With Condition Responsive Control Of The Welding Process Patents (Class 219/61.5)
  • Patent number: 9476203
    Abstract: Column/beam forming apparatus including an initial channel-forming station forming received strips of sheet metal alternately into intermediate upwardly and intermediate downwardly opening channel. A final channel-forming station positioned to receive intermediate upwardly and intermediate downwardly opening channels and complete bending the received intermediate channels into upwardly opening and downwardly opening C-shaped channels. Each downwardly opening C-shaped channel being positioned in an aligned overlying relationship to a mating upwardly opening C-shaped channel upon exiting the final channel-forming station. A channel-welding station positioned to weld the upwardly opening C-shaped channel and downwardly opening C-shaped channel in the aligned overlying position along an interface between adjacent surfaces of the upwardly opening C-shaped channel and downwardly opening C-shaped channel.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: October 25, 2016
    Inventor: John Powers, III
  • Patent number: 9012802
    Abstract: An arc welder including an integrated monitor is disclosed. The monitor is capable of monitoring variables during a welding process and weighting the variables accordingly, quantifying overall quality of a weld, obtaining and using data indicative of a good weld, improving production and quality control for an automated welding process, teaching proper welding techniques, identifying cost savings for a welding process, and deriving optimal welding settings to be used as pre-sets for different welding processes or applications.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: April 21, 2015
    Assignee: Lincoln Global, Inc.
    Inventors: Joseph A. Daniel, Bruce J. Chantry
  • Publication number: 20150090697
    Abstract: An electric resistance welding operation management device 100 manages a welding operation during manufacture of electric resistance welded steel pipe, in which heat is input to a steel plate 1, that is being conveyed along a specific conveyance direction and formed into a circular tube shape while pressing side faces of the metal plate 1 with a pair of squeeze rolls 2a, 2b, to weld together two circumferential direction edge portions 11a, 11b of the metal plate 1 converging in a V-shape. The electric resistance welding operation management device 100 includes an image input means that inputs plural images, successively captured over 3 sec and each including a Vee convergence region of the steel plate 1.
    Type: Application
    Filed: April 5, 2013
    Publication date: April 2, 2015
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Noboru Hasegawa, Toshisuke Fukami, Nobuo Mizuhashi, Hideki Hamatani, Yoshifumi Karube, Takao Miura, Kimiharu Tanaka, Kazuto Yamamoto
  • Patent number: 8987628
    Abstract: An arc welder including an integrated monitor is disclosed. The monitor is capable of monitoring variables during a welding process and weighting the variables accordingly, quantifying overall quality of a weld, obtaining and using data indicative of a good weld, improving production and quality control for an automated welding process, teaching proper welding techniques, identifying cost savings for a welding process, and deriving optimal welding settings to be used as pre-sets for different welding processes or applications.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: March 24, 2015
    Assignee: Lincoln Global, Inc.
    Inventors: Joseph A. Daniel, Bruce J. Chantry
  • Patent number: 8987637
    Abstract: The welding torch performs oscillation of the torch head while moving the torch head along the circular weld path, under control of signals generated by a controller. The operator of the welding torch preferably has control over the amplitude of the oscillation, how fast it moves back and forth, and how long it remains at each turning point of the oscillation (dwell time).
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: March 24, 2015
    Assignee: The Reliable Automatic Sprinkler Co, Inc.
    Inventor: Ryan Messina
  • Publication number: 20150076117
    Abstract: The invention relates to a method and a device for longitudinal seam welding of profiled tubes on a tube welding system which is connected to a system computer for process control, and to which a slotted tube (5) formed directly in line from a metal strip in a roll forming mill, or a slotted tube shaped from at least one sheet metal panel is supplied, in particular, for welding the longitudinal seam or the longitudinal seams, wherein the tube welding machine is equipped with a means (12) for measuring the temperature of the welding point which is effective at the narrowest location and is occupied by the metal edges of the slotted tube pressed together by means of rollers (8) to form a gap with a tapering V shape.
    Type: Application
    Filed: April 17, 2013
    Publication date: March 19, 2015
    Inventors: Ruediger Neugebauer, Tobias Schmidt
  • Publication number: 20140346163
    Abstract: The present invention is directed to a system for welding together segments of a pipeline. The system includes an external alignment mechanism for externally supporting and manipulating the orientation of pipe segments in order to align relative segments. The system also includes an internal welding mechanism for applying a weld to an interior face joint of the two abutted pipe segments. The internal welding mechanism including a torch for applying a weld, a laser for tracking the weld profile and guiding an articulating head of the torch, and a camera for visually inspecting the weld after the weld is applied.
    Type: Application
    Filed: May 8, 2014
    Publication date: November 27, 2014
    Inventors: Shankar Rajagopalan, Siddharth Mallick, Jose C. Bouche
  • Patent number: 8884177
    Abstract: An arc welding system and methods. The system is capable of monitoring variables during a welding process, according to wave shape states, and weighting the variables accordingly, detecting defects of a weld, diagnosing possible causes of the defects, quantifying overall quality of a weld, obtaining and using data indicative of a good weld, improving production and quality control for an automated welding process, teaching proper welding techniques, identifying cost savings for a welding process, and deriving optimal welding settings to be used as pre-sets for different welding processes or applications.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: November 11, 2014
    Assignee: Lincoln Global, Inc.
    Inventor: Joseph A. Daniel
  • Patent number: 8642924
    Abstract: A system and method for welding arc termination are provided. In an exemplary embodiment, a method for controlling a welding process includes receiving a signal indicating an operator intention to terminate a welding arc and stopping advance of a welding wire in response to the signal. The method also includes reducing a conduction angle for switching of solid state switches that generate welding power in response to the signal.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: February 4, 2014
    Assignee: Illinois Tool Works Inc.
    Inventor: Craig Steven Knoener
  • Patent number: 8569646
    Abstract: An arc welder including an integrated monitor is disclosed. The monitor is capable of monitoring variables during a welding process and weighting the variables accordingly, quantifying overall quality of a weld, obtaining and using data indicative of a good weld, improving production and quality control for an automated welding process, teaching proper welding techniques, identifying cost savings for a welding process, and deriving optimal welding settings to be used as pre-sets for different welding processes or applications.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: October 29, 2013
    Assignee: Lincoln Global, Inc.
    Inventors: Joseph A. Daniel, Bruce J. Chantry
  • Patent number: 8558133
    Abstract: A method for setting the operating frequency of a forge welding machine for a preferred width of the of the heat affected zone during a forge weld. A computer program executes a self-tuning routine to determine the operating frequency in response to an inputted value of a preferred width of the heat affected zone. The operating power setting for the forge welding machine may also be determined in combination with the operating frequency in response to an inputted value of weld temperature.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: October 15, 2013
    Assignee: Thermatool Corp.
    Inventors: Paul F. Scott, Michael A. Nallen, Gary A. Doyon, John H. Mortimer, Oleg S. Fishman
  • Patent number: 8450644
    Abstract: A system and method for providing multi-mode control of an ultrasonic welding system. In one embodiment, the control modes include the energy of the weld, the time of the welding process and the compression displacement of the parts being welded during the welding process. The method includes providing thresholds for each of the modes, and terminating the welding process after the threshold for each mode has been reached, the threshold for more than one mode has been reached or the threshold for one of the modes has been reached. The welding control can be either open-loop or closed-loop, where the open-loop process provides the mode thresholds and once one or more of those thresholds is reached the welding process is terminated. The closed-loop control provides feedback of the weld energy and/or the compression displacement so that the weld power and/or weld pressure can be increased or decreased accordingly.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: May 28, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Jason C. H. Tang, Wayne W. Cai
  • Patent number: 8278583
    Abstract: In order to evaluate the welding current for the resistance seam welding of an overlap seam of container bodies, a welding with changing welding current intensity is carried out for a container body of the production series, resulting in a changing welding of the seam, ranging from the welding with a too high temperature to the welding with a too low temperature. The electric energy for this welding is determined several times during this welding and/or the temperature of the weld seam is determined several times and the welding current intensity is determined at which the welding of the individual container body is too cold and the welding current intensity at which the welding is too hot. This determination is based on the determined electric energy values and/or on the determined temperature values and based on this determination a preferred range for the welding current intensity within these limits of too hot and too cold is determined.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: October 2, 2012
    Assignee: Soudronic AG
    Inventors: Willi Mueller, Daniel Dietrich
  • Patent number: 8247728
    Abstract: An apparatus and method of bonding refractory metal alloys together by use of a modified clamping arrangement.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: August 21, 2012
    Assignee: Icon Medical Corp.
    Inventors: Raymond W. Buckman, Jr., Udayan Patel
  • Publication number: 20120152905
    Abstract: This disclosure describes a method and apparatus for controlling the temperature of a welding zone for welding together pipe sections. The temperature is controlled by a flow of inert gas through the pipes. The inert gas flow is cooled and acts as a heat sink to remove heat from the weld zone thereby controlling the weld zone temperature.
    Type: Application
    Filed: December 16, 2010
    Publication date: June 21, 2012
    Applicant: Air Liquide Industrial U.S. LP
    Inventor: Tharron Scott Laymon
  • Publication number: 20110127238
    Abstract: The present invention relates generally to a system and method for welding pipes and controlling the flow of purge gas through the pipes. Purge gas may be remotely controlled by a portable signal input unit.
    Type: Application
    Filed: November 23, 2010
    Publication date: June 2, 2011
    Applicant: KINETIC SYSTEMS, INC.
    Inventor: William Stewart Johnson
  • Patent number: 7683288
    Abstract: A system and method for computing the parameters of a forge welding machine for the forge welding of one or more materials is provided. A computer program executes a self-tuning routine to compute the operating frequency and operating power setting for the forge welding machine in response to an inputted width of the heat affected zone and an inputted weld temperature.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: March 23, 2010
    Assignee: Thermatool Corp.
    Inventors: Paul F. Scott, Michael A. Nallen, Gary A. Doyon, John H. Mortimer, Oleg S. Fishman
  • Publication number: 20100059484
    Abstract: A method for manufacturing an electric resistance steel pipe having a good toughness at a welded portion is provided, the method being capable of stably manufacturing an electric resistance welded steel pipe having a desirable toughness at a welded portion although a steel strip serving as a base material has a dimensional variation. Groove shapes and are applied to edges and of an open pipe, an edge shape monitor continuously captures images of the edges and immediately before electric resistance welding, and the captured images are input to an arithmetic processing unit for image processing.
    Type: Application
    Filed: February 8, 2008
    Publication date: March 11, 2010
    Applicant: JFE STEEL CORPORATION
    Inventors: Tomohiro Inoue, Shigeto Sakashita, Daijiro Yuasa, Hiroyasu Yokoyama, Kazuhito Kenmochi, Yukinori Iizuka
  • Patent number: 7560662
    Abstract: An apparatus and/or process for applying a weld overlay to a nozzle or piping spool of complex configuration is disclosed. In an exemplary embodiment, the welding apparatus comprises a mounting assembly having a plurality of magnetic foot pads, a tension support rod attached at one end to one of the magnetic foot pads, an upper attachment pad at the opposite end of the rod, and a bottom attachment pad attached to at least one other magnetic foot pad; a travel guide, the travel guide attached to the upper attachment pad at one end and the bottom attachment pad at the other end; and a head assembly attached to the travel guide, the head assembly having: i) a track ring assembly having an inner ring and an outer ring, ii.) at least two opposed weld heads attached to the inner track ring, iii.) at least one movable wire feed drive mechanism on the track ring, and iv.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: July 14, 2009
    Assignee: Welding Services, Inc.
    Inventors: Pedro Amador, James Sculley, Jeffrey Madill, Jack Stoner, Dixon Parker, Casey Power
  • Patent number: 7520043
    Abstract: An annular facing is machined in an inside surface of the spherical wall around the periphery of a zone where the wall has a bore for securing the tube passing therethrough. A first welding material is deposited in the facing, and the bore is made by drilling through a portion of the spherical wall that is surrounded by the facing. The tube is engaged tightly in the bore, and a second welding material is deposited in the facing at the periphery of the tube in order to weld the tube to the first welding material. At least one of the operations of depositing the first and second welding materials in the facing is performed automatically by causing a welding torch to turn around the axis of the bore while moving the torch in a direction that is parallel to the axis of the bore and while causing it to pivot about an axis that is orthogonal to the axis of the bore while rotation is taking place.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: April 21, 2009
    Assignee: Framatome ANP
    Inventors: Bernard Bon, Patrick Poret
  • Patent number: 6941826
    Abstract: A method for detecting abrasion of both a moving side electrode (2) and a fixing side electrode (3) of a stationary type welding gun in which the moving side electrode (2) and the fixing side electrode (3) opposed to the moving side electrode (2) are provided and a workpiece (W) held by a robot (R) is to be welded, wherein reference positions of electrode ends of both of the electrodes (2) and (3) are read by an electrode end detecting device (7) attached to the robot (R), positions of the electrode ends are then detected by the electrode end detecting device (7) in a middle of welding, and amounts of abrasion of both of the electrodes (2) and (3) are calculated from a difference between the reference positions.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: September 13, 2005
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Yasutaka Mitani, Hiromi Ohba
  • Patent number: 6911632
    Abstract: A method for controlling the edges (7, 7?) of a foil strip guided in a shaping funnel of a device producing tubular bodies from the foil strip by an overlapping weld seam using a guide wedge, the strip being then welded. According to the invention, after welding, the method consists in using a linear infrared sensor for measuring and evaluating a temperature profile perpendicular to the overlapping weld seam. In case of variation relative to the specific real profile, a signal is automatically transmitted to rotate the shaping funnel with the guide wedge, the welding being produced by the high frequency (HF) and the temperature profile being measured directly after welding.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: June 28, 2005
    Assignee: Aisapack Holding SA
    Inventor: Gerhard Keller