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| Number | Title | Issue Date |
| 8186561 | Solid state processing of hand-held knife blades to improve blade performance A system and method for friction stir processing of a hand-held cutting edge, wherein friction stir processing techniques are used to modify the properties of the hand-held cutting edge to obtain superior edge retention and superior resistance to chipping of the han... | 05/29/2012 |
| 8181841 | Linear friction welder with rocker arms A linear friction welding system in one embodiment includes a ram configured to vibrate along a welding axis, at least one rocker arm with a first end portion spaced apart from the welding axis and constrained against movement along the welding axis, and a second en... | 05/22/2012 |
| 8177113 | Apparatus and system for welding preforms and associated method An assembly for positioning a structural assembly for friction stir welding, and a system and method for friction stir welding the structural assembly are provided. The assembly includes a frame defining an aperture therein, and at least one structural member positi... | 05/15/2012 |
| 8157154 | Three-body joining using friction stir processing techniques A friction stir tool is provided to perform friction stir riveting using a partially consumable pin, wherein the pin includes a cutting edge on a bottom surface thereof, wherein the tool is rotated at a first speed to enable cutting by the pin into a first material ... | 04/17/2012 |
| 8141764 | Friction stir welding apparatus, system and method A friction stir welding system is provided herein. More specifically, traditional friction stir welding requires a rotatable head that is forced against a plurality of work pieces to bond the same. The rotational and normal forces generated by the friction stir weld... | 03/27/2012 |
| 8127977 | Thermal stir welder A welding apparatus is provided for forming a weld joint between first and second elements of a workpiece. The apparatus heats the first and second elements to form an interface of material in a plasticized or melted state interface between the elements. The interfa... | 03/06/2012 |
| 8123104 | Friction welding apparatus, system and method A friction stir welding apparatus is provided herein. More specifically, traditional friction stir welding requires a rotatable head that is forced against a plurality of work pieces to bond the same. The rotational and normal forces generated by the friction stir w... | 02/28/2012 |
| 8109428 | Method of and apparatus for splicing metal strips A method of splicing a trailing end of a downstream metal strip to the leading end of an upstream metal strip. The method has the steps of overlapping the leading end of the upstream strip with the trailing end of the downstream strip, and thereafter friction weldin... | 02/07/2012 |
| 8100311 | Friction stir welding head and method for controlling a friction stir welding head The invention relates to a friction stir welding head having a housing and a welding tool with a rotating welding pin and a rotating shoulder tool for welding workpieces which rest on a workpiece rest, with the shoulder tool, which rotates in synchronism with the we... | 01/24/2012 |
| 8070039 | Linear friction welder A linear friction welding system in one embodiment includes a ram configured to vibrate along a welding axis, a cam follower operably connected to the ram, an eccentric including an eccentric outer periphery operably engaged with the cam follower, and an inner perip... | 12/06/2011 |
| 8056793 | Apparatus and method for friction surfacing using a consumable pin tool A friction surfacing apparatus and method for depositing one or more metals, metal alloys, or other materials is disclosed. The friction surfacing apparatus includes a pin tool holder, a non-consumable shoulder having an inside diameter and an outside diameter, the ... | 11/15/2011 |
| 8052028 | Device for use with a friction stir spot welding (FSSW) apparatus A device for use with a welding apparatus, such as a friction stir spot welding (FSSW) apparatus, that maintains work pieces in a generally flat or flush orientation during a welding operation. The device can be mounted to the operable end of an FSSW apparatus so th... | 11/08/2011 |
| 8047417 | Rotatable tool and apparatus therefor A friction stir weld apparatus having a linear drive actuator and a separate friction stir weld device. The linear actuator and the friction stir weld device are driven by concentric motors. In the preferred embodiment, the thrust member of the actuator is connected... | 11/01/2011 |
| 8033443 | Anvil with rolling elements for friction stir welding In a Friction Stir Welding process a load, applied through a rotating tool, frictionally heats, plasticizes and commingles selected regions of the workpieces while translating along the length of the joint. The load is supported by an anvil. The applied load inhibit... | 10/11/2011 |
| 8025200 | Friction stir welding machine and friction stir welding tool A friction stir welding machine is provided that is adapted to perform solid phase welding on a welding portion of materials to be welded, by pressing a welding tool against the welding portion of the materials to be welded while rotating the welding tool, and forci... | 09/27/2011 |
| 8016179 | Friction stir welding tool having a scroll-free concentric region A friction stir welding tool having a shoulder section with a scroll pattern that terminates prior to the edge or boundary of the shoulder section to create a scroll-free concentric surface area. ... | 09/13/2011 |
| 8006890 | Friction stir processing apparatus with a vibrator An apparatus for a friction stir and a friction stir processing of the present invention suppress an occurrence of a surface defect in an area processed by the friction stir. The apparatus for the friction stir includes a tool having a columnar tip-side part, a rota... | 08/30/2011 |
| 8002162 | Friction-welding device A friction-welding device for the integral joining of components, having an oscillator, which generates a periodic movement of a component and a welding surface provided thereon relative to another, static component and a welding surface provided thereon, with direc... | 08/23/2011 |
| 7992759 | Two spiral stepped friction stir welding tool A method of selecting a geometry for a friction stirring tool, said tool having a melting point that is higher than the workpiece material, wherein the tool is placed in motion against the workpiece to generate heat in the workpiece such that workpiece material is t... | 08/09/2011 |
| 7975896 | Friction plug welding methods and systems Friction plug welding methods and systems plug a hole extending through a component part from front and back faces thereof. A sacrificial plate having an opening therethrough may be positioned against the back face of the component part with assistance from a restra... | 07/12/2011 |
| 7950563 | Apparatus and method for bearing a tool against a workpiece An apparatus for bearing a tool against a workpiece includes: (a) a pneumatically driven motor unit rotating a drive shaft substantially about a longitudinal drive axis; (b) a process shaft coupled with the drive shaft for rotating the tool substantially about a lon... | 05/31/2011 |
| 7931184 | Apparatus for induction friction solid state welding An apparatus for induction friction solid state welding a body having a work piece receiving bore. A stationary chuck is provided for securing a first tubular workpiece in the bore. A moving chuck is provided for securing a second tubular workpiece in bore. An induc... | 04/26/2011 |
| 7909225 | Friction-stir tool with form-adaptable shoulder A friction-stir tool including a rotary-drivable tool body, at whose end facing away from the drive is provided a shoulder, from which extends in the direction of that end of the tool body that faces away from the drive, a rotatable rod-shaped projection that has a ... | 03/22/2011 |
| 7896216 | Sticking pad, friction stir welding machine and friction stir welding system A lightweight, mobile friction stir welding machine, a sticking pad for the friction stir welding machine, and a friction stir welding system are provided. The sticking pad has a flat base member facing an object, an annular sealing member protruding from one of maj... | 03/01/2011 |
| 7882996 | Linear friction welding apparatus using counter load actuators A linear friction welding head apparatus for dual axis forging, the apparatus including three sets of orthogonal actuators for providing X-, Y-, and Z-planes of apparatus movement for providing Y-axis oscillation, a first forge load along a first forge axis, and a s... | 02/08/2011 |
| 7857188 | High-performance friction stir welding tools Friction stir welding tools made of a hardmetal including hard particles having a first material and a binder matrix having a second, different material. ... | 12/28/2010 |
| 7841504 | Apparatus and system for welding self-fixtured preforms and associated method An assembly for positioning a structural assembly for friction stir welding, and a system and method for friction stir welding the structural assembly are provided. The assembly includes a substrate defining a recessed pattern therein, and at least one structural me... | 11/30/2010 |
| 7837082 | Powder metal friciton stir welding tool and method of manufacture thereof A friction stir tool has an axis of rotation and a welding tip that is made of powdered metal material. ... | 11/23/2010 |
| 7832613 | Friction stir welding system A system, in certain embodiments, includes a backing plate, a tungsten-based member disposed along the backing plate, wherein the tungsten-based member defines a welding work surface, and the tungsten-based member comprises curved grooves configured to secure the tu... | 11/16/2010 |
| 7828191 | Friction stir welding machine and friction stir welding tool The present invention is a friction stir welding machine adapted to perform solid phase welding on a welding portion of materials to be welded, by pressing a welding tool against the welding portion of the materials to be welded while rotating the welding tool, and ... | 11/09/2010 |
| 7802713 | Friction stir spot joining device There is provided a friction stir spot joining device wherein stirring-related members are unitized to form a unitized stirring unit and an opening is formed in a friction stir spot joining device body for housing the unitized stirring unit therein. A stirring motor... | 09/28/2010 |
| 7798387 | Friction stir welding apparatus and system A rotational tool retaining member unit 37 is mounted at one end portion thereof to a FSW gun body 26. The rotational tool retaining member unit 37 is provided at the other end thereof with a fitting hole 61 and a plurality of mounting pa... | 09/21/2010 |
| 7793816 | 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 ... | 09/14/2010 |
| 7748593 | Friction stir welding apparatus and method of operating same A friction stir welding apparatus and a method of operating the friction stir welding apparatus are disclosed. The friction stir welding apparatus includes a rotary tool whose extremity constitutes a probe, a retaining arm which supports the rotary tool, and a rolle... | 07/06/2010 |
| 7748591 | Pressure foot clamp for friction stir welding machine Apparatus and methods for clamping and controlling flash around a manufacturing tool engaging a workpiece and preventing fill within the workpiece. In one embodiment, a clamp for securing a workpiece during a manufacturing operation includes a housing and a foot bia... | 07/06/2010 |
| 7748592 | Friction stir welding device A friction stir welding device for welding an article by means of a welding tool, includes: a tool holding section configured to hold the welding tool and rotate round a predetermined reference axial line; rotation driving unit configured to drive the tool holding s... | 07/06/2010 |
| 7735705 | Device and method for joining the faces of parts Device for joining faces of parts having great longitudinal extension by friction welding. The device includes first and second clamping arrangements structured and arranged to position ends of the parts against one another. At least one of the first and second clam... | 06/15/2010 |
| 7717314 | Friction stir welding tool A friction stir welding tool is used in welding structures. The tool comprises a shoulder and a probe extending from the shoulder. The probe has at least three sections equiangularly arranged around the longitudinal axis of the probe, each section comprising at leas... | 05/18/2010 |
| 7703654 | Counter-rotating spindle for friction stir welding A counter-rotating spindle includes a shoulder tool, a pin tool inserted in the shoulder tool, a first motor that is connected with the pin tool and rotates the pin tool, and a second motor that is connected with the shoulder tool and rotates the shoulder tool. The ... | 04/27/2010 |
| 7703655 | Frictional spot joining method and frictional spot joining apparatus In a frictional spot joining where plural metal members lapping over are jointed with a joining device comprising a rotating tool, a receiving tool disposed on a rotational axis of the rotating tool and a drive device to rotate and move the rotating tool in a pushin... | 04/27/2010 |
