Gas Supply (e.g., By Ingredient Of Electrode, By External Source) Patents (Class 219/74)
  • Publication number: 20140349137
    Abstract: A method for producing a chemically modified metal surface or metal alloy surface or metal oxide layer or metal alloy oxide layer on the surface of a workpiece, which surface or layer includes surface structures having dimensions in the sub-micrometer range. The method involves scanning, one or several times using a pulsed laser beam, the entire surface of the metal or metal alloy, or the metal oxide layer or metal alloy oxide layer on the metal or metal alloy, on which surface or layer the structures are to be produced and which is accessible to laser radiation. The scanning is performed in an atmosphere containing a gas or gas mixture that reacts with the surface, such that adjacent flecks of light of the laser beam adjoin each other without an interspace in between or overlap and a predetermined range of a defined relation between process parameters is satisfied.
    Type: Application
    Filed: December 20, 2012
    Publication date: November 27, 2014
    Inventors: Erhard Brandl, Ante Kurtovic, Tobias Mertens, Dominik Raps
  • Publication number: 20140339202
    Abstract: A welding system includes a welder configured to output welding power to generate an arc between a welding electrode and a workpiece. The welding system also includes a power pin configured to be coupled to the welder in a first orientation or a second orientation. The power pin is configured to switch the welding power from a first polarity to a second polarity when the power pin is switched from being coupled to the welder in the first orientation to being coupled to the welder in the second orientation.
    Type: Application
    Filed: May 15, 2013
    Publication date: November 20, 2014
    Applicant: IIIinois Tool Works Inc.
    Inventors: Benjamin David Romenesko, Ronald Dewayne Woodward, Adam Richard Schmitz, Michael Thomas Schwarz
  • Publication number: 20140319103
    Abstract: A welding assembly includes an adapter, a diffuser, and a nozzle. The adapter includes an inner portion, a discharge portion, and an engagement portion. The discharge portion defines an outer periphery and at least one aperture. The diffuser defines a contact end, a diffusion end and an outer periphery. The contact end is engaged with the discharge portion of the adapter. The nozzle includes a discharge end, an engagement, end and an inner surface. The engagement end defines a groove and engages with the engagement portion of the adapter. The groove and the outer periphery of the diffuser defines at least one discharge passage within the engagement end of the nozzle. The inner portion of the adapter is in fluid communication with the inner surface of the nozzle through the aperture the discharge passage. Shielding gas is directed toward tip portion of the contact tip through the discharge passages.
    Type: Application
    Filed: July 4, 2014
    Publication date: October 30, 2014
    Inventors: JUSTIN DESHON STABB, CLAYTON MICHAEL ALEXANDER, NICKOLAS ISAAC GIBBS, GREGORY SCOTT SABO, CRAIG DAMON STAFF
  • Patent number: 8872056
    Abstract: A method for metalworking using an adjustable vacuum and support system for evacuating particulate matter, smoke, excess gas, and molten metal from a work area during welding and for providing adjustable support to a welding head. The vacuum system has a vacuum head and a vacuum nozzle. An adjustable mounting bracket has a first portion fixed to the vacuum head and a second portion securable to the welding head. The bracket arrangement establishes pivotal and slidable couplings between the welding head and the vacuum head. The vacuum nozzle has a support surface for being rested on a surface of a workpiece to support the vacuum head and the welding head. The support surface can be a base bevel surface at the tip of the nozzle, and an opposed suction bevel surface can have a nozzle aperture interposed therealong.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: October 28, 2014
    Inventor: Charles Klangos
  • Publication number: 20140312005
    Abstract: A system prevents oxidation of a laser cut workpiece by utilizing a laser source that utilizes laser source with an inert gas, such as argon or helium, rather than air or oxygen, to create the slots or kerfs which form the pattern cut into the workpiece. The system introduces oxygen gas through the workpiece as it is being laser cut to oxidize any slag or dross created during the laser cutting process. Oxygen or a mixture of oxygen with other gases cools the slag and the workpiece while at the same time oxidizing the slag to either completely burn or partial burn the slag before it strikes an exposed surface of the tubular member.
    Type: Application
    Filed: July 2, 2014
    Publication date: October 23, 2014
    Inventors: Jeffrey W. Baxter, David Mackiewicz
  • Patent number: 8866041
    Abstract: A manufacturing method of laser diode unit of the present invention includes steps: placing a laser diode on top of a solder member formed on a mounting surface of a submount, applying a pressing load to the laser diode and pressing the laser diode against the solder member, next, melting the solder member by heating the solder member at a temperature higher than a melting point of the solder member while the pressing load is being applied, and thereafter, bonding the laser diode to the submount by cooling and solidifying the solder member, thereafter, removing the pressing load, and softening the solidified solder member by heating the solder member at a temperature lower than the melting point of the solder member after the pressing load has been removed, and thereafter cooling and re-solidifying the solder member.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: October 21, 2014
    Assignees: TDK Corporation, Rohm Co., Ltd, SAE Magnetics (H.K.) Ltd.
    Inventors: Koji Shimazawa, Osamu Shindo, Yoshihiro Tsuchiya, Yasuhiro Ito, Kenji Sakai
  • Publication number: 20140305911
    Abstract: Provided herein is a welding diagnostic device, a method of identifying a metal transfer mode of a welding process presently being performed and a transfer mode identifier for use with a GMAW welding machine. In one embodiment, the welding diagnostic device includes: (1) a welding data interface configured to receive a welding voltage from a welding machine during a welding process and (2) a data acquisition system configured to, during the welding process, determine a metal transfer mode of the welding process based on the welding voltage and provide a sensory indication thereof.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 16, 2014
    Applicant: ISAWE, LLC
    Inventors: Yoni Adonyi, Joseph Russell, Derek S. Hoyt, Nathan Berthiaume
  • Publication number: 20140305910
    Abstract: The present invention is a method and system for reducing contamination in the resulting plasma of a weld produced by a fiber laser. The invention establishes the fiber laser in an optimal configuration for applying a high density beam to a weld material that eliminates spectral interference. The beam is applied in a narrow bandwidth of 1064 nm+/?0.5 nm in one operative condition using an inert shielding gas, preferably argon, in a cross-flow or controlled environment around the welding region to prevent contamination of the plasma forming in the weld region. The method is optimized by determining and avoiding the emission spectrum for the fiber laser and the cover gas or gasses as well as any particular excitation spectra for the weld material. The system can utilize a single laser input, or can utilize multiple lasers joined by coupling means and utilizing a switch to select one or more of the fiber lasers.
    Type: Application
    Filed: March 27, 2013
    Publication date: October 16, 2014
    Applicant: IPG Photonics Corporation
    Inventors: Valentin P. Gapontsev, Chartie Bridge, Michael Lyons, Oleg Shkurikhin, Roberto Alzaga, Darrell Colman, Sebastian Favre
  • Publication number: 20140299581
    Abstract: The invention relates to a method for welding rotors for power generation such as gas turbines, steam turbines, and generators having a plurality of rotor discs arranged along a rotor axis. The method includes providing said discs with a weld seam preparation. The weld seam preparation includes a root, a first, gap-like welding section adjoining the root in radial direction, and a second, gap-like welding section adjoining the first welding section in radial direction. The method further includes melting the root by means of a first welding process; making a weld in the first welding section by means of a second welding process; and filling up the second welding section by means of a third welding process.
    Type: Application
    Filed: March 31, 2014
    Publication date: October 9, 2014
    Inventors: Sorin KELLER, Werner Martin Balbach, Claus Paul Gerdes
  • Publication number: 20140291297
    Abstract: Gas metal arc welding (GMAW) is a widely used process for joining metals. Its main advantage over its competition gas tungsten arc welding (GTAW) is its high productivity in depositing metals. However, to melt metal from the wire to deposit into the work-piece, additional heat is consumed and applied to the work-piece with an uncontrolled fixed proportion to the effective heat that melts the wire. Such additional heat is often in excess of the needed heat input for the work-piece. The side-effects include a waste of the energy, an increased distortion, and possible materials property degradation. This invention is to device a method to transfer this part of heat to melt the wire by adding two wires, which form a pair of arc spots, under a tungsten arc. It also devices a method to assure the arc between the two wires be maintained stable such that the transfer be successfully continuous.
    Type: Application
    Filed: June 13, 2013
    Publication date: October 2, 2014
    Inventors: SHUJUN CHEN, LIANG ZHANG, NING HUANG, XUPING WANG, ZHENYANG LU, FAN JIANG
  • Publication number: 20140263191
    Abstract: A system and method of welding stainless steel to copper is provided. The method includes providing a first workpiece composed of stainless steel and providing a second workpiece composed of copper. The method also includes heating by using a laser a root area of a joint created by the workpieces. The heating by the laser creates a keyhole in at least one of the first workpiece and the second workpiece. The method also includes providing a consumable electrode that is composed of nickel to the joint and creating an arc between the consumable electrode and the joint using a welding current. The preheating of the arc using the keyhole eliminates the need to preheat the second workpiece.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Alvaro ZAPATA, Paul E. Denney, Michael D. Latessa, Maxwell Radke
  • Publication number: 20140263192
    Abstract: A shielding cup used in connection with a welding torch having a torch head that defines gas outlets for supplying an inert gas to an electrode, the shielding cup including an attachment portion adapted to attach to the torch head; and a nozzle portion extending downward from the attachment portion, wherein the nozzle portion has a depth adapted to be received within the groove and defines an enclosed volume substantially surrounding the electrode, the nozzle portion being open at an outward end, wherein the nozzle portion is adapted to channel the inert gas from the torch head within the volume defined by the nozzle portion.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: LINCOLN GLOBAL, INC.
    Inventor: Victor Miller
  • Patent number: 8835808
    Abstract: The present invention relates to a method and apparatus to be used when welding two abutting sections of pipe or tubing, and also to purge blocks for establishing a localized inert atmosphere inside two abutting pipe sections in the region of a desired weld joint. The present invention comprises an inflatable bladder with elongated engaging members that can be removable positioned within the ends of two abutting pipe sections in order to center the two abutting sections of pipe and create the purge block.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: September 16, 2014
    Inventor: John M. Boatner, Jr.
  • Publication number: 20140251960
    Abstract: A method of welding a fuel rod includes the following steps. An end plug and a cladding tube of the fuel rod are brought together to abut each other, and welded by applying a laser beam directed to a welding zone to melt material of the end plug and the cladding tube. The welding is sensed by sensing radiation within a first wavelength range, which includes the wavelength of the laser beam coming from reflections from the welding zone, sensing radiation within a second wavelength range different from the first wavelength range, which includes infrared radiation from melted material, and sensing radiation within a third wavelength range different from the first and second wavelength ranges, which includes radiation from plasma. The welding and melting of material is monitored by monitoring the sensed radiations.
    Type: Application
    Filed: March 22, 2012
    Publication date: September 11, 2014
    Applicant: WESTINGHOUSE ELECTRIC SWEDEN AB
    Inventors: Sten Borell, Tomas Rostvall
  • Publication number: 20140255620
    Abstract: A metal additive method includes directing sonic and/or ultrasonic energy from a probe that is directed toward a melt pool during solidification of the melt pool and formation of a layer, wherein a solid portion of an object on which the pool is positioned at least partially surrounds the melt pool.
    Type: Application
    Filed: December 20, 2013
    Publication date: September 11, 2014
    Applicant: Rolls-Royce Corporation
    Inventors: Quinlan Y. Shuck, Jacque S. Bader
  • Publication number: 20140256462
    Abstract: Some embodiments include a reinforced face of a club head. Other embodiments for related reinforced faces of club heads and related methods are also disclosed.
    Type: Application
    Filed: May 20, 2014
    Publication date: September 11, 2014
    Inventors: Eric V. Cole, Eric J. Morales
  • Publication number: 20140246406
    Abstract: A TIG welding method for a ferrite stainless steel sheet is disclosed, wherein a first shield gas is used wherein the gas is a mixture of argon gas and helium gas, 20 to 90% by volume of helium is included in the mixture, and the flow rate S1 of the first shield gas is set in a range of 0.175 m/sec?S1?1.75 m/sec, and a second shield gas is used wherein the gas is argon gas, and the flow rate S2 of the second shield gas is set in a range of 0.05 m/sec?S2?1.51 m/sec.
    Type: Application
    Filed: October 18, 2012
    Publication date: September 4, 2014
    Inventors: Hiroki Oono, Katsunori Wada
  • Publication number: 20140246405
    Abstract: A laser cutting device includes a control unit which sets a steady oxygen concentration, a moving speed of a laser nozzle and laser beam steady control conditions based on a material and a plate thickness of the workpiece, decreases the moving speed of the laser nozzle to a first setting speed when the laser nozzle arrives a first setting position in front of an end point of a cutting trajectory, and decreases a relative moving speed of the laser nozzle to a second setting speed by varying the oxygen concentration of the cutting gas and the control condition of the laser beam when the laser nozzle arrives at a second setting position.
    Type: Application
    Filed: October 17, 2012
    Publication date: September 4, 2014
    Inventors: Shinji Numata, Hirotaka Kamikihara, Yoshimi Sano
  • Patent number: 8822874
    Abstract: A method and apparatus for microplasma spray coating a portion of a substrate, such as a gas turbine compressor blade, without masking any portions thereof. The apparatus includes a microplasma gun with an anode, cathode, and an arc generator for generating an electric arc between the anode and cathode. An arc gas emitter injects inert gas through the electric arc. The electric arc is operable for ionizing the gas to create a plasma gas stream. A powder injector injects powdered material into a plasma stream. A localized area of the compressor blade is coated with the powdered material without having to mask the compressor blade.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: September 2, 2014
    Assignee: United Technologies Corporation
    Inventors: Paul Zajchowski, Donn Blankenship, Gary C. Shubert
  • Publication number: 20140231401
    Abstract: It is an improved alternative device for welding, comprised of a stainless steel attachment for a cordless motorized driver, with optional extended accessory for greater adjustability. The driver includes a grooved rubber roller, whose rotation feeds a rod in a forward or backward motion, controlled by pressing the corresponding starter buttons for the driver's motor. The attachment is composed of a support ring bracket, connecting a fixed track, and adjustable track. The latter can be adjusted as desired, with the former used as support for stabilizing the rod as it is fed. The driver is designed to comfortably fit an adult hand, and power the feeding process by rotating the driver shaft, on which the rubber roller is fixed. It is an improvement for its ease of use, eliminating the restricted entry in the field, by allowing beginners to safely and efficiently weld.
    Type: Application
    Filed: February 20, 2013
    Publication date: August 21, 2014
    Inventor: Carlos David Del Rio
  • Publication number: 20140231395
    Abstract: A method for joint-welding coated metal sheets in a butt joint. At least one pulverulent welding additive in the form of a gas-powder flow is added to the weld melt via at least one flow duct such that the gas-powder flow leaving the flow duct is directed towards the weld melt at a speed of at least 2 m/s, such that the welding additive mixes turbulently with the weld melt and flow eddies form in the weld melt. A device including at least one welding head for producing and/or focussing an energy beam and at least one flow duct for supplying gas-powder flow, the flow duct having a longitudinal axis, the longitudinal axis and the beam axis of the energy beam being at an angle between 15 and 75 degrees. The flow duct is adapted to set the gas powder flow to a speed of at least 2 m/s.
    Type: Application
    Filed: September 26, 2012
    Publication date: August 21, 2014
    Inventors: Max Brandt, Arndt Breuer, Robert Vollmer, Ralf Kolleck
  • Publication number: 20140231394
    Abstract: An underwater welding apparatus includes: an underwater welding head provided underwater and having, at its leading end, a nozzle section from which laser light is emitted; a shied cover formed of an elastic member and provided around the nozzle section so as to form, at the leading end of the underwater welding head, a space where water is excluded by shield gas; and an expansion/contraction member having a discharge hole for discharging water and shield gas containing metal dust particles from an inside of the shield cover, the discharge hole being increased in diameter as pressure inside the shield cover rises, while being reduced in diameter as the pressure inside the shield cover falls.
    Type: Application
    Filed: August 22, 2012
    Publication date: August 21, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Tatsuya Ishigaki, Takuya Uehara, Yoshio Hamamoto, Osamu Yamaguchi, Takeshi Maehara, Hiromi Kato
  • Patent number: 8809723
    Abstract: For a WIG/TIG welding torch, gas distribution across a cross-section of the gas lens and/or the gas nozzle, is improved and as small a size and as low a weight of the components as possible can be achieved, when an insertion element with a bore in the center through which an electrode is to be guided is arranged, with fan-shaped flow elements being positioned around the bore and twisted relative to the plane of the bore so as to provide for radial deviation of a gas flowing therethrough. The gas lens consists of a base body having a gas distribution channel with at least one gas-lens filter, with an above-described insertion element being arranged in the gas-distribution channel, and with a gas-lens filter, seen in the out-flow direction of the gas, being arranged downstream of the insertion element.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: August 19, 2014
    Assignee: Fronius International GmbH
    Inventors: Jochen Fessl, Melanie Gebesmair, Josef Leeb
  • Publication number: 20140224773
    Abstract: Approaches to a solder ball bonding (SBB) tool and a method for solder ball bonding work pieces. The SBB tool comprises a rotatable feed plate for transporting solder balls from a reservoir to a nozzle, which is a position at which a laser light source can irradiate and melt the solder balls. The melted solder ball is then ejected from the nozzle and onto one or more work pieces, for electrically interconnecting the work pieces. The feed plate is configured with first holes and second holes, the first holes for receiving and transporting solder balls and the second holes for providing an aperture for the laser light to irradiate the solder balls, as the feed plate rotates and the holes are moved to positions in relation to the reservoir and the nozzle.
    Type: Application
    Filed: February 14, 2013
    Publication date: August 14, 2014
    Applicant: HGST NETHERLANDS B.V.
    Inventors: KENICHI MURATA, YUSUKE MATSUMOTO
  • Patent number: 8803022
    Abstract: The invention relates to a welding head for a welding device for welding components which are not rotationally symmetrical onto workpieces such as for example metal sheets, with a head attachment, the head attachment having a holding device for the component and being designed for carrying a welding current to the component, wherein the holding device is mechanically connected by means of a connecting device to an interface device, via which the welding current can be supplied, the connecting device being subdivided into a first connection piece and a second connection piece, which are electrically insulated from each other.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: August 12, 2014
    Assignee: Newfrey LLC
    Inventor: Stefan Hofmann
  • Publication number: 20140217067
    Abstract: A robotic welding cable for a welding torch includes a flexible hose defining a hollow core for passage of welding wire and shielding gas. Conductor strands are arranged around the flexible hose. A composite layered covering includes electrical insulation that covers the conductor strands and an outer jacket that surrounds the electrical insulation. The electrical insulation is formed of an Ethylene Propylene Diene Monomer (EPDM) synthetic rubber, and the outer jacket is formed of a Chlorinated Polyethylene (CPE) synthetic rubber.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 7, 2014
    Inventor: Nauman Basit
  • Publication number: 20140217068
    Abstract: A method for hard surface deposition on aluminium metal parts of a turbine engine using MIG welding equipment which includes a pulsed current generator and pulsed filler metal wire feed, wherein the deposition is achieved using a filler metal wire whose composition is of the same nature as the composition of the aluminium alloy of the part to undergo hard surface deposition, with the pulsed metal wire feed and speed of deposition on the metal part of the turbine engine being adapted to carry out deposition without hot fissuring.
    Type: Application
    Filed: September 27, 2012
    Publication date: August 7, 2014
    Applicants: SNECMA, UNIVERSITÉ DE NANTES, UNIVERSITÉ PARIS SUD (UPS), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)
    Inventors: Jean-Baptiste Mottin, Jean-François Castagne, Thierry Baudin, Alexandre Yann Michel Benoit, Pascal Paillard
  • Publication number: 20140209572
    Abstract: There is provided a contact device (10) for application to an opposing surface (46;50) in use. The contact device comprises a support (12) and a plurality of contact members (14) aligned along the support. Each contact member has an end portion (15) spaced from the support and is independently resiliently mounted to the support such that the end portions (15) can conform to the opposing surface (46;50) in use and thereby provide a seal there-against. The contact members and/or support and may be planar in form and may be cut from a sheet metal material. The contact device may serve as a gas shield or a support jig or clamp device.
    Type: Application
    Filed: January 8, 2014
    Publication date: July 31, 2014
    Applicant: ROLLS-ROYCE PLC
    Inventors: Christopher James WILLIAMS, Martyn Anthony JONES, Andrew James GILMOUR, Andrew James LODGE, Kwok Hei WONG, Jonathan Robert HAM
  • Patent number: 8791384
    Abstract: Disclosed is a method for hybrid welding in which a laser beam is applied to the welding position of objects to be welded, and at the same time, a first wire is fed to the welding position so as to perform arc welding using an arc generated between the objects to be welded and the first wire. In this method, one or more second wires are fed to a molten weld pool formed by the laser beam and arc welding, thereby increasing the amount of welding without increasing the arc current.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: July 29, 2014
    Assignee: Panasonic Corporation
    Inventors: Jingbo Wang, Hitoshi Nishimura
  • Patent number: 8791383
    Abstract: The invention pertains to a method for arc welding with a consumable electrode and with high deposition rates, wherein an alternating current is applied between the electrode and a work piece in order to generate the arc, wherein the alternating current has a current waveform that repeats itself after one period, and wherein the current waveform has at least one positive phase that is divided into at least one positive high-current phase and into at least one positive basic current phase and at least one negative phase within one period. According to the invention, the positive basic current phase is applied within the period after the positive high-current phase and a diffuse arc burns in the negative phase. In this case, it needs to be observed that the positive basic current phase is sufficiently long.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: July 29, 2014
    Assignee: PanGas
    Inventor: Gerald Wilhelm
  • Publication number: 20140202993
    Abstract: A method of welding surface-treated members together using a welding wire includes a step of transferring a droplet detached from the wire to the members and a step of pushing the melt pool in the direction opposite to the direction of welding in such a manner that the gas generated from the members during welding is released from the site of generation. The melt pool is pushed to expose the overlapped region of these members. The gas generated from the members is released to the exposed portion, preventing generation of pores such as blowholes, and also generation of spatters.
    Type: Application
    Filed: March 20, 2014
    Publication date: July 24, 2014
    Applicant: Panasonic Corporation
    Inventors: Atsuhiro Kawamoto, Yasushi Mukai, Junji Fujiwara
  • Publication number: 20140183166
    Abstract: The present invention relates to a manufacturing method for advanced high-strength steel (AHSS) wheel, comprising the following steps. Take an AHSS with at least 590 MPa of tensile strength for rolling to circular ring of a rim. Apply low heat input welding, such as the cold metal transfer (CMT) welding or the gas tungsten arc welding/tungsten inert gas arc welding (GTAW/TIG), at the junction of the rim to form a hollow cylindrical rim. Then perform hole expanding and spinning/roll forming operations to the rim. Take another AHSS with at least 980 MPa of tensile strength for pressing and forming a disk. Apply low heat input welding, such as cold metal transfer (CMT) welding, to the rim and the disk to produce a wheel. According to the present invention, the welding quality of products can be improved significantly; the fatigue lifetime of wheels can be enhanced; and wheels are lightweight.
    Type: Application
    Filed: September 3, 2013
    Publication date: July 3, 2014
    Applicant: METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTRE
    Inventors: CHI-WAH KEONG, CHIH-LUN LIN, CHIA-MIN WEI, CHUN-CHIEH WANG, LUNG-TIEN WU
  • Publication number: 20140166625
    Abstract: The plasma spraying apparatus includes a cathode, a first gas nozzle defining a first gas path between the cathode and itself, a second gas nozzle defining a second gas path between the first gas nozzle and itself, and a third gas nozzle disposed between the first and second gas nozzles to define a third gas path between the first and second gas paths. A wire is disposed at a distal end thereof in front of a nozzle opening of the second gas nozzle. A first gas sprayed through the first gas nozzle is turned into plasma flame, which melts the wire into droplets, and the droplets are sprayed onto a target by a second gas sprayed through the second gas nozzle. The third gas absorbs heat from the plasma flame to thereby turn into a high-temperature gas flow externally of the plasma flame.
    Type: Application
    Filed: December 17, 2012
    Publication date: June 19, 2014
    Applicants: FUJI ENGINEERING CO., LTD., WEST NIPPON EXPRESSWAY COMPANY LIMITED, FUJIGIKEN CO., LTD.
    Inventors: Masanobu SUGIMOTO, Kenichi YAMADA, Masanobu IRIE
  • Publication number: 20140166626
    Abstract: A self-adjusting wire feeder mounting assembly includes a mount fixedly connectable to a multi-axis robotic arm, and a slidable, floating adapter plate for mounting of a wire feeder thereon. The adapter plate is coupled with and slidable about the mount, and the adapter plate is moveable relative to the mount when a force is applied to the wire feeder.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 19, 2014
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventors: Ryan M. Lizotte, Lloyd J. Steed
  • Patent number: 8748777
    Abstract: A tray system is designed to be affixed in a stationary position to a housing of a welding-type system to support a gas cylinder for use with the welding-type system. The tray includes a base extending from the housing to form an interior and a periphery. As such, the interior forms a platform configured to support the gas cylinder proximate to the housing. The tray also includes a wall extending up from the base along at least a portion of the periphery of the base to form a barrier along the portion of the periphery that restricts the gas cylinder from being removed from the base. A lifting tab is included that extends up from the base proximate to the wall to form a pivot axis for the gas cylinder against which the gas cylinder may be tilted and rotated to raise the gas cylinder onto the wall and remove the gas cylinder from the tray without manual lifting.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: June 10, 2014
    Assignee: Illinois Tool Works, Inc.
    Inventors: Jonathan R. Ertmer, Herbert A. Banksthal
  • Publication number: 20140151905
    Abstract: A device includes a tube extending in a longitudinal direction and a hollow channel arranged in the tube. An end part of the tube is formed such that first electromagnetic radiation paths extending in the tube and outside of the hollow channel in the longitudinal direction are focused in a first focus.
    Type: Application
    Filed: December 4, 2012
    Publication date: June 5, 2014
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Michael Sternad, Rainer Pelzer
  • Publication number: 20140151341
    Abstract: Provided with a wire bonding apparatus capable of preventing oxidation of a surface of a free air ball. The apparatus is provided with: a capillary for bonding a wire to each electrode; a horizontal plate provided with a through hole allowing a tip of the capillary to be inserted and removed; and a first and a second antioxidant gas flow channel for allowing an antioxidant gas to be blown to a center of the through hole along an upper surface of the horizontal plate, the gas from the second channel being blown in a direction substantially intersecting with a direction in which the first channel extends. The horizontal plate is configured such that the antioxidant gas on the upper surface of the horizontal plate is allowed to flow outside the horizontal plate from its edges, where no antioxidant gas flow channel is disposed.
    Type: Application
    Filed: February 3, 2014
    Publication date: June 5, 2014
    Applicant: Shinkawa Ltd.
    Inventors: Katsutoshi KUNIYOSHI, Hayato KIUCHI
  • Patent number: 8742282
    Abstract: A plasma gun with two gap electrodes on opposite ends of a chamber of ablative material such as an ablative polymer. The gun ejects an ablative plasma at supersonic speed. A divergent nozzle spreads the plasma jet to fill a gap between electrodes of a main arc device, such as an arc crowbar or a high voltage power switch. The plasma triggers the main arc device by lowering the impedance of the main arc gap via the ablative plasma to provide a conductive path between the main electrodes. This provides faster triggering and requires less trigger energy than previous arc triggers. It also provides a more conductive initial main arc than previously possible. The initial properties of the main arc are controllable by the plasma properties, which are in turn controllable by design parameters of the ablative plasma gun.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: June 3, 2014
    Assignee: General Electric Company
    Inventors: Thangavelu Asokan, Gopichand Bopparaju, Adnan Kutubuddin Bohori
  • Patent number: 8742280
    Abstract: A welding system including a welding power source including power conversion circuitry adapted to receive primary power and to convert the primary power to a weld power output for use in a welding operation and a controller communicatively coupled to the welding power source are provided. The controller is adapted to determine a statistical signature of at least one parameter of a welding process and to utilize the statistical signature to determine at least one of an electrode type, an electrode diameter, and a shielding gas type during the welding operation.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: June 3, 2014
    Assignee: Illinois Tool Works Inc.
    Inventor: Bernard J. Vogel
  • Publication number: 20140138358
    Abstract: A component repair arrangement includes a material depositing electrospark rod configured to deposit a material onto the component. Also included is a first routing hose for flowing a first shielding gas to a location proximate a tip of the material depositing electrospark rod, the first shielding gas removing a plurality of sparks generated proximate the tip.
    Type: Application
    Filed: November 21, 2012
    Publication date: May 22, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Dechao Lin, David Vincent Bucci, Srikanth Chandrudu Kottilingam
  • Publication number: 20140131321
    Abstract: The invention described herein generally pertains to a system and method for a voltage sense lead being disposed on or within a welder gun in a hot wire application (e.g., hot wire laser, hot wire hybrid, and the like) to monitor voltage across the electrode. In this manner, resistive heating can be regulated to ensure that the wire and weld pool (e.g., puddle) temperature are within a desired range. The voltage sense lead can be incorporated into a welder gun or onto a welder gun in order to mitigate inaccuracies and voltage drops resultant of a cable connecting the welder gun to the wire feeder of a hot wire system.
    Type: Application
    Filed: February 25, 2013
    Publication date: May 15, 2014
    Applicant: LINCOLN GLOBAL, INC.
    Inventors: Edward A. ENYEDY, Steven R. PETERS
  • Publication number: 20140131322
    Abstract: Systems and methods to affect heat input to a weld and, therefore, an appearance of a deposited weld bead by modulating a mixing ratio of shielding gases and/or one or more welding parameters. For example, a mixing ratio of two different shielding gases from two sources of shielding gases may be modulated to affect the appearance of a deposited weld bead. The modulation frequency may be based on a selected travel speed of a welding tool. Furthermore, a wire feed speed of a welding electrode may be synergistically modulated with the shielding gases to affect a deposited weld bead appearance. Other welding parameters may be synergistically modulated with the shielding gases to affect a deposited weld bead appearance.
    Type: Application
    Filed: February 26, 2013
    Publication date: May 15, 2014
    Applicant: LINCOLN GLOBAL, INC.
    Inventors: James E. Hearn, Joseph A. Daniel, Tamara Savrin, Steven R. Peters, Daniel P. Fleming, Judah Benjamin Henry
  • Publication number: 20140131320
    Abstract: The invention described herein generally pertains to a method for improved droplet detachment detection in a welding process in which a derivative of at least one welding parameter over time is used to detect droplet detachment from the wire during a welding operation based identification of a peak signature.
    Type: Application
    Filed: November 9, 2012
    Publication date: May 15, 2014
    Applicant: LINCOLN GLOBAL, INC.
    Inventors: James E. HEARN, Steven R. PETERS
  • Publication number: 20140131333
    Abstract: The invention discloses a method to determine the weld joint penetration from arc voltage measurements in gas tungsten arc welding (GTAW). It is based on an observation on the dynamic weld pool surface in GTAW—the surface tends to first expand toward the electrode and then be pushed away from the electrode after full penetration is established. For the pool surface in GTAW, localized partial keyholes around the arc axis as in plasma are welding are not significant. The pool surface is relatively smooth. The arc voltage that reflects changes in the arc length thus first tends to reduce and then increases after full penetration is established. This invention thus tracks the arc voltage until the decrease slope becomes insignificant. Once full penetration is established, the current is reduced to decrease the weld penetration or first decrease the penetration growth for a certain period and then decrease the weld penetration.
    Type: Application
    Filed: November 13, 2012
    Publication date: May 15, 2014
    Inventors: YuMing Zhang, Xiangrong Li, Zeng Shao
  • Patent number: 8723071
    Abstract: An atmospheric shield for isolating a component from an external atmosphere is provided. The atmospheric shield includes an envelope and a base carrying a continuous channel. The base and the envelope are arranged to define an enclosure within which the component to be isolated is located, and such that a portion of the envelope extends within the continuous channel. A seal is provided within the continuous channel to seal between the envelope and the base.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: May 13, 2014
    Assignee: Rolls-Royce PLC
    Inventors: Daniel Clark, Jeffrey Allen
  • Publication number: 20140127530
    Abstract: The present invention relates to dispersion strengthened platinum-base alloys, and more particularly to a method for welding of these alloys and is based on the object of providing an improved process for connecting oxide-dispersed precious metal sheets and a device for carrying out this process.
    Type: Application
    Filed: February 10, 2012
    Publication date: May 8, 2014
    Inventors: Rudolf Singer, Stefan Zeuner, Bernd Weber, Joerg Kopatz
  • Publication number: 20140124482
    Abstract: A cored electrode having reduced moisture pick-up properties and which forms a weld bead with low diffusible hydrogen in a gas shielded electric arc welding process. The cored electrode includes a metal sheath and a fill composition. The fill composition includes titanium dioxide, slag forming agent and a sodium-silica-titanate compound.
    Type: Application
    Filed: January 13, 2014
    Publication date: May 8, 2014
    Applicant: LINCOLN GLOBAL, INC.
    Inventor: Rajeev Katiyar
  • Publication number: 20140116993
    Abstract: A process for cladding a surface of a substrate that includes cleaning the surface just prior to applying the cladding. Oxides, such as base metal oxides, are removed from the surface during the step of cleaning. Cleaning methods include an ionized gas cleaning process that may include forming an arc between an electrode and the surface. Optionally, the step of cleaning can occur in a chamber that is substantially evacuated. The cladding can be applied to the cleaned surface immediately after it has been cleaned.
    Type: Application
    Filed: October 26, 2012
    Publication date: May 1, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: David Anthony Nowak, Vicente de Paula Ortega, Walter de Silva Diniz
  • Patent number: 8704120
    Abstract: A welding device for powder welding is described, which comprises a welding head for transportation of at least one welding electrode to a welding area, and a powder transportation device for transportation of powder from a container to the welding area. The powder transportation device comprises at least a first pipe which at a first end has an opening which is arranged to be placed in the container in order to transport fluxing agent from the container. The powder transportation device comprises at least a first ejector which is connected to the second end of the first pipe and which is arranged to transport powder from the container via the first pipe using pressurized gas.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: April 22, 2014
    Assignee: ESAB AB
    Inventors: Rolf Gösta Larsson, Björn Johansson
  • Publication number: 20140097158
    Abstract: The invention concerns a MIG/MAG-type electric arc welding method that uses a consumable filler wire and gas protection formed by a ternary gaseous mixture comprising 19 to 21% helium, 0.8 to 1.2% CO2 and argon for the remainder (% of volume), in order to weld one or more pieces of stainless steel. According to the invention, the arc is rotary, the consumable filler wire is melted by the arc such as to transfer metal by means of a rotating liquid flow, and the welded parts comprise overlapping ends.
    Type: Application
    Filed: April 20, 2012
    Publication date: April 10, 2014
    Applicant: L'Air Liquide Société Anonyme pour I'Etude et I'Exploitation des Procédés Georges Claude
    Inventors: Laurent Biskup, Jean-Pierre Planckaert