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Patent

Quality control module for tandem arc welding

TLDR
In this article, a data storage medium (74) stores measured data for each electrode during the performing of the weld and a processor (110) performs a process comprising of recalling measured data corresponding to the electrode passing a reference position; and combining the recalled measured data of the plurality of spaced apart electrodes (12, 14, 16, 18) to compute a weld parameter of the tandem welding system at the reference position.
Abstract
A tandem welding system includes a plurality of spaced apart electrodes (12, 14, 16, 18) arranged to travel at a common travel speed. The plurality of spaced apart electrodes (12, 14, 16, 18) cooperatively perform a weld. A data storage medium (74) stores measured data for each electrode during the performing of the weld. A processor (110) performs a process comprising: for each electrode, recalling measured data corresponding to the electrode passing a reference position; and, combining the recalled measured data of the plurality of spaced apart electrodes (12, 14, 16, 18) to compute a weld parameter of the tandem welding system at the reference position.

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Methods and systems for coherent imaging and feedback control for modification of materials

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TL;DR: In this paper, a welding training system includes one or more welding operator devices which provide positional feedback relevant to a quality weld, and when the positional feedback is outside of a predetermined range, a signal is provided to the welding operator.
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TL;DR: In this article, a system for training welders that includes a data generating component, a data capturing component and a data processing and visualization component is presented, which operates in real time and derives data from an actual manually-executed weld and further includes a weld process-specific jig, a calibration block positioned on the jig and at least one target mounted on the welding gun for providing multidimensional position and orientation feedback.
References
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Patent

System and method for controlling a welding process for an arc welder

TL;DR: In this paper, a method and system for controlling a welding cycle of an arc welder comprising of a number of digital programs stored in a digital memory device, with each of the programs including a plurality of digitally coded welding parameters indicative of selected functions of a specific welding cycle, is presented.
Patent

Electric arc welding system

TL;DR: In this paper, an electric arc welding system for creating a first AC welding arc with a first current waveform between a first electrode and a workpiece by a first power supply and a second AC welding assembly by a second power supply as the first and second electrodes are moved in unison along a welding path.
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Tandem electrode welder and method of welding with two electrodes

TL;DR: In this article, an electric arc welding apparatus comprising at least a first consumable electrode and a second consumable electrodes movable in unison along a welding path between the edges of two adjacent, mutually grounded plates, including a first power supply for passing a first welding current at a first low frequency between the first electrode and the two plates, and an output switching network operated at a given low frequency from the two terminals across one of the electrodes and the plates, is presented.
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High current welding power supply

TL;DR: In this paper, a welding power supply for creating welding current in a succession of current pulses with a maximum current level and a trailing off state which current pulses passing through a series circuit including an inductor and electrode in welding relationship with a workpiece was described.
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System and method for estimating true heats of welding processes

TL;DR: In this paper, a waveform-controlled arc welding process with an arc welding torch and a power supply is described. And the power supply includes a sampling circuit for sampling instantaneous current and voltage values of the power during a snip portion (T snip ) of the process interval.