Patent application number | Description | Published |
20080217377 | Fracture Resistant Friction Stir Welding Tool - Friction stir welding tool to facilitate stress reduction within the tool that may include a body, a pin, a tension member, and an end assembly, the tension member and end assembly facilitating axial compression of the pin. The tension member may be decoupled from the pin and/or body of the tool via one or more decoupling members. The end assembly may comprise spring members to provide an axial force to the tension member. The pin may include various features to facilitate stress reduction proximal the pin. | 09-11-2008 |
20090065553 | FRICTION STIR WELDING APPARATUS - Portable friction stir welding apparatus having a crawler which supports a motor for rotating a Friction Stir Welding tool and is coupled to a drive mechanism for urging the crawler along a predefined weld path on work pieces. The crawler can comprise one member or a set of two or three physically separated members each rotatably coupled to the friction stir welding tool. When one member is used to make a weld, it is located on top of the work pieces. When two members are used to make a weld, one member is located on the top of the work pieces and the second member is located on bottom of the work pieces. When three members are used to make two welds simultaneously on an upper work piece and a lower work pieces, one member of the crawler is located on the top surface of the upper work piece, a second member is located between the two work pieces, and a third member is located on the bottom surface of the lower work piece. The friction stir welding tool for making the weld is rotatably coupled to each member and restricts axial displacement of the physically separate members relative to each other. The members are adapted to engage rails on the work pieces which provide at least one of guiding, alignment, fixturing, torque compensation for the members as the friction stir welding tool is rotated and the crawler is moved along a joint. | 03-12-2009 |
20090148719 | FRICTION-STIR WELDMENTS AND SYSTEMS AND METHODS FOR PRODUCING THE SAME - Friction-stir weldments and systems and methods for producing the same are disclosed. In one embodiment, a metal product includes a first metal plate having a first center-neutral axis, a second metal plate comprising a second center-neutral axis, and a friction-stir corner weld that connects the first metal plate to the second metal plate, where the first center-neutral axis of the first metal plate is transverse to the second center-neutral axis of the second metal plate. In another embodiment, a system for producing friction-stir weldments includes a backup anvil having a first supporting face and a second supporting face, where the first supporting face is adapted to receive and support the first metal plate, and where the second supporting face is adapted to receive and support a second metal plate, wherein the center-neutral axis of the first metal plate is transverse to the center-neutral axis of the second metal plate. | 06-11-2009 |
20090151550 | Concepts for Weldable Ballistic Products for Use in Weld Field Repair and Fabrication of Ballistic Resistant Structures - A joinable, ballistic resistant product and methods of manufacturing same are disclosed, comprising at least one ballistic resistant layer; and at least one joinable layer bonded to the at least one ballistic resistant layer; wherein the at least one ballistic resistant layer is composed of a material that sufficiently resists ballistic threats at a lower areal density than comparable materials joinable to a damaged entity; and wherein the at least one joinable layer is composed of a material that is capable of sufficient joinder to the damaged entity. | 06-18-2009 |
20090188206 | SYSTEM AND METHOD FOR JOINING DISSIMILAR MATERIALS - An assembly includes a first structural member made from a first material, such as aluminum, a second structural member made from a second material, such as magnesium, and adapted to mate and interlock with the first member, and a third structural member made from the first material to facilitate a permanent affixation between the first and second members. The second member fits within the first member and the third member fits within the second member. The second member includes at least one aperture surrounded by a protrusion, and the third member includes at least one aperture that mates and interlocks with the protrusion. A surface of the third member is exposed through the apertures of the first and second members. The first member is welded to the third member through the apertures in order to permanently affix the first and second members to one another without metallurgical altering or local welding of the second member. | 07-30-2009 |
20090212092 | METHOD FOR FORMING FRICTION WELDED COMPRESSION BASED TUBULAR STRUCTURES - A method of making a compression based tubular structure having at least one structural joint using the friction welding process to improve the durability of tubular structures and structural integrity via increased resistance to tension and fatigue type loading and resistance to corrosion. A method of making a compression based tubular structure having at least one structural joint using the friction welding process is provided. In addition, a compression based tubular structure is provided. The compression based tubular structure comprises at least one tubular structure joint, at least one pair of flanges that surround each tubular joint, and a plurality of tension rods that connect the pair of flanges that surround the tubular structure joint. | 08-27-2009 |
20090230106 | BURIED-ARC WELDING WITH THRU-THE-ARC SEAM TRACKING - One embodiment of the present invention relates to a system for buried-arc welding with thru-the-arc seam tracking. Another embodiment of the present invention relates to a method for buried-arc welding with thru-the-arc seam tracking. | 09-17-2009 |
20090230173 | ADVANCED MULTI-SHOULDERED FIXED BOBBIN TOOLS FOR SIMULTANEOUS FRICTION STIR WELDING OF MULTIPLE PARALLEL WALLS BETWEEN PARTS - The present invention discloses a multi-shouldered friction stir welding tool. The multi-shouldered friction stir welding tool comprises an integral shank-pin unit having a plurality of pin portions on the shank-pin unit, where the plurality of pin portions for driving into a plurality of joints to perform a friction stir welding operation on the corresponding plurality of joints and, where a shank portion of the shank-pin unit is for attachment to an optional axial tension rod, each of the friction stir welding modules comprises a pair of shoulders that is connected to the shank-pin unit where each shoulder has a distal end and a proximal end, where the proximal end of each shoulder faces the pin portion of the shank-pin unit, whereby the shoulder and pin(s) rotate in unison, and a pair of split collars or a pair of nuts that is connected to the shank-pin unit and faces the distal end of each shoulder, where the plurality of friction stir welding modules are connected to each other whereby the modules rotate in unison to simultaneously make a plurality of parallel welds. In addition, a method of friction stir welding a plurality of joints simultaneously comprising using at least one multi-shouldered friction stir welding tool is provided. | 09-17-2009 |
20100108742 | FRACTURE RESISTANT FRICTION STIR WELDING TOOLS - Friction stir welding tool to facilitate stress reduction within the tool that may include a body, a pin, a tension member, and an end assembly, the tension member and end assembly facilitating axial compression of the pin. The tension member may be decoupled from the pin and/or body of the tool via one or more decoupling members. The end assembly may comprise spring members to provide an axial force to the tension member. The pin may include various features to facilitate stress reduction proximal the pin. | 05-06-2010 |
20100129683 | FUSION WELDABLE FILLER ALLOYS - Al—Mg and Al—Mg—Zn weld filler alloy compositions for use with fusion weldable 7xxx, 6xxx, 5xxx and 2xxx series aluminum alloy base metals are disclosed. The weld filler alloys may be used for joining a first aluminum base metal segment to a second aluminum base metal segment, where the base metal segments is at least one of 7xxx, 6xxx, 5xxx and 2xxx series aluminum alloy. The weld filler alloys, in wire or rod form, may also be used to repair a defective weld. | 05-27-2010 |
20100163603 | ADVANCED MULTI-SHOULDERED FIXED BOBBIN TOOLS FOR SIMULTANEOUS FRICTION STIR WELDING OF MULTIPLE PARALLEL WALLS BETWEEN PARTS - A multi-shouldered friction stir welding tool ( | 07-01-2010 |
20100276108 | 7XXX WELD FILLER ALLOYS AND METHODS OF USING THE SAME - 7xxx aluminum alloy weld filler alloys and methods of using the same are described. The 7xxx aluminum alloy weld filler alloys may be used to repair 7xxx alloy products. The repaired volume of the 7xxx alloy products may be substantially crack-free, and may facilitate reuse of the repaired 7xxx alloy products. | 11-04-2010 |
20100304078 | FIRE RESISTANT SYSTEMS, METHODS AND APPARATUS - The present disclosure relates to fire-resistant systems, methods, and apparatus. In one embodiment, a fire-resistant system includes a fire-resistant panel and a protected material coupled to the fire-resistant panel. The fire-resistant panel includes a passive layer and a back layer. The passive layer comprises a phyllosilicate material. The back layer comprises an inorganic material and may be coupled to the passive layer. Optionally, the fire-resistant panel may include a secondary layer comprising a functional material, where the functional material comprises one of a phase change material or an endothermic material. | 12-02-2010 |
20110219719 | TRANSITION-JOINTS FOR JOINING DISSIMILAR MATERIALS - An assembly includes a first structural member made from a first material, such as aluminum, and having a first and a second flange, a second structural member having a first and a second flange and made from a second material, such as magnesium, and a third and a fourth structural member made from the first material and each having a first and second flange for contacting with the flanges of the first and second structural members so as to lock the first and second members together. | 09-15-2011 |
20110248119 | STRUCTURAL CONNECTORS AND METHODS OF USING SAME - Structural connectors for watercrafts, buildings and aircrafts are disclosed. In general, each structural connector includes at least a pair of members extending outwardly from and substantially perpendicular to a body of the structural connector, the members spaced apart from one another so as to form a recess therein between. In some embodiments, the recess may be sized and shaped for receiving supporting members including the likes of stringers and support plates. | 10-13-2011 |
20120280485 | SOLID STATE BASED JOINING PROCESSES WITH POST-WELD PROCESSING(S) UNDER COMPRESSION AND APPARATUSES THEREFOR - Methods for welding a first metal part to a second metal part by a solid state process to form a welded article having at least a welded region are provided herein. The welded region of the weld is post-weld aged by heating it to a set temperature for a set time and compressing the weld. | 11-08-2012 |
20120298727 | SELF-GUIDING FRICTION STIR WELDING APPARATUS AND METHOD - One embodiment of a friction stir welding apparatus comprises two friction stir welding tools on a carriage. The first friction stir welding tool is capable of rotating in a first direction. The second friction stir welding tool is capable of rotating in a second direction, counter to the first direction. The first friction stir welding tool and the second friction stir welding tool are operable to weld simultaneously and in tandem along an intersection of at least two work pieces. | 11-29-2012 |
20120325895 | ADVANCED MULTI-SHOULDERED FIXED BOBBIN TOOLS FOR SIMULTANEOUS FRICTION STIR WELDING OF MULTIPLE PARALLEL WALLS BETWEEN PARTS - A multi-shouldered friction stir welding tool comprises an exterior threaded solid pin having a diameter and a length; a shoulder having a threadless inner diameter slightly larger than the diameter of the exterior threaded solid pin and at least one substantially radial threaded set screw hole; an monolithic shoulder-shank having a threadless inner diameter slightly larger than the diameter of the exterior threaded solid pin and at least one substantially radial threaded set screw hole; a pair of locking nuts having a threadless outer diameter and a threaded inner diameter operably compatable with the exterior threaded solid pin, wherein the shoulder and the monolithic shoulder-shank are capable of slidable engagement with the exterior threaded solid pin along the length of the exterior threaded solid pin to set a space slightly larger than a thickness of a work piece to be welded. | 12-27-2012 |
20140262501 | DURABLE COPPER TO ALUMINUM WELDED CONNECTION - A welded electrical connection includes an aluminum electrical conductor welded to a copper electrical conductor. The copper electrical conductor and the aluminum electrical conductor form a butt joint, A ferrule is over the butt joint and attached to the copper electrical conductor and the aluminum electrical conductor. The ferrule is not directly attached to welded portions of the copper electrical conductor and the aluminum electrical conductor. In some embodiments, weld flash is between the butt joint and the ferrule. | 09-18-2014 |
20150072170 | FUSION WELDABLE FILLER ALLOYS - Al—Mg and Al—Mg—Zn weld filler alloy compositions for use with fusion weldable 7xxx, 6xxx, 5xxx and 2xxx series aluminum alloy base metals are disclosed. The weld filler alloys may be used for joining a first aluminum base metal segment to a second aluminum base metal segment, where the base metal segments is at least one of 7xxx, 6xxx, 5xxx and 2xxx series aluminum alloy. The weld filler alloys, in wire or rod form, may also be used to repair a defective weld. | 03-12-2015 |