Patent application number | Description | Published |
20110101071 | FRICTION STIR WELDING APPARATUS FOR OVERLAPPED JOINTS - In a friction stir welding apparatus for overlapped joints provided with a rotor having a shoulder and a probe that is provided so as to protrude from the shoulder of the rotor and also so as to be disposed concentrically with the center axis of the rotor, a helical groove is formed in the peripheral surface of the probe, from the tip of the probe toward the shoulder, and the depth of the groove is formed so as to gradually decrease from the tip of the probe toward the shoulder. | 05-05-2011 |
20120125522 | METHOD FOR PRODUCING JOINTED MEMBER AND FRICTION STIR WELDING APPARATUS - The present invention relates to a technique for producing a jointed member by subjecting two to-be-jointed members which are contacted each other to friction stir welding. The method for producing a jointed member executes a dwelling step in which a probe is rotated only for a predetermined period at least one of a probe starting point position which is a position of the probe for forming a joint starting point in the to-be-jointed member and a probe end point position which is a position of the probe for forming a joint end point in the to-be-jointed member. | 05-24-2012 |
20120132342 | METHOD FOR MANUFACTURING PANEL STRUCTURE - A method for manufacturing a panel structure in which a reference position of a first frame in an axial direction is first welded to one face of a face plate, a not-yet-welded position closest to the reference position in the axial direction is second welded to the one face, and welding is performed discontinuously to the one face from the not-yet-welded position closest to the reference position at portions on both sides in the axial direction on the basis of the reference position. | 05-31-2012 |
20120298304 | FRICTION STIR WELDING APPARATUS - Provided is a friction stir welding apparatus which performs friction stir welding on a work piece by bringing a tool into contact with a surface of the work piece and rotating and moving the tool about the axis thereof, the friction stir welding apparatus including: a hot air and cool air separating unit which separates a supplied gas into hot air hotter than the gas and cool air cooler than the gas and ejects the hot and cool air, wherein at least one of the hot air and the cool air is supplied to the surface of the work piece. | 11-29-2012 |
20120298724 | FRICTION STIR WELDING TOOL AND FRICTION STIR WELDING APPARATUS - In a bobbin tool including a first shoulder surface which comes into contact with a front surface of a subject work piece, a second shoulder surface which is disposed so as to face the first shoulder surface and comes into contact with a rear surface of the work piece, and a shaft portion which connects the first shoulder surface and the second shoulder surface to each other with a gap therebetween fixed, the first shoulder surface and the second shoulder surface are provided with a first vortex groove and a second vortex groove which extend toward the front side of a tool rotation direction so as to be opened to the outer peripheral edge as it moves to the outer peripheral side. | 11-29-2012 |
20130098526 | FRICTION STIRRING AND JOINING APPARATUS, AND FRICTION STIRRING AND JOINING METHOD - A friction stirring and joining apparatus includes a tool holder; and pressing means provided ahead in the direction of joining by a tool held by the tool holder for pressing a junction surface of a workpiece. The pressing means includes a load imparting section that imparts a load toward the workpiece; a first abutting portion that is provided between the load imparting section and the tool held by the tool holder and abuts on the junction surface in the workpiece; a second abutting portion that is provided opposite the first abutting portion with respect to the load imparting section and abuts on the surface of the workpiece; and a supporting portion that is attached to the load imparting section and supports the first abutting portion and the second abutting portion. | 04-25-2013 |
20130112736 | FRICTION STIR SPOT WELDING DEVICE AND MEMBER SUPPORT THEREFOR - A member support of a friction stir spot welding device has a backing piece having a bearing surface that contacts work-pieces, and a supporting body that supports the backing piece. In the backing piece, the amount of change (δ) in the position of the bearing surface on the extension line of the central axis of rotation between a state in which the bearing surface is in a reference state perpendicular to the central axis of rotation (Ac) of a rotary tool) and a state in which the bearing surface tilts in response to the tilting of the work-pieces, is less than or equal to a predetermined embedding amount (ds) with which the shoulder part of the rotary tool is embedded in the work-pieces. | 05-09-2013 |
20130119115 | FRICTION STIR WELDING DEVICE - A friction stir welding device ( | 05-16-2013 |
20130185941 | METHOD FOR MANUFACTURING VEHICLE BODY FRAME - A method of manufacturing a vehicle body frame of the present invention is a method of manufacturing a vehicle body frame including a roof structure, side structures that face each other, and a floor structure. The method includes a primary joining step of butt-joining only one set of face plates among the inner face plates and outer face plates of the plurality of panel boards that form the side structures, and manufacturing intermediate bodies of the side structures; a structure joining step of joining the roof structure, the floor structure, and the intermediate bodies; and a secondary joining step of joining, after the structure joining step, the other set of face plates among the inner face plates and the outer face plates of the plurality of panel boards that form the intermediate bodies to complete the side structures. | 07-25-2013 |
20140131424 | FRICTION STIR WELDING TOOL AND FRICTION STIR WELDING APPARATUS - In a bobbin tool including a first shoulder surface which comes into contact with a front surface of a subject work piece, a second shoulder surface which is disposed so as to face the first shoulder surface and comes into contact with a rear surface of the work piece, and a shaft portion which connects the first shoulder surface and the second shoulder surface to each other with a gap therebetween fixed, the first shoulder surface and the second shoulder surface are provided with a first vortex groove and a second vortex groove which extend toward the front side of a tool rotation direction so as to be opened to the outer peripheral edge as it moves to the outer peripheral side. | 05-15-2014 |