Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hajime Kashiki0
Yasuhide Nagao0
Takehiro Hyoue0
Masayuki Inuzuka0
Date of Patent
April 27, 2010
Patent Application Number
12289240
Date Filed
October 23, 2008
Patent Primary Examiner
Patent abstract
In the friction stir joining apparatus of the present invention, a rotation control unit variably controls a rotational speed of a rotor; and a straight movement control unit controls a straight movement of the rotor so as to control a pressure applied by the rotor to the object. The tip portion of the rotating rotor is pressed against a workpiece, thus spot joining is executed. The apparatus can execute frictional stirring joining without practical trouble under simple control.
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