Lincoln Global, Inc.

Licoln Global, Inc.

Badri K Narayanan

Steven R Peters

Patrick T Soltis

Russell Kenneth Myers

Paul Edward Denney

Michael Whitehead

Dionysus Damato

Elliott K Stava

Michael A Kottman

John Benjamin Schaeffer

John R Procario

Judah B Henry

Shenjia Zhang

Judah Benjamin Henry

Edward A Enyedy

William Thomas Matthews

Bruce John Chantry

Steven R Sumner

J Ben Schaeffer

Joel D Kneisley

Douglas N Dunbar

David John Muzilla

Daniel J Langham

Yen-Chih Liao

Alexander Joseph Zaddach

Ben Schaeffer

Eric Stewart

Shitong Cao

Daya Singh

Lisa McFadden

Sev Johansson

John Procario

Ben J Schaeffer

The disclosed technology generally relates to consumable electrode wires and more particularly to consumable electrode wires having a core-shell structure, where the core comprises aluminum. In one aspect, a welding wire comprises a sheath having a steel composition and a core surrounded by the sheath. The core comprises aluminum (Al) at a concentration between about 3 weight % and about 20 weight % on the basis of the total weight of the welding wire, where Al is in an elemental form or is alloyed with a different metal element. The disclosed technology also relates to welding methods and systems adapted for using the aluminum-comprising electrode wires.

Additive manufacturing using aluminum-containing wire

Aluminum-containing welding electrode

The disclosed technology generally relates to welding, and more particularly to a consumable welding wire for metal arc welding, and a method and a system for metal arc welding using the consumable welding wire. In one aspect, a method of arc welding includes providing a welding wire comprising one or more alkaline earth metal elements. The method additionally includes applying power to the welding wire to generate a plasma arc sufficient to melt the welding wire. The method further includes depositing molten droplets formed by melting the welding wire onto a workpiece at a high deposition rate while regulating to maintain a substantially constant power delivered to the plasma arc.

Welding electrode wires having alkaline earth metals

Embodiments of additive manufacturing systems are disclosed. In one embodiment, an additive manufacturing system includes an array of multiple electrodes for sequentially depositing material layer-by-layer to form a three-dimensional (3D) part. The system includes a power source to provide electrical power for establishing a welding arc for each electrode. The system includes a drive roll to drive each electrode. The system also includes a controller to operate the system at a first deposition rate to form first resolution contour portions of a layer of the part. The controller also operates the system at a second deposition rate to form second resolution fill portions of the layer of the part. The system provides variable width deposition at the second deposition rate using a variable number of the electrodes. The first deposition rate is lower than the second deposition rate, and the first resolution is higher than the second resolution.

Methods and systems for hybrid deposition rate near net shape additive manufacturing

Embodiments of systems and methods for characterizing weldments are disclosed. One embodiment includes a method of generating an algorithm for classifying weldments as meeting or not meeting a specification. Training data is read by a machine learning system. The training data includes cross-sectional images of training weldments, truth data indicating whether the training weldments meet the specification or not, and training weld data associated with creating the training weldments. The machine learning system trains up an algorithm using the training data such that the resultant algorithm can classify a subsequent test weldment as meeting the specification or not meeting the specification when a cross-sectional image of the test weldment and test weld data used to create the test weldment are read and processed by the classification algorithm as trained.

Machine learning for weldment classification and correlation

The disclosed technology generally relates to consumable electrode wires and more particularly to consumable electrode wires having a core-shell structure, where the core comprises chromium. In one aspect, a welding wire comprises a sheath having a steel composition and a core surrounded by the sheath. The core comprises chromium (Cr) at a concentration between about 12 weight % and about 18 weight % on the basis of the total weight of the welding wire, manganese (Mn) at a concentration between about 12 weight % and about 18 weight % on the basis of the total weight of the welding wire, nickel (Ni) at a concentration between zero and about 5 weight % on the basis of the total weight of the welding wire, and carbon (C) at a concentration greater than zero weight %, wherein concentrations of Ni, C and Mn are such that [Ni]+30[C]+0.5[Mn] is less than about 12 weight %, wherein [Ni], [C], and [Mn] represent weight percentages of respective elements on the basis of the total weight of the welding wire. The disclosed technology also relates to welding methods and systems adapted for using the chromium-comprising electrode wires.

Electrodes for forming austenitic and duplex steel weld metal

Embodiments of the present invention are directed to systems and methods of predicted a welding property for a given welding operation using at least one electrode. Embodiments determine a predicted weld deposit property and compare the predicted property to a desired property to determine whether or not a selected electrode for the given welding operation can achieve the desired weld deposit.

System and method for positive metal identification and intelligent consumable identification

The invention described herein generally pertains to a system and method related to a semi-automatic or a manual welding operation and detecting a base material (e.g., workpiece) temperature, communicating the base material temperature, and adjusting the welding operation based on the detected base material temperature. A temperature sensor can detect temperature at a location that is a distance from the arc and, for instance, parallel to a direction of travel of the welding torch and such detected temperature can be communicated to the user performing the weld or the user controlling the semi-automatic welding system. The user can be informed if the detected temperature is within a tolerance or approved range or if the detected temperature is outside the tolerance or approved range for the type of base material and/or pre-defined temperature.

Method and system for welding with temperature detector

The disclosed technology generally relates to welding, and more particularly to a consumable electrode wire for metal arc welding, and a method and a system for metal arc welding using the consumable electrode wire. In one aspect, a consumable welding wire configured to serve as an electrode during metal arc welding comprises one or more alkaline earth metal elements at a concentration between 0.005% and 10% on the basis of a total weight of the welding wire.

Welding helmets, systems, and kits providing real-time fume exposure monitoring and warning capability during an arc welding process. A welding helmet configured to protect the head of a user during a welding process is configured with an intelligent warning apparatus and an air-sampling pick-up and output port. The air-sampling pickup and output port connects to a proximal end of an air sampling tube for sampling breathable air within the welding helmet, and a distal end of the air-sampling tube connects to an air-sampling in-take port of an external aerosol monitoring device. The intelligent warning apparatus communicates with the aerosol monitoring device to receive air sample output data from the aerosol monitoring device, and to process the air sample output data to generate warning data and/or warning signals based on preset exposure level set points and/or exposure warning operating modes.

Welding helmet configuration providing real-time fume exposure warning capability

Embodiments of the present invention comprise a system and method to weld or join coated materials using an arc welding system alone, or in combination with a hot wire system, where the arc welding system uses a welding current having an AC current portion to build a droplet for transfer to the workpiece. In further embodiments, the workpiece is coated with a material, such as zinc, and the arc welding system uses an AC welding waveform which is capable of welding coated workpieces with little or no porosity or spatter and can achieve enhanced performance. Additional embodiments use an enhanced electrode to provide optimum porosity performance. Such embodiments allow for the welding of coated material with little or no porosity and spatter, and at a high welding rate.

Method and system to use AC welding waveform and enhanced consumable to improve welding of galvanized workpiece

A method and system to manufacture workpieces employing a high intensity energy source to create a puddle and at least one resistively heated wire which is heated to at or near its melting temperature and deposited into the puddle as droplets.

Method and system for additive manufacturing using high energy source and hot-wire

An electric arc welder having an inverter with a waveform generator that generates a welding waveform with a waveform period and a root mean square (RMS) level for maintaining a stable short welding arc based on at least a cored welding electrode. The electric arc welder having a circuit to adjust a wave balance of the welding waveform to maintain the stable short welding arc, where the wave balance is a ratio between a period of a positive portion of the welding waveform and the waveform period.

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Highland Heights, OH, United States of America

Badri K Narayanan