Gas Supply (e.g., By Ingredient Of Electrode, By External Source) Patents (Class 219/74)
  • Patent number: 12011786
    Abstract: Systems and apparatus are disclosed relating to smart regulators and smart manifolds for welding-type systems. A smart regulator may be coupled to a fluid tank and provide information regarding the current pressure(s) and/or flow rate to a remote device and/or operator. The remote device may also determine and/or output additional information, such as, for example, remaining fluid and/or remaining time before the fluid runs out or becomes dangerously low. A smart manifold may be configured to work with several different fluid supplies. In this way, an operator may easily mix fluid types, switch between different fluid types, and/or switch between different fluid tanks.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: June 18, 2024
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Nicholas James Dessart, Alan Adam Manthe
  • Patent number: 11932927
    Abstract: An iron-based metal powder for ultra-high-speed laser cladding comprising chemical composition and mass percentage of the metal powder of: C 0.6˜1.0%, Cr 17.0˜20.0%, Ni 5.0˜6.5%, Mn 2.0˜4.0%, Mo 1.0˜1.5%, Ti 4.0˜6.0%, B 1.0˜1.5%, N 0.08˜0.15%, Si?0.5%, P?0.030%, S?0.030%, balance of Fe and unavoidable impurities, wherein the particle size of the metal powder is 15˜65 ?m, the fluidity is 16˜20 s/50 g.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: March 19, 2024
    Assignee: CHINA MACHINERY INSTITUTE OF ADVANCED MATERIALS (ZHENGZHOU) CO., LTD.
    Inventors: Miaohui Wang, Xueyuan Ge, Borui Du, Bowen Shen, Yifei Xu, Ning Xiao, Sheng Hao
  • Patent number: 11878374
    Abstract: The present invention relates generally to welding gas compositions used as shielding gases in an electric arc welding process. More particularly, the invention is directed a shielding gas compositions used in gas metal or tungsten metal arc welding processes for welding aluminum or aluminum alloy containing work pieces. The compositions comprise from 200 to less than 400 ppm oxygen; from 200 to less than 400 ppm of a second gas selected from nitrous oxide, nitrogen, and combinations thereof; and the remainder being an inert gas preferably selected from argon, helium, and mixtures thereof.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: January 23, 2024
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Philip L. Miller, Kevin A. Lyttle, Jeremy B. Neff, Douglas A. Steyer, Keith G. Pierce
  • Patent number: 11815127
    Abstract: Disclosed is a welded member for plated steel plate having excellent weld zone porosity resistance and fatigue properties and a method of manufacturing the same. The welded member for plated steel plate having excellent weld zone porosity resistance and fatigue properties according to an embodiment of the present invention comprises a weld metal portion formed by arc welding and overlapping a first member and a laminated second member so as to partially overlap the first member, wherein the toe angle (?) of the weld metal portion is 45° or less, and the first member and the second member are plated steel plates.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: November 14, 2023
    Assignee: POSCO CO., LTD
    Inventors: Gyu-Yeol Bae, Tae-Young Lee
  • Patent number: 11794267
    Abstract: A welding torch includes a torch body and at least one device for feeding a consumable welding wire towards the tool center point that has an attachment device for attachment to the torch or an element connected thereto. A base support, which is connected to the attachment device, includes at least two deflection elements for guiding the wire towards the center point. The at least two deflection elements are arranged on the base support so that a first wire path length from the last deflection element located closest to the center point to the center point is shorter than a second wire path length between the last deflection element and a further deflection element as viewed counter to a main wire feed direction, and so that the arcuate wire has a greater segment height along the second path length than the segment height along the first path length.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: October 24, 2023
    Assignee: Fronius International GmbH
    Inventor: Alfred Spiesberger
  • Patent number: 11772182
    Abstract: The present disclosure is directed to systems and methods for pretreating a wire that is used in a welding operation to reduce the amount of hydrogen introduced into a weld. Using embodiments of the systems and methods disclosed herein, one passes a wire through a pre-treatment chamber in which a wire is treated to release hydrogen and/or other contaminants, and provides a gas flow through the pre-treatment chamber so that the contaminants that are released from the wire are taken up by the gas. The gas exiting the pre-treatment chamber may be isolated from the shielding gas utilized during a welding operation. For instance, the pretreatment gas may be directed away from the distal end of the welding torch, thereby preventing released contaminants from being transported into a weld.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: October 3, 2023
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Michael V. Hoeger, Joseph C. Schneider
  • Patent number: 11701731
    Abstract: A method comprising an arc ignition phase (IP), an arc-stabilizing phase (AP) and a stable arc phase (SP). The arc stabilizing phase comprises an initial sub-phase (IS) comprising the step of feeding at least one hot wire (4, 12) at constant feed speed and a main sub-phase (MS) comprising the steps of feeding said hot wire at constant feed speed and feeding at least one cold wire (22) at constant feed speed. The stable arc phase comprises the steps of continuously adjusting the feed speed of the hot wire and continuously adjusting the feed speed of the cold wire. The invention also relates to a welding apparatus (1) for carrying out the method. The welding apparatus comprises a hot wire feeding means (150), a contact means (2), a cold wire feeding means (35) and a control unit (31).
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: July 18, 2023
    Assignee: ESAB AB
    Inventors: Hannes Raudsepp, Martin Andersson, Tomas Johansson, Rikard Ljungkvist
  • Patent number: 11666979
    Abstract: A gas shielded arc welding method includes welding a steel sheet with a tensile strength of 780 MPa or more using a shielding gas containing Ar in an amount of 92 vol. % to 99.5 vol. %. In the gas shielded arc welding method, a value calculated from the following expression (1) is 0.20 or more: {?v/(D/2)2}×10?{(100?CAr)×I/v}×0.1 . . . (1), where CAr represents an Ar content (vol. %) in the shielding gas, D represents an inner diameter (mm) of a nozzle from which the shielding gas is supplied, v represents a welding speed (cm/min), and I represents a welding current (A).
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: June 6, 2023
    Assignees: Kobe Steel, Ltd., Mazda Motor Corooration
    Inventors: Ryota Yamasaki, Kazuya Ikai, Masaaki Tanaka, Mitsugi Fukahori
  • Patent number: 11654514
    Abstract: A shift in position of a laser beam used for welding objects is corrected without need for intervention by a welder. An irradiator performs welding along a welding part of objects to be welded by relatively moving objects to be welded and a nozzle for emitting a laser beam. An arm apparatus movably holds the nozzle while applying a biasing force to the nozzle in a direction toward the welding part such that the nozzle comes into contact with objects to be welded to irradiate the welding part with the laser beam.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: May 23, 2023
    Assignee: KOBAYASHI MANUFACTURE CO., LTD
    Inventor: Yasunori Kobayashi
  • Patent number: 11540705
    Abstract: A welded structure, in which a second tubular member is welded to an inner circumference of a first tubular member made of metal, the second tubular member being made of metal and having an outer diameter smaller than an inner diameter of the first tubular member, includes welded portions at which a portion of the first tubular member and a portion of the second tubular member are melted and solidified, a surface melted and solidified from an inner circumferential surface side of the first tubular member toward an end surface of the second tubular member forms a smoothly-continuous curved surface, and the first and the second tubular members are bonded to each other. A portion of each of the welded portions is located on an outside of a projection region obtained by projecting the second tubular member onto an outer surface of the first tubular member.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: January 3, 2023
    Assignee: OLYMPUS CORPORATION
    Inventors: Takeshi Hidaka, Jumpei Otake, Harutaka Kondo
  • Patent number: 11524352
    Abstract: An additively manufactured object formed by depositing weld bead layers, each of the weld bead layers being obtained by melting and solidifying a filler metal made of a mild steel, the additively manufactured object includes a plurality of the weld bead layers having a ferrite phase with an average grain diameter of 11 ?m or less in a part except for a surface oxide film.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: December 13, 2022
    Assignee: Kobe Steel, Ltd.
    Inventors: Shinji Sato, Takeshi Yamada, Takemasa Yamasaki
  • Patent number: 11504791
    Abstract: Various welding systems including a welding torch assembly are provided. The welding torch assemblies may include a welding torch adapted to be utilized in a welding operation to establish a welding arc between the welding torch and a workpiece. The welding torch assemblies may also include a temperature sensing system integral with the welding torch and adapted to sense a temperature of the workpiece.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: November 22, 2022
    Assignee: Illinois Tool Works Inc.
    Inventors: Derek Yu-Fung Hung, John Alan Luck, Mark Steven Kadlec
  • Patent number: 11453159
    Abstract: A powder layer smoothing devices adapted for use with powder-layer three-dimensional printers are described. The smoothing devices include an oscillating smoothing device that includes a leading edge adapted to cut, remove, and redistribute excess powder in a powder layer. A leveling sled follows the leading edge to trowel and compact the powder in the powder layer.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: September 27, 2022
    Assignee: ExOne Operating, LLC.
    Inventors: Adam W. Stroud, Lucas W. Phalen
  • Patent number: 11418638
    Abstract: Embodiments are directed to an enclosure for an electronic device. In one aspect, an embodiment includes an enclosure having an enclosure component and an internal component that may be affixed along a bonding region. The enclosure component may be formed from an enclosure material and defines an exterior surface of the enclosure and an opening configured to receive a display. The internal component may be formed from a metal material different than the enclosure material. The bonding region may include an interstitial material that has a melting temperature that is less than a melting temperature of either one of the enclosure material or the metal material. The bonding region may also include one or more of the enclosure material or the metal material.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: August 16, 2022
    Assignee: Apple Inc.
    Inventors: Abhijeet Misra, Steven J. Osborne, Ian A. Spraggs, Marwan Rammah, William A. Counts
  • Patent number: 11390020
    Abstract: The invention relates to a method for producing an object from different powdered components by means of additive manufacturing, wherein a plurality of powdered components having different melting points are simultaneously placed in precise positions, and the powder coating (1) is subsequently thermally treated. The construction material is, for example, polyether ether ketone (PEEK), polyaryl ether ketone (PAEK), polyether ketone ketone (PEKK), polyether sulfone, polyimide, polyether imide, polyester, polyamides, polycarbonates, polyurethanes, polyvinyl chloride, polyoxymethylene, polyvinyl acetate, polyacrylates, polymethacrylates, polyethylene, polypropylene, polylactide, ABS (acrylonitrile butadiene styrene copolymers), PETG (glycol modified polyethylene terephthalate), polystyrene, or mixtures thereof. The supporting material is an inorganic salt of the alkali metals, an inorganic salt of the alkaline earth metals, or a mixture thereof.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: July 19, 2022
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventors: Dirk Achten, Bettina Mettmann, Thomas Buesgen, Roland Wagner, Maximilian Wolf
  • Patent number: 11305368
    Abstract: A sensor which includes inductive coils and an inductance to digital converter. The output of the sensor may be used to replace the functions of a switch and a potentiometer to initiate and control various outputs in welding-type systems and applications.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: April 19, 2022
    Assignee: Illinois Tool Works Inc.
    Inventor: Michael V. Hoeger
  • Patent number: 11292070
    Abstract: A welding torch includes a torch body including a flow path forming portion that forms a shielding gas flow path into which an inert gas flows and an outer gas flow path communicating with the shielding gas flow path, a first gas lens that straightens the inert gas in the shielding gas flow path and blows the inert gas out as a shielding gas, and a second gas lens that straightens the inert gas in the outer gas flow path and blows the inert gas out as an outer gas. Provided is an all-position welding device that performs butt welding of tubes, and includes the welding torch and a rotation mechanism for rotating the welding torch around the tube.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: April 5, 2022
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Masahiko Akamatsu, Shingo Yonemoto, Takanori Kozuki, Shinya Hibino, Yukio Ikezawa, Kenichiro Niimi, Akitsugu Arao
  • Patent number: 11254271
    Abstract: A shock absorbing member of the present disclosure is a shock absorbing member including a first hollow member (11) and a second hollow member (12) that are made of aluminum alloy and are weld joined to each other, in which a weld material and weld beads (W) do not project from a side on which a joined surface between the first hollow member (11) and the second hollow member (12) is located.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: February 22, 2022
    Assignees: UACJ CORPORATION, HONDA MOTOR CO., LTD.
    Inventors: Tomoya Yokota, Tatsuo Inagaki, Keiichiro Tsuji, Ryo Kita, Tomohide Sekiguchi, Naoki Takaki
  • Patent number: 11203080
    Abstract: Provided is a welding method using a special torch and a flux cored wire, in which the special torch has a suction nozzle between the contact tip and the shield nozzle, and the flux cored wire has a flux filled inside the steel outer casing, and a seam portion where both ends of a metal in a width direction of the steel outer casing are butted or overlapped in a longitudinal direction of the flux cored wire.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: December 21, 2021
    Assignee: Kobe Steel, Ltd.
    Inventors: Naoki Mukai, Tokuji Maruyama, Reiichi Suzuki
  • Patent number: 11179795
    Abstract: The disclosure includes a welding cup system comprising a tube having an open top, an open bottom, a sidewall extending between the open top and the open bottom, and an open channel. The open channel may extend through an interior portion of the tube from the open top to the open bottom. The open top may be arranged and configured to slideably couple to at least a portion of a torch assembly. The open channel may be arranged and configured to allow gas to flow from the open top to the open bottom, and allow a welding electrode to extend through the open channel from open top towards the open bottom. The welding cup system may have a side profile that may define an asymmetrical shape.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: November 23, 2021
    Inventor: Arthur Wu
  • Patent number: 11135670
    Abstract: A submerged arc welding apparatus includes a first wire feeder feeding a first hot wire towards a work piece; a first contact tube transferring current to the first hot wire for arc generation to create a weld puddle; a second wire feeder feeding a cold wire at a variable feed speed towards the weld puddle; one or more sensors configured to continuously measure, during a welding phase, at least a first active welding parameter related to at least the first hot wire; and a control unit. The control unit is configured to determine different target values for the variable feed speed of the cold wire based on different values of the at least a first active welding parameter such that a different target value for the variable feed speed of the cold wire is determined according to a different value of the at least a first active welding parameter.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: October 5, 2021
    Assignee: ESAB AB
    Inventors: Hannes Raudsepp, Martin Andersson, Tomas Johansson, Rikard Ljungkvist
  • Patent number: 11123814
    Abstract: A wire feeder that is powered at least partially by a battery is provided. The wire feeder includes a welding wire spool and a welding wire drive system for receiving welding wire from the spool and feeding the wire through a flexible conduit attached to an enclosure of the wire feeder. A motor of the wire feeder drives the welding wire drive system, powered at least in part by the battery. The wire feeder includes a battery receptacle for receiving the battery. In certain embodiments, the wire feeder may be attached to a body of a user via a harness system.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: September 21, 2021
    Assignee: Illinois Tool Works Inc.
    Inventors: John Alan Luck, Stephen Paul Ferkel
  • Patent number: 11026339
    Abstract: A method for producing a housing for electronics in which the housing is formed by a first housing element and a second housing element and in which the housing elements are composed of aluminum or an aluminum alloy. The method further includes connecting the housing elements to one another by welding so that the housing elements are held tightly together. The method also includes producing at least one of the housing elements by a die casting method in which gas that is created in the die-casting method is evacuated from the housing element by helium gas.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: June 1, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Eppel, Michael Schermann, Reiner Ramsayer, Wolfgang Glueck
  • Patent number: 10987737
    Abstract: Provided is a laminate molding apparatus including a chamber, a laser irradiation device, an inert gas supply device, a fume collector, and an evacuate device. The evacuate device includes an intake port, an evacuate amount adjusting portion, a controller, and an evacuate port. The intake port is connected to any part of the laminate molding apparatus through which the inert gas flows, and takes in the inert gas. The evacuate amount adjusting portion adjusts an evacuate amount of the inert gas. The controller controls the evacuate amount adjusting portion to evacuate the inert gas such that an atmospheric pressure in the chamber and an external atmospheric pressure become uniform within a range in which leakage of the inert gas from the chamber is suppressed. The evacuate port evacuates the inert gas from which fumes have been removed to the outside of the laminate molding apparatus.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: April 27, 2021
    Assignee: Sodick Co., Ltd.
    Inventors: Shuichi Kawada, Katsuhiro Nakano
  • Patent number: 10960484
    Abstract: The present disclosure is directed to a component of a welding device that is configured to produce a shielding gas having a developed flow profile, which provides for a shielding gas column having a laminar profile over a greater length than has been achieved through conventional means. The component utilizes one or more flow restrictors, which are configured to provide higher resistance to the flow of shielding gas at increasing distances from the center of a shielding gas flow channel. By providing increasing resistance toward the periphery of the channel, a developed shielding gas flow profile may be achieved over a relatively short flow length.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: March 30, 2021
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Michael Hoeger, Zachary Erndt
  • Patent number: 10864594
    Abstract: A gas-shielded arc welding method includes feeding a consumable electrode via a welding torch and performing welding while flowing a shielding gas. The welding torch includes a nozzle. An inner diameter of the nozzle is 15 mm or more. A nozzle-base material distance between a tip of the nozzle and a material to be welded is 22 mm or less. A ratio expressed by (the inner diameter of the nozzle/the nozzle-base material distance) is 0.7 or more and 1.9 or less.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: December 15, 2020
    Assignees: Kobe Steel, Ltd., Mazda Motor Corporation
    Inventors: Minoru Miyata, Reiichi Suzuki, Masaaki Tanaka, Mitsugi Fukahori, Takashi Ogawa
  • Patent number: 10766094
    Abstract: A plasma ejection unit (21) of an arc welding device includes a plasma torch (26), a copper plate (27), a container (28), and a gas supplying unit (29). Plasma gas inside the container (28) is pressurized by argon gas supplied from the gas supplying unit (29), and ejected from first to eighth ejection ports. The plasma gas ejected from the first to eighth ejection ports is concentrated in a concentration area (CA) between vehicle body plates (16-17) to form through holes (40) in the vehicle body plates (16-17), and is separated. The air pressures, in eight areas, of the plasma gas reaching a vehicle body plate (18) are approximately one-eighth of the air pressure of the plasma gas in the concentration area (CA). Accordingly, while the through holes (40) are formed in the vehicle body plates (16-17), no through hole is formed in the vehicle body plate (18).
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: September 8, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yosuke Hiruma, Keishi Setoda, Yusuke Muramatsu
  • Patent number: 10730140
    Abstract: Hybrid manual and automated welding systems and methods are described. A hand-held welding tool is manually positioned to engage a workpiece. The hand-held welding tool includes a motion device that is configured to automatically move a contact tip or a welding heat source during a welding operation after a manual triggering. A welding arc is automatically and repeatedly turned off and on to make a string of overlapping and equally spaced spot welds while the contact tip or the welding heat source moves from the first position to the second position.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: August 4, 2020
    Assignee: Illinois Tool Works Inc.
    Inventor: Christopher Hsu
  • Patent number: 10722968
    Abstract: A method for monitoring a spatter generating event during a welding application. The method includes capturing data that corresponds to a welding current of the welding application. The method also includes detecting parameters associated with a short circuit from the captured data. The method includes analyzing the detected parameters to monitor the spatter generating event during the welding application.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: July 28, 2020
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Richard Martin Hutchison, Todd Earl Holverson, James Lee Uecker
  • Patent number: 10695858
    Abstract: The present invention relates to a welding torch including a mounting jig for mounting a wire-aiming guide which feeds a welding wire toward a molten pool of a work piece, wherein the mounting jig has a male screw that can be screwed into a female screw provided in a torch body, and is detachably mounted to the torch body; and a mounting jig. The present invention provides the welding torch with which a wire-aiming guide can be stably mounted and which can mount a highly versatile wire-aiming guide; and the mounting jig.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: June 30, 2020
    Assignee: TAIYO NIPPON SANSO CORPORATION
    Inventor: Katsunori Wada
  • Patent number: 10668553
    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: Grant
    Filed: September 9, 2014
    Date of Patent: June 2, 2020
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventor: Erwan Siewert
  • Patent number: 10543558
    Abstract: A diffuser insert is provided for use with a welding diffuser and contact tip assembly comprising a diffuser with an interior chamber configured to receive a wire conduit that supplies electrode wire and a shielding gas used during a welding operation and a contact tip coupled to the diffuser and configured to receive electrode wire. The diffuser insert comprises a diffuser insert body configured to be disposed within the interior chamber of the diffuser, and further comprises an insert bore extending therethrough configured to receive electrode wire. An outer periphery of the diffuser insert has at least one surface feature configured to manipulate a flow of said shielding gas from within said interior chamber of the diffuser and out of exit passages to thereby direct said flow of shielding gas about a molten welding puddle formed during a welding operation.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: January 28, 2020
    Assignee: Lincoln Global, Inc.
    Inventors: Brian Meess, Jeffrey Kachline
  • Patent number: 10471544
    Abstract: Methods for joining a first blank and a second blank, wherein the first blank and the second blank include a steel substrate with a coating including a layer of aluminum or an aluminum alloy. The method includes selecting a first portion of the first blank to be joined to the second blank, and selecting a second portion of the second blank to be joined to the first portion, and welding the first portion to the second portion. The welding includes using a laser beam and an arc welding torch, wherein the arc welding torch includes a wire electrode, wherein the wire electrode is made of a steel alloy including gammagenic elements, optionally a stainless steel alloy including gammagenic elements and displacing both the laser beam and the arc welding torch in a welding direction, and wherein in the welding direction, the arc welding torch is positioned in front of the laser beam.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: November 12, 2019
    Assignees: AUTOTECH ENGINEERING A.I.E., GESTAMP HARDTECH AB
    Inventors: Håkan Andersson, Paul Janiak, Niklas Malmberg
  • Patent number: 10442003
    Abstract: The present disclosure provides three-dimensional (3D) printing methods, apparatuses, systems and/or software to form one or more three-dimensional objects, some of which may be complex. The three-dimensional objects may be formed by three-dimensional printing using one or more methodologies. In some embodiments, the three-dimensional object may comprise an overhang portion, such as a cavity ceiling, with diminished deformation and/or auxiliary support structures.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: October 15, 2019
    Assignee: Velo3D, Inc.
    Inventors: Kimon Symeonidis, Rueben Joseph Mendelsberg, Tasso Lappas, Nina Cathryn Bordeaux, Gregory Ferguson Brown, Peter Robert Stone, Benyamin Buller, Brian Charles Spink, Zachary Ryan Murphree
  • 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: 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: 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: 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