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| Number | Title | Issue Date |
| 7439470 | Method and apparatus for vibrating a substrate during material formation A method and apparatus for affecting the properties of a material include vibrating the material during its formation (i.e., “surface sifting”). The method includes the steps of providing a material formation device and applying a plurality of vibrations to the ... | 10/21/2008 |
| 7322507 | Transducer assembly, capillary and wire bonding method using the same A transducer assembly and wire bonding method has a vibration unit for generating an ultrasonic wave. A body section is coupled to the vibration unit for transferring the ultrasonic wave. A tapered horn is coupled to the body section for transferring and concentrati... | 01/29/2008 |
| 7304267 | Method and a device for depositing a welding material in an annular facing machined in a spherical wall Welding material is deposited automatically in the annular facing. A welding torch is causes to rotate about an axis of rotation that extends in a direction that is radial relative to the spherical wall and that passes through a point of the concave inside surface o... | 12/04/2007 |
| 7299966 | Initial ball forming method for wire bonding wire and wire bonding apparatus An initial ball forming method for wire bonding wire and wire bonding apparatus that uses: a capillary through which a wire is passed; a torch electrode made of a low-melting-point material that contains, for instance, tin; and a direct-current high voltage power su... | 11/27/2007 |
| 7164094 | Apparatus and method for electrofriction welding An apparatus and method arranged to use a combination of at least electrical resistance heating and mechanical friction heating to case a base material and/or a consumable material to reach a combination of temperature and pressure sufficient to cause welding. The m... | 01/16/2007 |
| 7093359 | Composite structure formed by CMC-on-insulation process A method of manufacturing a composite structure uses a layer of an insulating material (22) as a mold for forming a substrate of a ceramic matrix composite (CMC) material (24). The insulating material may be formed in the shape of a cylinder (10... | 08/22/2006 |
| 7084366 | Method for controlling brazing A method for making a braze joint across a discontinuity in a work piece using alternating current. A filler metal is pre-placed at a location sufficiently close to the discontinuity such that, when an alternating current is applied across a work piece to heat the w... | 08/01/2006 |
| 7014738 | Enhanced macroparticle filter and cathode arc source A cathode arc source for depositing a coating on a substrate has an anode and a cathode station for a target, a first filter means comprising a filter duct having at least one bend, and first magnetic means for steering plasma through the filter duct for removal of ... | 03/21/2006 |
| 6994920 | Fusion welding method and welded article A fusion welding method is provided for fusion welding at juxtaposed interface surfaces a first member, for example made of a first metal based on at least one of Ru, Rh, Pd, and Pt, with a second member made of a second metal, for example a high temperature alloy b... | 02/07/2006 |
| 6936145 | Coating method and apparatus A method and apparatus used for the application of plating/coating in a cathodic arc process to improve coating uniformity, deposition rates, quality, cost, packaging, arc triggering, target wear and other improvements is described in the patent. The process improve... | 08/30/2005 |
| 6877210 | Electrofriction method of manufacturing squirrel cage rotors A method of making a squirrel cage rotor of copper material for use in AC or DC motors, includes forming a core with longitudinal slots, inserting bars of conductive material in the slots, with ends extending out of opposite ends of the core, and joining the end rin... | 04/12/2005 |
| 6874673 | Initial ball forming method for wire bonding wire and wire bonding apparatus A wire bonding apparatus having a capillary with a wire passing therethrough; and when the switch of a first direct-current high-voltage power supply is switched ON, a space discharge takes place between the tip end of the wire and a torch electrode, and the tip end... | 04/05/2005 |
| 6835908 | Method and apparatus for electrospark deposition A method and apparatus for controlling electrospark deposition (ESD) comprises using electrical variable waveforms from the ESD process as a feedback parameter. The method comprises measuring a plurality of peak amplitudes from a series of electrical energy pulses d... | 12/28/2004 |
| 6426476 | Laminated rare earth structure and method of making A laminated structure having two or more layers, wherein at least one layer is a metal substrate and at least one other layer is a coating comprising at least one rare earth element. For structures having more than two layers, the coating and metal substr... | 07/30/2002 |
| 6417477 | Method and apparatus for electrospark alloying An electrospark alloying apparatus includes a main body member, a collet coupled to the main body member, and a heat sink adjacent the collet. The collet is adapted to receive and hold a consumable electrode. The apparatus can also include a drive for rot... | 07/09/2002 |
| 6384365 | Repair and fabrication of combustion turbine components by spark plasma sintering A method of consolidating or repairing turbine component parts, such as turbine blades (10), requires providing a turbine component part (60, 61, 62, 63), establishing a contact pressure between the opposing surfaces (40, 42), where, optionally, fine part... | 05/07/2002 |
| 6376793 | Method and device for electric discharge surface treatment using a wire electrode An electric discharge is generated between an electric discharge surface treatment electrode and a wire electrode, and an electric discharge surface treatment material is stuck on the surface of the wire electrode by the energy of the electric discharge. ... | 04/23/2002 |
| 6336950 | Electrode rod for spark deposition, process for the production thereof, and process for covering with superabrasive-containing layer An aspect of this invention is an electrode rod for spark alloying, comprising a compact of a first powder of a first component which comprises a metal selected from a group of Fe, Co, Ni, metals of 4a, 5a and 6a of the periodic table and Si, and a second... | 01/08/2002 |
| 6300588 | Manufacture of repair material and articles repaired with the material A process for the manufacture of repair material. The repair material is ductile and readily mechanically deformed and can be used in the repair of turbine components. The process comprises providing a directionally solidified material, cold-swaging the d... | 10/09/2001 |
| 6020568 | Electro mechanical process and apparatus for metal deposition A process is described for the diffusion or metallizing of one electrically conductive metallic material into and on to the matrix of a second electrically conductive metallic material. The process will occur when the second material is in a solid state c... | 02/01/2000 |
| 5980681 | Process for treatment of metal workpiece surface by electrical discharges A process and an apparatus that can be used for surface preparation and treatment of a metal workpiece surface, for example in a processing stage prior to adhesive assembly, without using environmentally harmful materials. The process comprises triggering... | 11/09/1999 |
| 5869798 | Wear resistant materials having excellent wear resistance and method of manufacturing the material The present invention relates to a wear resistant materials having excellent wear resistance and a method of manufacturing the materials, comprising a process that lugs are formed on surface by electro-sparking welding apparatus having a vibrator, and a p... | 02/09/1999 |
| 5448035 | Method and apparatus for pulse fusion surfacing The invention both rotates and oscillates the electrode at the same time to increase the quality of materials deposited onto a substrate during an pulse fusion surfacing process. The PFS spark rate is also varied to further increase the quality and effect... | 09/05/1995 |
| 5378867 | Repairing method with welding, welding method and welding apparatus for metal member For repairing a metal member by welding, a secondary electrode is connected to the metal member to be repaired. A thin sheet type welding material of about 0.1-0.2 mm thickness is provided on a part of the metal member or a fine welding powder of a proper... | 01/03/1995 |
| 5308409 | Method of strengthening aluminum castings in a specified local part A method of strengthening an aluminum casting by modifying qualities of a specified part thereof comprises the steps of forming a weld overlay on the specified part using powders made of heat resisting element and remelting the specified part, now overlai... | 05/03/1994 |
| 5102031 | Method for depositing braze alloy to base metal surfaces using electric discharge process Braze filler alloy is specifically applied and metallurgically bonded to a desired region of a nickel based superalloy workpiece using an electrospark deposition technique. The braze filler alloy is deposited onto, and concurrently metallurgically alloyed... | 04/07/1992 |
| 5071059 | Method for joining single crystal turbine blade halves Single crystal, nickel based superalloy turbine blades are formed by fusion welding together two matched blade halves. The matched blade halves are joined by an electrospark deposition process which deposits a weld filler metal along the matched faying su... | 12/10/1991 |
| 5043557 | Load voltage detecting device for use in an apparatus for supplying a current variable with time to a load section A load voltage detecting device for use in an apparatus for supplying a current variable with time to a load section. The load voltage detecting device for an apparatus such as a pulsed are welding machine can accurately detect the load voltage from the o... | 08/27/1991 |
| 4937416 | Electrocontact discharge dressing method for grinding wheel An electrocontact discharge dressing for a grinding wheel is performed by contacting a grinding surface of the grinding wheel, which is formed by bonding super hard diamond grains with a metal-based bond, with a pair of electrodes made of steels for gener... | 06/26/1990 |
| 4886202 | Method of making metal matrix monotape ribbon and composite components of irregular shape A method of fabricating irregular shapes wrapped with metal matrix composite monotape utilizing a cylindrical deposition drum wrapped with a spiraling array of evenly spaced strands of high strength fibers and overlaid with a metal matrix, which is cut in... | 12/12/1989 |
| 4866237 | Method of discharge coating and an apparatus therefor A discharge coating apparatus comprises an assembly for applying a vibrational motion in the longitudinal direction of an electrode while applying a voltage pulse in synchronization with the vibration to cause electrical discharge between the surface of a... | 09/12/1989 |
| 4764654 | Process and apparatus for treating electrically conductive matrices and products produced by the process A process for the fusion of a second conductive element into the matrix of a first conductive element is provided in which the second element either as a solid or as a dissociable solution is placed in contact with the first conductive element and subject... | 08/16/1988 |
| 4728488 | Wear resistant zirconium base alloy article for water reactors Slender water displacer rods for use in water reactors are provided with rings of a wear resistant coating spaced along the length of the rod. Each coating contains Cr2 C3 and is metallurgically applied and bonded to the zirconium ba... | 03/01/1988 |
| 4645895 | Method and apparatus for surface-treating workpieces A method of surface-treating a workpiece is described characterized in aping one or more short-duration electrical pulses to produce, for each pulse, a high amplitude short-duration electrical discharge between the workpiece, serving as an anode, and ano... | 02/24/1987 |
| 4628174 | Forming electrical conductors in long microdiameter holes A conductor is provided through a narrow bore hole of a wafer. The hole has a length-to-diameter ratio in excess of six. The conductor is formed by condensation of metal vapor generated at the bottom of said hole by a spark. The spark is generated between... | 12/09/1986 |
| 4556775 | Automatic spark-depositing apparatus A spark-depositing apparatus includes an electrode storage arrangement which stores a plurality of rigid electrodes. When a new electrode is required, a chuck receives one of these electrodes. A clamp brings the chuck to a first position to allow the elec... | 12/03/1985 |
| 4551603 | Device and method for surfacing a workpiece A device and method for surfacing a workpiece establishes a controlled electrostatic potential between an electrode and a workpiece then establishes a spark arc to melt a portion of the electrodes. The electrode is moved prior to any significant current h... | 11/05/1985 |
| 4405851 | Apparatus for transfer of metallic materials by electric discharge An apparatus and process for depositing metal from one conductor to another by electrode deposition. One conductor, the electrode, may remain in contact with the other conductor, the workpiece, as the electrode is continuously oscillated about a central e... | 09/20/1983 |
| 4346281 | Method of and apparatus for discharge-surfacing electrically conductive workpieces A method of and apparatus for the surface treatment of a metallic workpiece, e.g. the coating, hardening or other change (referred to generally as metallurgical modification) of the surface makes use of a rotating tool electrode from a shank of which indi... | 08/24/1982 |
| 4322922 | Method of forming electrical discharge machine tools A simplified method of making and sharpening tools used in electrical discharge machining to avoid the laborious process of making a master die, a plastic master, several graphite blocks, a steel cutting tool and a final graphite block as a finished elect... | 04/06/1982 |
