Welding Patents (Class 219/136)
-
Patent number: 7772524Abstract: A system that facilitates dynamic configuration of a welding system with respect to a sensor comprises a processing unit associated with the welding system. A configuration component facilitates configuring the welding system with respect to the sensor upon determining that the sensor is coupled to a local bus associated with the processing unit. A remote access component can facilitate remotely accessing the welding system, the configuration of the welding system alterable by way of the remote access component.Type: GrantFiled: January 21, 2005Date of Patent: August 10, 2010Assignee: Lincoln Global, Inc.Inventors: Edward D. Hillen, Stephen M. Kainec
-
Publication number: 20100193490Abstract: An inert gas welding torch comprising; a torch body, a collet, an electrode, a nozzle, the nozzle having an upper and lower end, the upper end of the nozzle being connected to the torch body, the collet connected to the torch body and the electrode connected to the collet with the electrode extending through and out the lower end of the nozzle, a path for inert gas starting from a gas supply line and passing through the torch body to the upper end of the nozzle, the gas then passing through at least three gas portals with the gas portals having an inlet and an outlet, the inlet being located at the upper end of the nozzle and the outlet toward the lower end of the nozzle, the portals having substantially uniform dimensions from the inlet to the outlet, wherein the length of the gas portal is at least as long as the longest line that can be drawn across the area of the gas portal inlet.Type: ApplicationFiled: February 2, 2009Publication date: August 5, 2010Inventor: William Louis Arter
-
Patent number: 7767933Abstract: Methods and systems for clearing short circuits during a MIG welding process are disclosed. A method may include detecting a short circuit and increasing output current of a power source at a first ramp rate to clear the short circuit. The method further includes increasing output current at a second ramp rate after the output current reaches a threshold. Power sources and systems implementing the method are also provided.Type: GrantFiled: December 9, 2005Date of Patent: August 3, 2010Assignee: Illinois Tool Works Inc.Inventors: Tim A. Matus, Bernard J. Vogel, Bruce Albrecht
-
Patent number: 7767940Abstract: A device for at least partially drying the outer coating on a stick electrode in the form of a generally straight center welding wire of magnetic metal with an axis and surrounded by an extruded pliant mass with a settable binder. The device comprises a conveyor to transport a succession of the electrodes along a given path, a multi-turn induction heating coil extending along the path and spaced from the moving electrodes and a power source for passing an alternating current through the coil to induce an alternating voltage difference in the wire to cause AC current flow in the wire to heat the wire.Type: GrantFiled: September 29, 2005Date of Patent: August 3, 2010Assignee: Lincoln Global, Inc.Inventor: Gregory A. Gerth
-
Publication number: 20100180711Abstract: A robotic end effector system and method having a plurality of end effectors which are selectively suitable for particular applications on a workpiece. The end effectors include a resident controller adapted to execute tasks specific to the end effector and are rapidly attachable and removable from the robot for easy change over to different workpieces.Type: ApplicationFiled: January 19, 2010Publication date: July 22, 2010Applicant: COMAU, INC.Inventors: Velibor Kilibarda, Joseph Cyrek, David Reid
-
Publication number: 20100176105Abstract: A superimposed voltage waveform with a predetermined cycle and amplitude is superimposed on a commanded voltage waveform for a second predetermined time after a first predetermined time elapses within an arcing period in which an arc is produced. The predetermined cycle of the superimposed voltage waveform is shorter than a short-circuit cycle and longer than a control cycle of a welding power supply unit. This suppresses a growth of a weld droplet by being pushed up toward a consumable electrode and suppresses an excessive growth of the droplet over an entire range from a low current range, characterized by frequent short-circuits, to a medium to high current range where short-circuits are less frequent. The droplet is also smoothly transferred to the weld pool in addition to preventing excessive droplet growth. This reduces the generation of spatter, giving a flatter bead appearance.Type: ApplicationFiled: August 3, 2007Publication date: July 15, 2010Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Toshinori Hongu, Kazunori Matsumoto, Kimiya Satou, Yoshiaki Tanaka
-
Publication number: 20100176107Abstract: A system and method for welding spliced vertical box columns with an electroslag welding system. The system includes a welding fixture having opposing, paired and positionally adjustable welding shoes, run-off tabs, and sumps affixed at the junction of box columns to be spliced. A distributed control electroslag welding system, articulating boom, welding torch and consumable guide tube oscillator feed provide molten flux within the shoes filling from the sump to the run-off tab.Type: ApplicationFiled: January 12, 2009Publication date: July 15, 2010Inventor: WILLIAM L. BONG
-
Publication number: 20100176106Abstract: This invention relates to a welding carriage operable to drive across a surface of a work piece having a joint to be welded. The welding carriage comprises a number of wheels, where each wheel is pivotal around an axle and where each wheel is a magnetic wheel; the welding carriage further comprises means for supporting a welding device wherein at least one of the wheels can be flexed inwardly or outwardly so that the welding carriage can travel over curved surfaces. The welding carriage can travel over magnetizable surfaces having any direction, e.g. orientation in space. The welding carriage can carry a laser sensor arrangement arranged to detect the position as well as the direction of a joint to be welded, so that the welding carriage is applicable for performing fully automated welding.Type: ApplicationFiled: February 6, 2007Publication date: July 15, 2010Inventors: Kim Hardam Christensen, Ulf Larsen, Henrik Sorensen
-
Patent number: 7745757Abstract: A welding apparatus is provided for carrying a welding gun across or past a surface for making welds. The apparatus may include one or more rolling components, such as wheels for example, that do not substantially plastically deform as a result of contacting or being in close proximity to recently completed welds or preheated joints and provide adequate traction to move the apparatus across or past the surface. A portion of the contact surface of the rolling component may be configured with a given surface roughness to provide sufficient traction.Type: GrantFiled: September 11, 2006Date of Patent: June 29, 2010Assignee: Lincoln Global, Inc.Inventors: Edward A. Enyedy, Jeff Klein
-
Publication number: 20100147816Abstract: A portable engine driven welder is provided that has a case enclosing an internal combustion engine and a welding generator, and a running gear that is attached to the case. The running gear includes a pair of rails and a pair of leading wheels connected to the rails toward the back wall of the case. A pair of trailing wheels is connected to the rails toward the front wall of the case. The leading and trailing wheels have different resiliency values with the leading wheels being more resilient or flexible than the trailing wheels. This allows the leading wheels to act like a suspension system for the portable engine driven welder and running gear by soaking up or absorbing impacts instead of transmitting them therethrough so as to reduce exposure of the portable engine driven welder to such impacts.Type: ApplicationFiled: October 19, 2009Publication date: June 17, 2010Inventor: John P. Laitala
-
Publication number: 20100147817Abstract: Embodiments of an enclosed welder that includes a recess disposed at a depth in a rear panel of the enclosure are provided. The recess may include at least one of an engine air filter, a blower housing, and a recoil start. The depth at which the recess is set back from the rear panel may be such that the engine air filter, the blower housing, and the recoil start each do not extend outward beyond the rear panel. A first air source may be configured to enter the enclosed welder via the air filter and combust fuel within an engine. A second air source may further be configured to enter the welder via the blower housing and cool the engine.Type: ApplicationFiled: November 30, 2009Publication date: June 17, 2010Applicant: Illinois Tool Works Inc.Inventors: John Patrick Laitala, Joel Raymond Ort
-
Publication number: 20100140242Abstract: A contact fitting for a welding apparatus includes a housing, and first contact device, a second contact device, and a third contact device arranged between the first and second contact devices. The third contact device is movable relative to the first and second contact devices. The first contact device has an elongated form, is fixedly arranged in the housing, and extends from a first end, which is arranged between first and second ends of the housing, to a second end. The second contact device has an elongated form, is suspended spring-loaded to the housing, and extends from a first end, which is arranged between the first and second ends of the housing, to a second end.Type: ApplicationFiled: March 4, 2008Publication date: June 10, 2010Inventors: Hannes Raudsepp, Bo Jansson
-
Publication number: 20100133240Abstract: A method of consumable electrode type gas shield arc welding characterized in that a shield gas consisting of an inert gas is fed toward a consumable electrode and an addition gas consisting of a mixture of oxidizing gas and inert gas toward an outer edge of welding pool. Further, there is provided a welding torch for use in the method. Thus, in the welding of steel material in accordance with GMA welding technique, the dissolved oxygen concentration of the weld metal can be reduced to 100 ppm or less, and while maintaining arc stability, desirable bead formation can be attained.Type: ApplicationFiled: August 10, 2006Publication date: June 3, 2010Inventors: Makoto Takahashi, Toyoyuki Sato, Terumi Nakamura, Kazuo Hiraoka
-
Publication number: 20100126976Abstract: A welding device includes a welding torch, a memory, a power supply, an input section, a selector, and a controller. The welding torch includes a welding tip having a feeder for supplying electric power to a welding wire. The memory stores a plurality of welding conditions in which a feeder-work-piece to be welded distance is associated with at least one a length of the wire supplied per unit time, a weight of the wire supplied per unit time, and a set electric current. The power supply supplies electric power between the wire and the work-piece. The input section receives an input of a set value of a feeder-work-piece distance. The selector selects one of the welding conditions stored in the memory based on the set value. The controller controls the power supply based on the welding condition selected by the selector.Type: ApplicationFiled: July 30, 2007Publication date: May 27, 2010Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Atsuhiro Kawamoto, Yasushi Mukai, Junji Fujiwara, Masaru Kowa
-
Publication number: 20100116802Abstract: A self-shielding welding electrode and a method of making the same are provided. The self-shielding welding electrode contains lithium aluminate in either the flux or the electrode portion of the electrode.Type: ApplicationFiled: November 7, 2008Publication date: May 13, 2010Applicant: LINCOLN GLOBAL, INC.Inventor: James M. Keegan
-
Patent number: 7714252Abstract: A duty cycle controller having a processor configured to control a welding-type apparatus is disclosed. In one embodiment, the processor may be configured to control the welding-type apparatus according to a variable maximum duty cycle to substantially delay entry into a thermal shutdown mode of the welding-type apparatus based on at least one operating condition. Various additional devices and methods are also disclosed.Type: GrantFiled: December 7, 2004Date of Patent: May 11, 2010Assignee: Illinois Tool Works Inc.Inventors: Bruce A. Casner, Mark Ulrich
-
Publication number: 20100108655Abstract: The invention relates to a method for permanently interconnecting components from a heat-meltable metal material, using a robot-controlled welding unit for carrying out a hybrid welding process. According to the method, a high performance metal active gas welding process (high performance MAG) is carried out. A component (8) carrying out the high performance MAG welding process is carried along by the robot-controlled welding unit (2) to carry out the hybrid welding process, the GSMAW torch (3) which contributes to the hybrid welding process being guided so as to be dragged by the welding unit.Type: ApplicationFiled: May 6, 2008Publication date: May 6, 2010Inventor: Werner Knipper
-
Publication number: 20100108646Abstract: Methods for arc welding unalloyed or low-alloy steels with consumable electrode under protective gas are suggested, in which the protective gas is a mixture comprising at least helium and an active gas as well as a further inert gas. In the general case, the proportion of the active gas in the total volume of the protective gas is to be in the range from more than 0.5% to approximately 1,5% and the proportion of helium in the total volume of the protective gas is to be more than 30%. In case an electrode having a lowered or medium Si content of approximately 0.2% to approximately 0.4% is used, the proportion of the active gas in the total volume of the protective gas is to be approximately 1% to approximately 5%. If an electrode with a low Si content of approximately 0.05% to approximately 0.1% is used, the proportion of the active gas in the total volume of the protective gas is to be approximately 3% to approximately 10%.Type: ApplicationFiled: October 30, 2009Publication date: May 6, 2010Applicant: Linde AGInventor: Christoph Matz
-
Publication number: 20100102048Abstract: Embodiments of methods and apparatus for welding are provided. According to one embodiment, an apparatus may include a torch body supporting an electrode at least partially extending from the torch body, the electrode having a longitudinal central axis therethrough. The apparatus may also include a heat transfer block spaced apart from the electrode and at least partially intersecting the longitudinal central axis. An electric arc may be generated between the electrode and the heat transfer block.Type: ApplicationFiled: October 24, 2008Publication date: April 29, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Sujith Sathian, Gene Arthur Murphy, JR.
-
Publication number: 20100102047Abstract: One embodiment of a welding rod expander assembly for expanding a welding rod to a remote location. The welding rod expander assembly may include a first attachment member, a second attachment member, at least one elongated member and a welding rod holder. The second attachment member may be pivotally carried by the first attachment member. Further the at least one elongated member may have an external threaded end portion and a connecting end portion. The welding rod holder may be carried by the second attachment member. The welding rod holder may include a holding unit carried by the second internal threaded portion. The holding unit may be capable of receiving the welding rod. The welding rod holder may further include a clamping unit disposed on the second internal threaded portion. Further, the welding rod secured in the holding unit may be capable of expanding to the remote location.Type: ApplicationFiled: October 21, 2009Publication date: April 29, 2010Inventors: Patrick Malloy, Norma J. Malloy
-
Publication number: 20100089889Abstract: A method and apparatus for welding includes one or more of a welding type power source, a feedback circuit, a wire feeder and a controller. The controller preferably has an eta control circuit responsive to the feedback.Type: ApplicationFiled: October 13, 2008Publication date: April 15, 2010Applicant: Illinois Tool Works Inc.Inventor: Richard M. Hutchison
-
Publication number: 20100089888Abstract: A method for welding an edge of a first member to a side surface of a second member is provided. The first member and the second member are joined to one another at a joint. The method includes beveling an edge of the first member. The method also includes positioning the edge of the first member proximate the side surface of the second member. The method further includes supplying welding material via a welding wire along the edge of the first member to create a joint between the first and second members. Supplying welding material includes controlling a feed rate of the welding wire, such that a weld bead formed at the joint defines a concave cross-section.Type: ApplicationFiled: October 10, 2008Publication date: April 15, 2010Inventors: James Anthony Forck, Alexei Peter Yelistratov, Mark Wayne Hammerton
-
Publication number: 20100084387Abstract: An engine driven welding machine that includes a frame with lower tubular portions that extend across the ends of the frame. The lower tubular portions make it easier to lift the engine driven welding machine onto an elevated surface, such as the bed of a truck. The frame may include two different lifting portions that extend across the same side or end of the frame at different levels. For example, two tubular portions of the frame may extend generally horizontally across the same side or end of the frame to provide two lifting areas at different levels of the frame.Type: ApplicationFiled: October 3, 2008Publication date: April 8, 2010Applicant: THE LINCOLN ELECTRIC COMPANYInventors: David Joseph Bender, Darren Stockton, Rich Lesiacsek
-
Patent number: 7687741Abstract: Systems and methods are disclosed that facilitate inducing one or more actions, such as generation of a shift report data related to construction device(s), via detection of specified triggering events. The system comprises a triggering component that determines whether a triggering event has occurred a control component that initiates an action in response to the triggering event. Triggering events can comprise specific times of day as determined by a real-time clock that can be associated with a construction/fabrication device, such as a welder. Additionally, actions responsive to triggering events can be tagged for human approval prior to initiation in order to provide system flexibility.Type: GrantFiled: February 3, 2005Date of Patent: March 30, 2010Assignee: Lincoln Global, Inc.Inventors: Stephen M. Kainec, Edward D. Hillen
-
Publication number: 20100072184Abstract: A robot cell comprises a support having a top surface within a plane and configured to rotate about a central axis substantially normal to the plane and a plurality of welding tables including a first welding table and a second welding table. The first welding table is operably connected to the support and configured to rotate about a first axis substantially parallel to the plane and about a second axis substantially normal to the plane. The first welding table is configured such that the second axis remains substantially normal to the plane while the first welding table rotates about the first axis. The second welding table is operably connected to the support and configured to rotate about a third axis substantially parallel to the plane and about a fourth axis substantially normal to the plane. The second welding table is configured such that the fourth axis remains substantially' normal to the plane while the second welding table rotates about the third axis.Type: ApplicationFiled: September 18, 2009Publication date: March 25, 2010Applicant: Lincoln Global, Inc.Inventor: David E. Osicki
-
Publication number: 20100059492Abstract: A welding control unit has a common power section for detecting contact of a welding material and for welding. A material contact detector for detecting contact of the welding material and a workpiece, and a power controller are built in the welding control unit. This stabilizes a bead shape in starting welding. The number of components can also be reduced, resulting in more inexpensive equipment. In addition, only a space for installing the welding control unit is needed without any additional space.Type: ApplicationFiled: July 20, 2007Publication date: March 11, 2010Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Atsuhiro Kawamoto, Kei Aimi, Yasushi Mukai, Yukinori Hirota
-
Publication number: 20100059485Abstract: A method and apparatus for MIG-MIG welding includes at least first and second sources (104,114) of wire, and first and second sources of power (102,112). The first source of wire provides a first wire (106) to a main arc between the first wire (106) and a workpiece (110). The first source of power (102) provides MIG power to a first current path including the first wire (106) and the workpiece (110). The second source of wire provides a second wire to a filler arc between the first wire (106) and the second wire (116). The second source of power (112) provides MIG power to a second current path including the first wire (106) and the second wire (116).Type: ApplicationFiled: December 19, 2005Publication date: March 11, 2010Applicant: ILLINOIS TOOL WORK INC.Inventors: Richard M. Hutchison, Joseph K. Fink
-
Publication number: 20100038345Abstract: A consumable electrode gas shield arc welding torch (20) includes a torch body (21), a tip body (22) mounted to a front end of the torch body, a tip holder (23) mounted to a front end of the tip body, a spring (26) provided in the tip body (22) in contact with the front end of the torch body (21), a pressing shaft (27) provided in the tip body (22) in contact with a front end of the spring 26) and a power feed tip (28) pressed by the pressing shaft (27) and the tip holder (23). The tip (28) includes a side surface having a projection contacting with a base end (23a) of the holder (23), with a space (29) defined between an inner surface of the holder (23) and a front end (28a) of the tip (28) when the front end (28a) of the tip (28) is inserted into the holder (23).Type: ApplicationFiled: August 10, 2007Publication date: February 18, 2010Applicant: DAIHEN CORPORATIONInventor: Masaru Nishimura
-
Publication number: 20100032420Abstract: An arc welding robot having a welding wire conduit which has a bend radius above a certain level and arranged so that disadvantageous stress is not applied to the conduit by the motion of the robot arm. A conduit for a welding wire is inserted through a hole of a robot pedestal from the rear side of the robot, is supported by a second support member arranged on the pedestal, extends near the front side of a rotating body of the robot, and is supported by a first support member on the upper part of the rotating body while having a required minimum bend radius. The conduit after passing through the first support member is introduced to the rear side of the upper arm and is connected to a connector at the rear side of a wire feeder while having the required minimum radius, whereby the conduit presents a generally S-shape.Type: ApplicationFiled: June 22, 2009Publication date: February 11, 2010Applicant: FANUC LTDInventors: Toshihiko Inoue, Kazutaka Nakayama, Takatoshi Iwayama
-
Patent number: 7650964Abstract: An arrangement of parts having a first part in the form of sheet metal which is in contact with the second part along an edge and is fixedly connected to the second part via at least one weld. To reduce stress peaks at the ends of welds, the first part has a slot in a section adjacent to the respective end of the weld, the slot beginning at the edge and extending to its end with a curved profile a curve bent by at least 180° up to its end.Type: GrantFiled: April 2, 2007Date of Patent: January 26, 2010Assignee: J. Eberspaecher GmbH & Co. KGInventor: Arnulf Spieth
-
Publication number: 20100012637Abstract: A gooseneck locking mechanism for a robotic GMAW torch having a torch body and a gooseneck includes a connector receiver disposed in the torch body. The connector receiver includes longitudinal ends and a passageway extending between the longitudinal ends. An indexing feature is disposed in the passageway. An elongated connector is mountable on a proximal end of the gooseneck. The connector includes a cooperable indexing feature. The locking mechanism further includes a detent for joining the connector receiver and the elongated connector. The indexing features align the gooseneck relative to the torch body, and the detent secures the connector in the connector receiver for quick release. The locking mechanism may include a plurality of electrical contacts in the connector receiver that are engageable with the connector to provide flow of electrical current through the connector receiver to the gooseneck.Type: ApplicationFiled: June 5, 2009Publication date: January 21, 2010Applicant: ILLINOIS TOOL WORKS INC.Inventor: Thomas Jaeger
-
Publication number: 20090321402Abstract: A method and a system for forming a root pass weld for a root pipe joint. A substantially periodic electric welding waveform is generated and a series of electric arc pulses are generated between an advancing welding electrode and a root pipe joint in response to the electric welding waveform. The electric welding waveform includes a base cycle having a background current phase providing a background current level, a peak current phase providing a peak current level, a tail-out current phase providing a decreasing tail-out current level, and at least one heat-increasing current pulse during the background current phase providing a heat-increasing current level being above the background current level.Type: ApplicationFiled: March 31, 2009Publication date: December 31, 2009Applicants: LINCOLN GLOBAL, INC., J. RAY MCDERMOTT, S.A.Inventors: Thomas Edward Doyle, Clyde David Noel, Terry Louis Breaux, Steven R. Peters
-
Publication number: 20090314361Abstract: The present invention relates to a compressor, a method of welding a fluid tubing to a compressor housing, and a fluid-transport tubing, particularly applicable to an airtight compressor, which provide for the replacement of the brazing step and the direct welding of the fluid-passage tubing to the compressor housing. The airtight compressor comprises a housing (5) and a fluid-transport tubing (9), the fluid-transport tubing passing through the housing (5) through a passage orifice (10), the fluid-transport tubing (9) comprising weldable coupling means (11), the weidable coupling means (110) being configured from a widening in the diameter of the fluid-transport tubing (9), the widening in the diameter having a dimension larger than the diameter of the passage orifice (10) and being configured along its length, the weldable means (11) being welded directly close to a border (12?) of the passage orifice (10).Type: ApplicationFiled: June 1, 2007Publication date: December 24, 2009Inventor: Alberto Jose Silveira
-
Publication number: 20090314756Abstract: The copper cladding normally applied to the surfaces of a submerged arc welding wire for preventing weld gun contact tip abrasive wear is replaced with a solid lubricant. This eliminates copper contamination of the weld from the copper cladding while preserving the useful life of the contact tip.Type: ApplicationFiled: June 18, 2008Publication date: December 24, 2009Applicant: LINCOLN GLOBAL, INC.Inventors: J. Ben Schaeffer, Boris Kahn
-
Publication number: 20090308855Abstract: A tandem arc welding device in which the welding conditions and a program describing contents of operation are treated as independent to each other. It handles the welding conditions altogether simply as those parameters for the fore-going welding and those parameters for the hind-going welding. By so doing, a program can be produced without taking which of the two welders will become fore-going into consideration. Furthermore, a program and welding conditions thus provided offer superior re-usability and reproducibility to the tandem arc welding.Type: ApplicationFiled: February 22, 2007Publication date: December 17, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventor: Kazumasa Yoshima
-
Publication number: 20090302015Abstract: The invention relates to a remote controller for a welding device (1) with a housing, a control unit (33) and several contact elements (27), wherein one contact element (27) is comprised of a workpiece contact (30) for establishing a connection with a workpiece (16), and wherein at least two further contact elements are comprised of electrode contacts (28, 32) for establishing a connection with an electrode (13) of the welding device (1), wherein the one electrode contact (28, 32) is designed for increasing the value of a welding parameter and the second electrode contact (28) is designed for reducing the same, the value of the welding parameter thus being changeable by contacting the electrode contacts (28, 32) with the electrode (13) of the welding device.Type: ApplicationFiled: March 21, 2007Publication date: December 10, 2009Applicant: FRONIUS INTERNATIONAL GMBHInventors: Thomas Feitzlmaier, Thomas Knoll
-
Publication number: 20090294427Abstract: A contact tip for a welding gun having a central passage for a welding wire moving in a given direction toward a workpiece and receiving a welding signal by contact of the wire with the tip. The passage has an innermost end, an outermost exit end and a length. An opening in the contact tip intersects the passage so a pressure block slidably mounted in the opening is biased toward the wire by a spring around the contact tip urging the block against the wire. This tip is dimensioned and constructed to perform pulse welding by a relatively ductile wire.Type: ApplicationFiled: June 19, 2009Publication date: December 3, 2009Applicant: LINCOLN GLOBAL, INC.Inventors: William T. Matthews, Bryan Nelson
-
Publication number: 20090294426Abstract: A system and method for welding horizontal beams to vertical columns includes a holding assembly, at least four distributed control welding torches, track assemblies for three-dimensional positioning of the welding torches along the weld seam, back-up bars, run-off tabs and sumps affixed at the beam to column welds. Embodiments for single pass and multipass high deposition, submerged arc welds are disclosed.Type: ApplicationFiled: May 29, 2009Publication date: December 3, 2009Inventor: WILLIAM L. BONG
-
Publication number: 20090289043Abstract: A palletized framing system for a motor vehicle body assembly system in which the pallet with a body structure positioned thereon is positioned at the framing station on balls to establish the vertical Z dimension with the pallet free to float on the balls in longitudinal X and lateral Y dimensions, whereafter positioners carried by one of the gates of the framing station engage and lock onto the pallet to precisely position the pallet and the body structure at the framing station at X and Y dimensions corresponding to the precisely attainable X and Y positioning of the gate.Type: ApplicationFiled: October 24, 2008Publication date: November 26, 2009Applicant: Comau, Inc.Inventor: Velibor Kilibarda
-
Publication number: 20090289044Abstract: An arc welding control method carries out weld with a welding current and a welding speed different from those at a steady welding period according to intrinsic resistivity of a weld wire or a base material at a welding start period and a welding end period, so as to obtain a satisfactory welding quality.Type: ApplicationFiled: April 11, 2007Publication date: November 26, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Junji Fujiwara, Atsuhiro Kawamoto, Akira Nakagawa
-
Publication number: 20090236325Abstract: Welding gun with double conductor composed by a torch body (1) and electronic scales (2) to measure the intensity of the sensors (6) located in each conductor (3) and with mechanisms to trigger an alarm when there is an imbalance of the intensities circulating through both conductors. To this end, a microcontroller (5) connected to intensity (6) and temperature (8) sensors in the conductors is used, with indicators of failure or anomaly. The microcontroller (5) program calculates the difference between the magnitudes of both intensity signals and determines which of the two is higher, and, based on predefined parameters, triggers the corresponding alarm signal.Type: ApplicationFiled: March 23, 2006Publication date: September 24, 2009Inventor: José Carlos Moreno Gozalbo
-
Publication number: 20090236326Abstract: A heat pipe cooling system adapted for exemplary use with a gas metal arc welding torch, includes a container enclosing a capillary structure and quantity of working fluid, and functions to accelerate the dissipation of heat energy from a heated zone generated by the torch through the vaporization and condensation of the fluid and the capillary action of the structure.Type: ApplicationFiled: March 19, 2008Publication date: September 24, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventor: Jay Hampton
-
Publication number: 20090230109Abstract: An apparatus and/or process for applying a weld overlay to a nozzle or piping spool of complex configuration is disclosed.Type: ApplicationFiled: May 28, 2009Publication date: September 17, 2009Applicant: WELDING SERVICES, INC.Inventors: Pedro Amador, James Sculley, Jeffrey Madill, Jack Stoner, Dixon Parker, Casey Power
-
Publication number: 20090230107Abstract: A positioning attachment for definition of torch angle and torch to workpiece distance during welding and/or training is provided. The positioning attachment includes one or more legs of equal or varied lengths capped with a tip, which contacts the workpiece, and a body, which may be permanently attached or removably secured to the welding torch nozzle. Certain embodiments may be made of heat resistant metals or ceramic to withstand high temperatures during welding. The positioning attachment may be mounted on the welding torch nozzle or provided as an extension of the contact tip.Type: ApplicationFiled: March 12, 2009Publication date: September 17, 2009Applicant: Illinois Tool Works Inc.Inventor: Jonathan R. Ertmer
-
Publication number: 20090223940Abstract: A bimetallic thin plate jointing element that is jointed, such that a good electric characteristics are maintained, is provided. Thin plate jointing element (10) is formed by welding and jointing positive-electrode terminal (1) and negative-electrode terminal (2) having different melting points, and having flexibility. A plurality of spot-like welding areas (3) formed, for example, by laser welding are provided at overlaid portion (9) of positive-electrode terminal (1) and negative-electrode terminal (2). Welding areas (3) are formed by irradiating laser beams from the side of positive-electrode terminal (1) having a relatively low melting point, and have a cross sectional shape that is tapered from the side of positive-electrode terminal (1) side toward negative-electrode terminal (2).Type: ApplicationFiled: May 10, 2005Publication date: September 10, 2009Applicant: NEC CORPORATIONInventor: Toshizo Hosoya
-
Publication number: 20090218328Abstract: The invention relates to a nozzle (16) for emitting solid carbon dioxide particles. The nozzle (16) comprising an inlet (30) for receiving liquid carbon dioxide, a nozzle aperture (32) from which solid carbon dioxide particles flow from the nozzle (16), a duct extending between the inlet (30) and the nozzle aperture (32), the duct having a convergent section (36) and a divergent section (38), and an axially displaceable valve member (42) located within the duct, the valve member (42) having first and second convergent portions and a substantially cylindrical portion located between the first and second convergent portions. The nozzle (16) finds particular use in apparatus for cooling a heated weld zone in a workpiece.Type: ApplicationFiled: October 23, 2006Publication date: September 3, 2009Inventors: Andrew Neil Johnson, Christopher Peter Rand
-
Publication number: 20090206060Abstract: The present invention relates to a welding torch that includes an electrode (3) that has a longitudinal groove (9) formed therein which guides a welding wire (4) which is fed form a laterally spaced-apart location. The electrode (3) is open and the wire (4) is supported on one side only. In the region of the welding tip, the electrode (3) is elongate and the cross-sectional area is smaller than the area at a position further from the tip. Regions between an outer housing (11) and a main support body (2) define two shielding gas conduits positioned on opposite sides of the body (2), through which gas flows and then combines to form a unitary stream. The body (2) contains cooled regions which are supplied with cooling fluid by a conduit (7) and removed by conduit (8), parts of which are positioned between the shielding gas conduits close to the welding electrode (3).Type: ApplicationFiled: August 22, 2005Publication date: August 20, 2009Applicant: SAIPEM S.P.A.Inventors: Cristian Scaini, Christian Cocca, Andrea Provesi
-
Publication number: 20090188894Abstract: A welding guide nozzle for precision weld positioning of a feedstock material in a welding system. The welding guide nozzle includes a nozzle structure defining a substantially cylindrical holding apparatus that tapers at one end to define a nozzle tip. The holding apparatus and the nozzle tip include concentric bores defined therein. An erosion resistant rod is disposed within the bore defined in the nozzle tip. The erosion resistant rod includes a bore defined therein into with the weld feedstock material is disposed. The erosion resistant material is formed of a high heat resistive material thereby permitting positioning in close proximity to a heat source.Type: ApplicationFiled: January 28, 2008Publication date: July 30, 2009Applicant: Honeywell International Inc.Inventors: Brian G. Baughman, Tom Murray
-
Publication number: 20090179021Abstract: A welding robot in which a translational correction calculating unit corrects a target value of a leading electrode using a translational correction amount, to obtain a primary correction target value. The translational correction amount is a correction amount of a position of the leading electrode in a translational direction in a base coordinate system at a next time. A rotational correction calculating unit calculates a rotation correction amount for correcting displacement of an orientation of a torch around the leading electrode with respect to a actual weld line, and calculates a secondary correction target value resulting from correcting the primary correction target value so that the torch rotates around the leading electrode by the rotation correction amount. The displacement is caused by the correction using the translational correction amount. A manipulator is driven on the basis of the secondary correction target value.Type: ApplicationFiled: December 22, 2008Publication date: July 16, 2009Inventors: Toshihiko Nishimura, Masayuki Shigeyoshi
-
Publication number: 20090139970Abstract: A machine part is guided along a defined movement path over a workpiece surface. The machine part is held at a defined distance from the workpiece surface during this movement. For that purpose, at least one distance sensor is provided that runs ahead of the machine part with a defined lead. A plurality of distance values indicative of a distance between the distance sensor and the workpiece surface are determined along the movement path. A plurality of control values are determined as a function of the distance values. The defined distance is repeatedly adjusted by means of the control values. In accordance with a first aspect, the distance values are determined at measurement points distributed with a first grid spacing along the movement path, while the control values are determined for actuating points distributed with a second grid spacing along the movement path, the first and the second grid spacings being different.Type: ApplicationFiled: November 21, 2008Publication date: June 4, 2009Inventors: Guenter GRUPP, Ernst Stumpp, Otto Boucky, Joerg Walther