Metal fusion bonding – Including means to provide heat by friction between...
Reexamination Certificate
2008-03-19
2009-08-18
Ward, Jessica L (Department: 1793)
Metal fusion bonding
Including means to provide heat by friction between...
C228S002300
Reexamination Certificate
active
07575145
ABSTRACT:
A friction stir welding apparatus capable of stably applying a pressure force without enlarging the apparatus, and a robot having thereof are provided. A rotating tool is provided with a rotational shaft and a hollow surrounding shaft is provided to surround the rotational shaft. The rotational shaft is movable along an axis-of-rotation and is rotated by a rotation drive motor about the axis-of-rotation. The surrounding shaft is rotatably supported by a main frame and an outer threaded portion is formed around the outer peripheral thereof to be threadedly engaged with a nut member. The rotating tool is rotatably supported by a header, and the header and the nut member are coupled together through a bracket. Therefore, when the surrounding shaft is rotated about the axis-of-rotation by the linear movement motor, the rotating tool is linearly moved through the nut member, the bracket and the header, and can apply a pressure force against work pieces.
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Aboagye Michael
Kawasaki Jukogyo Kabushiki Kaisha
Marshall & Gerstein & Borun LLP
Ward Jessica L
LandOfFree
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