1997
DOI: 10.2207/qjjws.15.415
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Arc Light Sensing of Droplet Transfer and Its Analysis in Pulsed GMAW Process.

Abstract: A new method and its principle for sensing droplet transfer in GMA W of steel and aluminum alloy have been researched in this paper. A practical arc light sensing and controlling system has been developed. The reliability of the arc light characteristic signal that indicates droplet detachment and the control accuracy of the system have been verified using high-speed photography. Based on the mathematical model set up in the paper, the mechanism of the signal and relative phenomena were analyzed. The parameter… Show more

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Cited by 10 publications
(8 citation statements)
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“…On-line monitoring of the welding process reduces the effects of the uncontrollable factors and also saves on the otherwise resource consuming quality control inspection. Several sources such as welding sound, voltage signal, current signal, power, weld-pool image, electric arc are found to have a correlation with weld quality [6].Therefore the most commonly used methods of on-line quality inspection derive from the use of welding voltage and current [7], welding sound [8] and high-speed photography [9].…”
Section: Introductionmentioning
confidence: 99%
“…On-line monitoring of the welding process reduces the effects of the uncontrollable factors and also saves on the otherwise resource consuming quality control inspection. Several sources such as welding sound, voltage signal, current signal, power, weld-pool image, electric arc are found to have a correlation with weld quality [6].Therefore the most commonly used methods of on-line quality inspection derive from the use of welding voltage and current [7], welding sound [8] and high-speed photography [9].…”
Section: Introductionmentioning
confidence: 99%
“…To better understand and control GMAW process, the metal transfer process has been studied widely. A lot of metal-transfer sensing methods have been proposed [1][2][3][4][5][6][7][8][9][10]. In [7], a technique named as laser back-lighting is proposed to image the metal transfer with good quality and contrast.…”
Section: Introductionmentioning
confidence: 99%
“…However, the investment for non-traditional methods is typically high. Cost effective non-traditional methods such as the arc light radiation monitoring which can measure and analyse the intensity of the whole range of the arc light spectrum or intensity of a single emission line (Li P.J., et al, 2001;Wang Q.L., et al, 1997;Yoo C.D., et al, 1997;Ancona A., et al, 2004;Sadek C.A., et al, 2006;Li Z.Y., et al, 2009;Mirapeix J., et al, 2008) are thus desired. This method was first used to determine the length of the arc in the method of MAG in 1966 (Johnson C.A., et al, 1966).…”
Section: Introductionmentioning
confidence: 99%