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Numerical definition of an equivalent GTAW heat source
Journal of Materials Processing Technology, 2013Abstract The aim of this paper is to present a new numerical heat source for gas tungsten arc welding (GTAW) simulation. This source is described as a homogeneous thermal flux which is defined by a power P distributed in a disk the radius of which is R : it enables the main dimensions of the weld bead and the evolution in temperature in the solid ...
François Pichot +3 more
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A Model-Free Adaptive Control of Pulsed GTAW
2007A closed-loop system is developed to control the weld pool geometry, which is specified by the backside weld width. The welding current and speed are selected as the control variables. A MISO ARX model is used to model this dynamic process. Because of uncertainties in the GTAW process, it is very difficult to design an effective control scheme by ...
F. L. Lv, S. B. Chen, S. W. Dai
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Rupture of GTAW steel-aluminium overlap joint
2006Inexistant
Sierra, G. +4 more
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PROCESSO GTAW: NOVAS TECNOLOGIAS
2019Geovanna Vitória da Silva Gonçalves +4 more
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Arc characteristic of multi-cathode three-electrode GTAW (TE-GTAW)
Welding in the WorldMateus Barancelli Schwedersky +3 more
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Analysis and Modeling of GTAW Weld Pool Geometry
2013A three dimensional vision sensing system was used to mimic the human vision system to observe the three-dimensional weld pool surface in pipe Gas Tungsten Arc Welding (GTAW) process. Novel characteristic parameters containing information about the penetration state specified by its back-side weld pool width and height were proposed based on the ...
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