Gas Supply (e.g., By Ingredient Of Electrode, By External Source) Patents (Class 219/74)
  • Patent number: 10189105
    Abstract: The shielding gas for MAG welding according to an embodiment is a shielding gas for MAG welding to perform narrow gap welding of a high Cr steel containing 8 wt % to 13 wt % of Cr with one layer-one pass by using a solid wire containing 8 wt % to 13 wt % of Cr, and the shielding gas for MAG welding comprises a ternary mixed gas of 5% by volume to 17% by volume of a carbon dioxide gas, 30% by volume to 80% by volume of a helium gas, and a balance of an argon gas.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: January 29, 2019
    Assignees: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION, TAIYO NIPPON SANSO CORPORATION
    Inventors: Yasuhito Kamijo, Satoru Asai, Katsunori Wada, Makoto Takahashi
  • Patent number: 9821402
    Abstract: This disclosure relates generally to welding, and more specifically, to submerged arc welding (SAW). In an embodiment, a welding system includes a gas supply system configured to provide a gas flow. The system also includes a wire supply system configured to provide welding wire, and a flux supply system configured to provide flux near a welding arc during submerged arc welding (SAW). The system further includes a welding torch assembly configured to receive the gas flow and the welding wire and to deliver the gas flow and the welding wire near the welding arc during SAW.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: November 21, 2017
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Kenneth Allen Fisher, Mario Amata, Steven Barhorst, Joseph Bundy
  • Patent number: 9700954
    Abstract: This disclosure relates generally to welding, and more specifically, to submerged arc welding (SAW). In an embodiment, a welding system includes a gas supply system configured to provide a gas flow. The system also includes a wire supply system configured to provide welding wire, and a flux supply system configured to provide flux near a welding arc during submerged arc welding (SAW). The system further includes a welding torch assembly configured to receive the gas flow and the welding wire and to deliver the gas flow and the welding wire near the welding arc during SAW.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: July 11, 2017
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Kenneth Allen Fisher, Mario Anthony Amata, Steven Edward Barhorst, Joseph C. Bundy
  • Patent number: 9700955
    Abstract: This disclosure relates generally to welding, and more specifically, to submerged arc welding (SAW). In an embodiment, a welding system includes a gas supply system configured to provide a fluorine-containing gas flow. The system also includes a wire supply system configured to provide welding wire, and a flux supply system configured to provide flux near a welding arc during submerged arc welding (SAW). The system further includes a welding torch assembly configured to receive the fluorine-containing gas flow and the welding wire and to deliver the fluorine-containing gas flow and the welding wire near the welding arc during the SAW.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: July 11, 2017
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Kenneth Allen Fisher, Mario Anthony Amata, Steven Edward Barhorst, Joseph C. Bundy
  • Patent number: 9676056
    Abstract: The invention relates to a method for joining two essentially metal sheet-type workpieces. In said method. the edge regions of the workpieces to be joined are placed at a distance from one another, at least one wire-shaped filler material is introduced into a zone between the edge regions before or during the joining process, and edge regions and the filler material are then heated to a predefined joining temperature by at least one first frictional element that moves in relation to the edge regions and the filler material, are subjected to a certain contact pressure, and are joined while being deformed.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: June 13, 2017
    Assignee: Hochschule für angewandte Wissenschaften—Fachhochschule Kempten
    Inventor: Paul Schindele
  • Patent number: 9676049
    Abstract: A magnetic field is generated in a workpiece in a direction orthogonal to the joining direction, and as a result of the Lorentz force resulting from the magnetic field and the current between the plasma torch and the workpiece, the front tip side of the arc is bent forward in the direction of advancement of the plasma torch and welding is performed. The magnetic field strength of the welded part is adjusted by changing the relative positions of the plasma torch and a butting portion of the workpiece.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: June 13, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Hiroki Fujiuchi, Tetsuya Kodama, Toshiyuki Horimukai
  • Patent number: 9669486
    Abstract: A securement member for securing a contact tip to a welding torch assembly is provided. A channel extends axially therethrough and has an internal shoulder that extends into this channel. This internal shoulder abuts against a shoulder on the contact tip, capturing the contact tip between the shoulder and a seating surface on the diffuser and securing the contact tip in the torch assembly. The contact tip is securely seated without threading engagement, facilitating quick release and installation. The exemplary securement member couples to the diffuser such that the egress of fluid from the diffuser is blocked when used for gasless welding. This blocking allows a user to leave the diffuser secured to the welding torch when a gasless electrode is in use.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: June 6, 2017
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventor: Matthew R. Dingeldein
  • Patent number: 9579751
    Abstract: In a stick electrode for electric arc welding having a center alloy wire and an outer cellulose coating which coating includes powdered fluxing agents, alloy powder, cellulose powder and a binder. The improvement involves forming the binder as a solution of sodium silicate and 61-78 percent by weight of the binder. The binder comprises 25-35% of the coating to produce at least about 4% by weight of water in the electrode. Furthermore, the fluxing agent is titanium dioxide with a percentage greater than 12 percent of the coating.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: February 28, 2017
    Assignee: LINCOLN GLOBAL, INC.
    Inventors: Randall M. Burt, Jon P. Chiappone, Craig B. Dallam, Robert J. Weaver
  • Patent number: 9573225
    Abstract: The present disclosure provides three-dimensional (3D) objects, 3D printing processes, as well as methods, apparatuses and systems for the production of a 3D object. Methods, apparatuses and systems of the present disclosure may reduce or eliminate the need for auxiliary supports. The present disclosure provides three dimensional (3D) objects printed utilizing the printing processes, methods, apparatuses and systems described herein.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: February 21, 2017
    Assignee: VELO3D, INC.
    Inventors: Benyamin Buller, Erel Milshtein, Sherman Seelinger
  • Patent number: 9566658
    Abstract: Shielding gas mechanisms for arc welding systems are shown and described. The shielding gas mechanisms each include a gas sensor configured to read and provide a measurement of the shielding gas and a shut-off mechanism configured to stop power to a welding gun when the measurement of the shielding gas falls below a minimum effective level. In some examples, the gas sensor is coupled to the gas line proximal to an inlet of a wire feed unit. In some other examples, the gas sensor is coupled to the gas line proximal to an outlet of the wire feed unit. In even other examples, the gas sensor is coupled to the welding gun.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: February 14, 2017
    Inventor: Frank E. Herrold
  • Patent number: 9511451
    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: Grant
    Filed: July 2, 2014
    Date of Patent: December 6, 2016
    Assignee: Abbott Cardiovascular System Inc.
    Inventors: Jeffrey W. Baxter, David Mackiewicz
  • Patent number: 9278407
    Abstract: A dual-wire hybrid welding system includes a hybrid welding apparatus having laser, electric arc welder and second wire feeding device. Electric arc welder includes first wire feeding device for feeding first wire. Second wire feeding device is arranged and disposed to feed a second wire to electric arc welder. Laser and electric arc welder are arranged and disposed to direct energy toward at least two adjacent components along a joint and first wire is a consumable electrode fed into joint to establish molten pool generated by both laser and arc welder with first wire. Second wire is fed to molten pool to form a common molten pool. Common molten pool is operable to provide a full penetration weld with less total heat input to join the at least two adjacent components without cracking the components at a high constant weld speed.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: March 8, 2016
    Assignee: General Electric Company
    Inventors: Dechao Lin, Srikanth Chandrudu Kottilingam, Brian L. Tollison, Yan Cui, David Schick
  • Patent number: 9145832
    Abstract: A gas shielding device used during a welding step in a controlled atmosphere of a sound attenuation panel includes an inert gas injector to inject inert gas onto the panel and a housing to receive a welding torch. The inert gas injector comprises an inert gas diffuser mounted on the periphery of the housing for receiving the welding torch.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: September 29, 2015
    Assignee: AIRCELLE
    Inventors: Pierre Comon, Nicolas Herve, Jean-Claude Rivoal
  • Patent number: 9073140
    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: Grant
    Filed: February 26, 2013
    Date of Patent: July 7, 2015
    Assignee: Lincoln Global, Inc.
    Inventors: James E. Hearn, Joseph A. Daniel, Tamara Savrin, Steven R. Peters, Daniel P. Fleming, Judah Benjamin Henry
  • Publication number: 20150135897
    Abstract: The disclosure relates to the manufacture of metal articles, more specifically the manufacture of metal articles by additive manufacturing techniques, and in particular to the manufacture of metal articles by an additive manufacturing technique that may involve the selective melting or sintering of a metal powder. Examples of such techniques may include selective laser melting (SLM), selective laser sintering (SLS) and techniques that use an electron beam rather than a laser. Exemplary embodiments include a method of manufacture of an article including selective melting and/or sintering of a powder including an alloy containing aluminium, wherein the alloy contains bismuth.
    Type: Application
    Filed: May 28, 2013
    Publication date: May 21, 2015
    Inventors: Christopher John Sutcliffe, Peter Fox
  • Publication number: 20150136741
    Abstract: [Problem] To provide excellent liquid metal embrittlement cracking resistance to an arc-welded structural member using a Zn—Al—Mg based alloy coated steel plate member without restriction of the species of steel for a base steel for coating and without much increase in cost. [Solution to Problem] In a method for producing an arc-welded structural member containing a step of joining steel members by gas-shielded arc-welding to manufacture a welded structural member, at least one of the members to be joined is a hot dip Zn—Al—Mg based alloy coated steel plate member, and a shielding gas is a gas that is based on an Ar gas, a He gas or an Ar—He mixed gas and has a CO2 concentration CCO2 (% by volume) satisfying the following expression (2) in relation to a welding heat input Q (J/cm): 0?CCO2?2900Q?0.
    Type: Application
    Filed: May 22, 2013
    Publication date: May 21, 2015
    Applicant: NISSHIN STEEL CO., LTD.
    Inventors: Kazuaki Hosomi, Tomokazu Nobutoki, Hiroshi Asada
  • Publication number: 20150129582
    Abstract: The invention described herein generally pertains to a system and method related to adjusting at least one of an arc current for a welding operation, an arc voltage for a welding operation, a wire feed speed for a welding operation, or a height of a torch that performs the welding operation. In particular, a parameter can be updated based upon, for instance, a user input, and the arc current, arc voltage, wire feed speed, or the height of the torch can be calibrated to perform the welding operation. Specifically, while a parameter is being adjusted or transitioned to the setting received via user input, the height of the torch and/or at least one of the arc current level, the arc voltage, the wire feed speed is maintained until the setting is achieved for the parameter. Once the parameter is at the setting, a second arc current level, a second arc voltage, a second wire feed speed, or second height for the torch is implemented to perform the welding operation.
    Type: Application
    Filed: January 30, 2014
    Publication date: May 14, 2015
    Applicant: LINCOLN GLOBAL, INC.
    Inventor: STEPHEN R. COLE
  • Publication number: 20150129560
    Abstract: Provided are a plasma-MIG welding method and a welding torch that are capable of reducing spatter amount without relying on control of a MIG welding power supply. The plasma-MIG welding method employs a plasma-MIG welding device configured from: a plasma torch section that includes a plasma nozzle and a plasma electrode; and an MIG torch that includes an MIG tip and a welding wire. The plasma torch section and the MIG torch are arranged so as to face in different directions at a predetermined distance from each other. The plasma-MIG welding method is characterized in that a plasma arc is made to locally overlap with a tip end portion of the welding wire, and in a state in which melting of the welding wire is promoted, MIG welding is carried out without short-circuiting between a workpiece and a tip end of the welding wire which is a consumable electrode.
    Type: Application
    Filed: February 18, 2013
    Publication date: May 14, 2015
    Inventors: Yusuke Muramatsu, Katsuya Matsumoto, Jun Kitagawa, Keishi Setoda
  • Publication number: 20150129559
    Abstract: Weld metals and methods for welding ferritic steels are provided. The weld metals have high strength and high ductile tearing resistance and are suitable for use in strain based pipelines. The weld metals are comprised of between 0.03 and 0.08 wt % carbon, between 2.0 and 3.5 wt % nickel, not greater than about 2.0 wt % manganese, not greater than about 0.80 wt % molybdenum, not greater than about 0.70 wt % silicon, not greater than about 0.03 wt % aluminum, not greater than 0.02 wt % titanium, not greater than 0.04 wt % zirconium, between 100 and 225 ppm oxygen, not greater than about 100 ppm nitrogen, not greater than about 100 ppm sulfur, not greater than about 100 ppm phosphorus, and the balance essentially iron. The weld metals are applied using a power source with pulsed current waveform control with <5% CO2 and <2% oxygen in the shielding gas.
    Type: Application
    Filed: June 24, 2013
    Publication date: May 14, 2015
    Inventors: Douglas P. Fairchild, Mario L. Macia, Nathan E. Nissley, Raghavan Ayer, Hyun-Woo Jin, Adnan Ozekcin
  • Publication number: 20150122781
    Abstract: The welder interface described above may increase synergy with the welding system for the user. The welder interface receives input parameters of a desired weld from a user and advises a weld process and weld variables for producing the desired weld. The welder interface may be integral with a component of the welding system, or a separate component that may be coupled with the welding system. The welder interface may utilize data from a look-up table, neural network, welding procedure system, or database to advise the weld process and weld variables. The user may utilize the welder interface to simulate the weld process and the effect of the weld variables on a simulated weld. The user may modify the input parameters prior to producing a weld, and the user may modify the weld variables after reviewing the results of the produced weld for subsequent welding applications.
    Type: Application
    Filed: October 31, 2014
    Publication date: May 7, 2015
    Inventor: Bruce Patrick Albrecht
  • Publication number: 20150117937
    Abstract: In a flux-cored wire for welding an ultrahigh tensile strength steel, one or more of CaF2, BaF2, SrF2, and MgF2 are included in the wire and, when a total amount thereof is defined as ?, the ? is more than 2.0% and equal to or less than 8.0% in terms of mass % with respect to a total mass of the wire, one or more of Ti oxide, Si oxide, Mg oxide, and Al oxide are included in the wire and, when a total amount thereof is defined as ?, the ? is 0.01% to 1.20% in terms of mass % with respect to the total mass of the wire, a ratio of an amount of the CaF2 with respect to the ? is 0.50 or more, a ratio of the ? with respect to the ? is 2.0 to 800.0, and Ceq defined in following Expression a is 0.60% to 1.20%, Ceq=[C]+[Si]/24+[Mn]/6+[Ni]/40+[Cr]/5+[Mo]/4+[V]/14??(a).
    Type: Application
    Filed: May 2, 2013
    Publication date: April 30, 2015
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Shuichi Nakamura, Kazuhiro Kojima, Yasuhito Totsuka, Ryuichi Shimura
  • Publication number: 20150108094
    Abstract: A method and device for gas metal arc welding, wherein a wire electrode is melted by an arc, wherein the arc burns between the wire electrode and a work piece, wherein an inert gas is supplied in the form of an inert gas flow, wherein emissions are released in the form of emission particles during gas metal arc welding, and wherein at least one flow gradient is generated in the direction of the work piece for agglomerating the emission particles.
    Type: Application
    Filed: September 17, 2014
    Publication date: April 23, 2015
    Inventors: Erwan Siewert, Rolf Heninger
  • Publication number: 20150108095
    Abstract: A method and apparatus for depositing metals and metal-like substances in two and three dimensional form without a substrate in a safe, rapid and economical fashion using gas shielded arc welding equipment and programmable robotic motion. The method and apparatus includes the use and application of robotic controls, temperature and position feedback, single and multiple material feeds, and semi liquid deposition thereby creating near net shape parts particularly well suited to rapid prototyping and lower volume production.
    Type: Application
    Filed: October 20, 2014
    Publication date: April 23, 2015
    Inventors: THOMAS R. KRUER, JAMES BLACKWOOD
  • Patent number: 9000322
    Abstract: A method of starting a plasma arc torch is provided that includes directing a pre-flow gas and a start shield gas through the plasma arc torch during generation and transfer of a plasma arc, and switching from the pre-flow gas to a plasma gas, and switching from the start shield gas to a primary shield gas after transfer of the plasma arc to a workpiece. A method of stopping a plasma arc torch is also provided that includes directing a plasma gas and a primary shield gas through the plasma arc torch during steady-state operation, and switching from the primary shield gas to a stop shield gas during ramp down of an operating current.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: April 7, 2015
    Assignee: Victor Equipment Company
    Inventors: Daniel Wayne Barnett, Nakhleh A. Hussary
  • Publication number: 20150093287
    Abstract: A a titanium alloy can be applied on a substrate by one of melting, welding, and depositing said titanium alloy on said substrate and solidifying said deposited or molten titanium alloy. Further, 0.01-0.4 weight % Boron can be added to said titanium alloy before or during said melting, welding or depositing said titanium alloy on said substrate.
    Type: Application
    Filed: May 16, 2012
    Publication date: April 2, 2015
    Applicant: GKN Aerospace Sweden AB
    Inventors: Robert Pederson, Frank Skystedt
  • Publication number: 20150090698
    Abstract: A method and device for gas metal arc welding, wherein a current-carrying wire electrode is melted by an arc, and wherein gas metal arc welding is performed using a filler metal, which contains at least one constituent that releases deleterious emissions through evaporation, wherein a composition that does not contain this constituent is selected for the wire electrode, and a dead weld metal containing this constituent is fed to the arc and/or a molten bath without a current.
    Type: Application
    Filed: September 9, 2014
    Publication date: April 2, 2015
    Inventor: Erwan Siewert
  • Publication number: 20150076120
    Abstract: A system includes a welding torch assembly configured to establish a welding arc between an electrode and workpieces separated by a narrow groove utilizing power from a power supply while moving the electrode radially in a desired pattern by a motion control assembly within the welding torch assembly. The welding torch assembly includes a nozzle through which the electrode is fed and within which the electrode is radially moved.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 19, 2015
    Inventors: Kevin Pagano, Bryan Dustin Marschke, Thomas Roger Jaeger, Nauman Basit, Kenneth S. Dobson
  • Publication number: 20150076119
    Abstract: A welding method includes feeding a welding electrode axially from a welding torch, moving the welding electrode radially in a desired pattern with respect to a central axis of the welding torch by a motion control assembly within the welding torch, transmitting from control circuitry a signal corresponding to a position of the welding electrode relative to a weld joint or weld pool, advancing the welding torch or a workpiece to establish a weld, and transferring material from the welding electrode to a first location in an area of the weld pool. The welding electrode moves radially while feeding the welding electrode from the welding torch, the material from the welding electrode is transferred to the first location during a first cycle of the desired pattern, and the first location is controlled based at least in part on the signal.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 19, 2015
    Inventors: Christopher Hsu, Richard Martin Hutchison, Kevin Michael Scott, Kevin Pagano, James Lee Uecker
  • Publication number: 20150069024
    Abstract: A method for gas metal arc welding, as well as to a device for gas metal arc welding and the use of an additional gas during gas metal arc welding, wherein a wire electrode is melted by an arc, wherein the arc burns between the wire electrode and a work piece, and an inert gas is supplied, and wherein an additional gas in the form of at least one additional gas flow directed toward the tip of the wire electrode is supplied in addition to the inert gas.
    Type: Application
    Filed: August 14, 2014
    Publication date: March 12, 2015
    Inventors: Erwan Siewert, Laurentius Dreßel
  • Publication number: 20150068629
    Abstract: A three-dimensional printing process, a swirling device, and a thermal management process are disclosed. The three-dimensional printing process includes distributing a material to a selected region, selectively laser melting the material, and forming a swirling device from the material. The swirling device is printed by selective laser melting. The thermal management process includes providing an article having a swirling device printed by selective laser melting, and cooling a portion of the article by transporting air through the swirling device.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 12, 2015
    Applicant: General Electric Company
    Inventors: Srikanth Chandrudu KOTTILINGAM, Victor John MORGAN, Benjamin Paul LACY, John Wesley HARRIS, Jr., David Edward SCHICK
  • Patent number: 8975558
    Abstract: An electric arc welder for creating an arc welding process between an electrode and a workpiece where the welder comprises a preregulator having a first DC signal as an input and a regulated second DC signal as an output, an unregulated isolation inverter to convert the regulated second DC signal into a DC power signal and a weld control stage for converting the DC power signal into a welding signal. A controller causes the weld control stage to conform the welding signal into a waveform to provide welding process between the electrode and the workpiece, which controller has an output control signal regulated to produce a selected waveform or waveforms and the polarity of the waveform or waveforms. A device selects one of several stored welding processes as a program and a corresponding polarity for outputting by the controller.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: March 10, 2015
    Assignee: Lincoln Global, Inc.
    Inventors: Elliott K. Stava, William T. Matthews
  • Publication number: 20150053652
    Abstract: A shopping cart in one embodiment comprises a uniframe, a mat basket, and a slim-fit cart frame and basket combination, as well as in multiple embodiments, providing individual structural differences and advantages over pre-existing forms of shopping carts.
    Type: Application
    Filed: September 5, 2014
    Publication date: February 26, 2015
    Inventors: Bobby D. Peters, Wesley McMurtrey, Gregory A. Cox
  • Publication number: 20150056005
    Abstract: Provided is a process for producing a welded joint which includes a weld metal having high strength and high toughness, and containing fewer blowholes. The process for producing a welded joint according to the present embodiment includes the steps of: preparing a base material containing, by mass %, not less than 10.5% of Cr; and subjecting the base material to GMA welding using a shielding gas containing 1 to 2 volume % or 35 to 50 volume % of CO2 gas, and the balance being inert gas, thereby forming a weld metal includes, by mass %, C: not more than 0.080%, Si: 0.20 to 1.00%, Mn: not more than 8.00%, P: not more than 0.040%, S: not more than 0.0100%, Cu: not more than 2.0%, Cr: 20.0 to 30.0%, Ni: 7.00 to 12.00%, N: 0.100 to 0.350%, O: 0.02 to 0.11%, sol. Al: not more, than 0.040%, at least one of Mo: 1.00 to 4.00% and W: 1.00 to 4.00%, and the balance being Fe and impurities.
    Type: Application
    Filed: March 27, 2013
    Publication date: February 26, 2015
    Applicant: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Kenta Yamada, Masahiko Hamada, Daisuke Motoya, Shinjiro Nakatsuka, Hisashi Amaya, Hideki Takabe
  • Publication number: 20150048055
    Abstract: A welding method wherein the root gap aperture displacement is measured before welding begins, and a welding material having a Mn/S ratio and a Mn/Si ratio compatible with the measured root gap aperture displacement is selected from gas-shielded arc welding materials. Gas-shielded arc welding is then performed using the selected welding material.
    Type: Application
    Filed: April 3, 2013
    Publication date: February 19, 2015
    Inventors: Seiji Okada, Kazuya Ueda, Akihiro Yamanouchi, Koutarou Inose
  • Publication number: 20150048056
    Abstract: A welding system having a welding gun with a contact tip having an bore extending therethrough and a consumable weld wire. The cross-sectional shape of the bore of the contact tip being is essentially identical to the cross-sectional shape of the weld wire. The bore having an essentially elliptical cross-sectional shape and the weld wire having an essentially elliptical cross-sectional shape.
    Type: Application
    Filed: November 3, 2014
    Publication date: February 19, 2015
    Inventor: Edward L. Cooper
  • Publication number: 20150034605
    Abstract: Embodiments of flux cored welding electrodes and methods of use thereof are disclosed. The flux cored welding electrodes limit brittleness of flux cored arc welds, particularly in thick weld deposits. Limiting brittleness in thick (e.g., from about 1? to about 6?) flux cored arc welds is achieved by utilizing flux cored welding electrodes having chemical compositions that reduce (as compared to presently marketed electrodes) or altogether eliminate niobium and vanadium from their chemical compositions.
    Type: Application
    Filed: July 7, 2014
    Publication date: February 5, 2015
    Inventors: James M. Keegan, Radhika Panday, Jonathan S. Ogborn, Badri K. Narayanan
  • Publication number: 20150027996
    Abstract: A tool welding system is disclosed that includes a table that heats a tool. A multi-axis robot includes a welding head that is moved relative to the table in response to a command. A controller is in communication with the robot and generates the command in response to welding parameters. The weld parameters are based upon a difference between an initial tool shape and a desired tool shape. The difference between the initial tool shape and the desired tool shape corresponds to a desired weld shape. The desired weld shape is adjusted based upon initial tool shape variations, which includes thermal growth of the tool. The tool is welded to provide the desired weld shape to achieve a desired tool shape.
    Type: Application
    Filed: October 14, 2014
    Publication date: January 29, 2015
    Inventor: Ariel Andre Waitzman
  • Publication number: 20150027995
    Abstract: A solid wire is for gas-shielded arc welding, using a shielding gas, and for galvanized steel sheet welding. The solid wire comprises, to the mass of the whole of the solid wire, predetermined amount of C, Si, Mn, P, S, O, and Cr, with the balance consisting Fe and inevitable impurities. The solid wire satisfies “1.0?(percentage by mass of Si+that by mass of Mn)/{100(that by mass of S+that by mass of O}?4.0” and “0.50?percentage by mass of Mn/that by mass of Si?2.00”. The shielding gas is an Ar gas comprising 25 to 40% of CO2 gas. It is achieved to improve spatter-decreasing performance and pore-resisting performance (performance of restraining the generation of porosity defects, such as pits and blowholes).
    Type: Application
    Filed: February 28, 2013
    Publication date: January 29, 2015
    Applicants: DAIHEN Corporation, KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)
    Inventors: Shun Izutani, Kei Yamazaki, Reiichi Suzuki, Keiichiro Yanagi, Yuji Ueda, Kazuki Nakamura, Toshiro Uezono
  • Publication number: 20150014283
    Abstract: A method and system to weld or join coated workpieces using an arc welding operation and at least one hot wire, resistance heated wire. Each of the arc welding and hot wire operation are directed to the same puddle. However, the arc welding operation is offset out of the joint from the hot wire operation, where the hot wire is directed into the joint.
    Type: Application
    Filed: October 2, 2014
    Publication date: January 15, 2015
    Inventors: Steven R. Peters, William T. Matthews, Kent Johns
  • Publication number: 20150014282
    Abstract: A contact tip (1) for gas metal-arc welding comprising: A body (3) of a metal material with a tubular base portion (4) and two or more fingers (5a, 5b) extending in the axial direction from a front end of the base portion; At least one wire-feed conduit (7) extending axially through the body, in which a welding wire is to be received and fed; slots (10a, 10b) arranged between the fingers in order to space these apart, and A spring means (11) surrounding the fingers and exerting a radially acting spring force on the fingers of such strength that the fingers, when cool, are kept spaced apart, such that no pressure will be exerted on the casing surface of a welding wire introduced in the wire-feed conduit, and when heated to a temperature above the softening temperature of the metal material, are compressed by the spring force radially inward in order to exert pressure on the casing surface of a welding wire received in the wire-feed conduit.
    Type: Application
    Filed: December 20, 2011
    Publication date: January 15, 2015
    Applicant: ESAB AB
    Inventor: Hannes Raudsepp
  • Publication number: 20150001183
    Abstract: A welding method, in particular a tack welding method for connecting two components, preferably two components of a fuel system, wherein the regions, of the two components that are to be connected to one another are each heated, and each at least partially melted with a first energy pulse. The partially melted, regions of the two components are connected to one another through the formation of a welding seam. Preferably, after the hardening of the welding seam, a further energy pulse is directed onto the welding seam, with the stipulation that only a midsection of the welding seam is again melted.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Applicant: TI Automotive (Heidelberg) GmbH
    Inventor: Walter Hersel
  • Publication number: 20150001184
    Abstract: The invention described herein generally pertains to a system and method related to influencing a direction of an arc within a welding operation. Within a hot wire welding operation, an arc is generated between an electrode and a workpiece and a welding wire is energized while being supplied to a puddle formed by the electrode in order to deposit the liquefied welding wire onto the workpiece. A welder system and/or method is provided that controls a direction of the arc based on at least one of a polarity of the welding wire (via a power supply that energizes the welding wire), a location of the welding wire in proximity to the arc, a synchronization and/or de-synchronization of a polarity of the welding wire with the electrode, an activation and/or a de-activation of energizing of the welding wire, or a combination thereof.
    Type: Application
    Filed: August 7, 2013
    Publication date: January 1, 2015
    Applicant: LINCOLN GLOBAL, INC.
    Inventors: STEPHEN R. COLE, STEVEN R. PETERS
  • Publication number: 20140377586
    Abstract: The present invention resides in an assembly comprising a first steel component that is joined to a second steel component by a weld joint formed in a hybrid welding process, whereby at least one of the first and second steel components comprises a through-hardened bearing steel. In the hybrid welding process, base material of the first and second steel components is melted and a moulten filler material comprising at least 90% Nickel is added. The weld joint is formed after solidification of the moulten base material and of the moulten filler material. According to the invention, the weld joint comprises a central solidified portion and a peripheral solidified portion, whereby the central solidified portion comprises at least 80% filler material and the peripheral solidified portion comprises no more than 20% filler material.
    Type: Application
    Filed: January 25, 2013
    Publication date: December 25, 2014
    Applicant: Aktiebolaget SKF
    Inventor: John Van De Sanden
  • Patent number: 8915740
    Abstract: A simulator facilitates virtual welding activity of pipe and open root weld joints. The simulator may include a logic processor based system operable to execute coded instructions for generating an interactive welding environment that emulates welding activity on a section of virtual pipe having at least one virtual weld joint. It also includes a display connected to the logic processor based system for visually depicting the interactive welding environment, wherein the display depicts the section of virtual pipe. A mock welding tool is provided for performing virtual welding activity on the at least one weld joint in real time where one or more sensors are adapted to track movement of the input device in real time for communicating data about the movement of the input device to the logic processor based system.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: December 23, 2014
    Assignee: Lincoln Global, Inc.
    Inventors: David Anthony Zboray, Matthew Alan Bennett, Matthew Wayne Wallace, Jeremiah Hennessey, Yvette Christine Dudac, Zachary Steven Lenker, Andrew Paul Lundell, Paul Dana, Eric A. Preisz, Lynn Briggs, Richard B. Droller, Eric C. Briggs
  • Publication number: 20140367366
    Abstract: A welding system includes a gas supply system configured to provide an air flow to a welding application. The gas supply system is configured to draw the air flow from an ambient environment about the gas supply system.
    Type: Application
    Filed: June 6, 2014
    Publication date: December 18, 2014
    Inventors: Michael Scott Bertram, Steven Edward Barhorst
  • Publication number: 20140353286
    Abstract: A method for gas metal arc welding is disclosed, wherein a welding current is passed through a wire electrode and the a wire electrode is melted by a welding arc, wherein at least one parameter that influences Joulean heating of the wire electrode is adjusted.
    Type: Application
    Filed: May 14, 2014
    Publication date: December 4, 2014
    Inventor: Erwan Siewert
  • Publication number: 20140353287
    Abstract: A method for producing a welded joint between a high-strength aluminium alloy with a copper proportion as a first metal and a second metal, in which the welded joint is produced by CMT welding.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 4, 2014
    Applicant: MAGNA STEYR Engineering AG & Co KG
    Inventor: Werner KARNER
  • Publication number: 20140353285
    Abstract: Electrodes for depositing hardfacing alloys containing boron, carbon, chromium, manganese, and silicon on the surface of metal components that are subjected to high thermal and mechanical stresses. The deposited hardfacing alloys have from about 2.5 to about 14.0 atomic weight percent boron and have a hardness on the Rockwell “C” scale of at least about 65 HRC in the first layer of the weld deposit.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Applicant: Lincoln Global, Inc.
    Inventors: Daniel J. Langham, Badri K. Narayanan
  • Publication number: 20140353288
    Abstract: Provided is a welding method and electrodes (wires) with aluminum as a primary deoxidizer and a basic flux system for joining a workpieces with weld metal of comparable strengths and enhanced toughness. For instance, provided is a welding wire, comprising an aluminum content configured to act as a primary deoxidizer, and an overall composition configured to produce a weld deposit comprising a basic slag over a weld bead, wherein the aluminum content is configured to kill the oxygen in the weld pool, and wherein the oxygen comprises oxygen provided by a shielding gas or produced by heating of welding filler materials. Further provided is a welding method comprising arc welding a workpiece using an electrode having aluminum as a primary deoxidizer under a gas shield to produce a bead of weld deposit and a basic slag over the weld bead.
    Type: Application
    Filed: August 19, 2014
    Publication date: December 4, 2014
    Inventors: Mario Anthony Amata, Joseph C. Bundy
  • Publication number: 20140349136
    Abstract: The present disclosure relates generally to welding alloys and, more specifically, to welding consumables (e.g., welding wires and rods) for arc welding operations. In an embodiment, a welding consumable includes less than approximately 1 wt % manganese as well as one or more strengthening agents selected from the group: nickel, cobalt, copper, carbon, molybdenum, chromium, vanadium, silicon, and boron. The welding consumable also includes one or more grain control agents selected from the group: niobium, tantalum, titanium, zirconium, and boron, wherein the welding consumable includes less than approximately 0.6 wt % grain control agents. Additionally, the welding consumable has a carbon equivalence (CE) value that is less than approximately 0.23. The welding consumable is designed to provide a manganese fume generation rate that is less than approximately 0.01 grams per minute during a welding operation.
    Type: Application
    Filed: August 12, 2014
    Publication date: November 27, 2014
    Inventors: Steven Edward Barhorst, Kevin M. Krieger, Joseph C. Bundy, Mario Anthony Amata, Daryl L. Duncan, Susan Renata Fiore