crosses a superposed interface between the joining members and that the protrusion is buried only in one of the joining members located at a probe basal end side. While keeping this state, the probe is moved relative to the joining members to thereby join the joining members.