Results 141 to 150 of about 821 (179)
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Microstructural analysis of the anode in gas metal arc welding (GMAW)
Journal of Materials Processing Technology, 2009Abstract The nature of the applied shielding gas has a strong influence on arc stability and transfer metal mode of the welding process. In particular, increase of the percentage of carbon dioxide in argon induces the increase of the transition current value from the globular to spray metal transfer mode. This work shows that these effects are linked
S. Zielińska +6 more
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Feasibility of narrow gap welding using the cold-wire gas metal arc welding (CW-GMAW) process
Welding in the World, Le Soudage Dans Le Monde, 2017This article evaluates the performance of the cold-wire gas metal arc welding (CW-GMAW) process for narrow gap girth welding. The CW-GMAW process is characterized by the introduction of a continuously fed non-energized wire (cold-wire) into the electric arc/weld pool region.
Emanuel B F Dos Santos +2 more
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Heat input in full penetration welds in gas metal arc welding (GMAW)
The International Journal of Advanced Manufacturing Technology, 2013Weld bead characteristics are metallurgically controlled by heat input, which depends on the welding parameters. However, for numerous welding specialists, an accurate measurement of the current, voltage, and welding speed is enough for preventing unambiguous process specifications. But a comprehensive knowledge of the effect of others parameters, such
Luisa Quintino +3 more
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Improving the dynamic metal transfer model of gas metal arc welding (GMAW) process
The International Journal of Advanced Manufacturing Technology, 2014This work presents an improved model of characteristic equations for gas metal arc welding process. In this paper, a dynamic electrical model is introduced as a rectifier power source instead of pervious common simple models. In addition, an electrical resistance model is proposed for bridge in short circuit period to consider the effect of melting ...
A. R. Doodman Tipi +2 more
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Parameters optimization using factorial analysis method for Gas Metal Arc Welding (GMAW) process
AIP Conference Proceedings, 2021Gas Metal Arc Welding (GMAW) is the most widely used process and an essential component in many industrial operations. GMAW welding parameters are the most significant factors influencing the quality, productivity, and cost of the welding joint. Therefore, there is a need to optimize the GMAW process to achieve welding quality because currently, the ...
Mohd Hasril Amiruddin +4 more
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Application of a Front Tracking Method in Gas Metal Arc Welding (GMAW) Simulation
Journal of Manufacturing Science and Engineering, 2004A numerical model is developed to simulate the short-circuiting metal transfer process during gas metal arc welding (GMAW). The energy equation and the Marangoni convection are considered for the first time in analyzing the short-circuiting time. A front-tracking free surface method explicity tracks the profile of the liquid bridge. The electromagnetic
Guo Xu +2 more
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Gas Metal Arc Weld (GMAW) Qualification of 7020-T651 Aluminum
2015Abstract : This study determines weld joint characteristics of high-strength aluminum (Al), fusion-weld filler metals, Al-magnesium (Mg) alloys AA5087, AA5556A, and Al-Mg6-Zr fusion welded with the gas metal arc weld (GMAW) pulse (P) and spray (S) methods to AA7020-T651 Al.
Seth Shira +2 more
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Predicting of bead undercut defects in high-speed gas metal arc welding (GMAW)
Frontiers of Materials Science in China, 2008In the gas metal arc welding (GMAW) process, when the welding speed reaches a certain threshold, there will be an onset of weld bead undercut defects which limit the further increase of the welding speed. Establishing a mathematical model for high-speedGMAWto predict the tendency of bead undercuts is of great significance to prevent such defects. Under
Wen-jing Xu, Chuan-song Wu, De-gang Zou
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Modeling and Optimization of Gas Metal Arc Welding (GMAW) Process
2012Weld quality is greatly affected by the operating process parameters in the gas metal arc welding (GMAW) process. The quality of the welded material can be evaluated by many characteristics, such as bead geometric parameters, deposition efficiency, weld strength, weld distortion, et cetera.
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2017 International Conference on Applied System Innovation (ICASI), 2017
This research uses the finite element analysis software MSC.MARC to analyze the welding deformation, as well as the residual stress, of 6 mm thick stainless steel plates, type SUS304. The discussion includes the usefulness of applying jigs during the welding process and how this impacts the resulting welded structure, when pressure is applied.
Yan-Ru Wang +3 more
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This research uses the finite element analysis software MSC.MARC to analyze the welding deformation, as well as the residual stress, of 6 mm thick stainless steel plates, type SUS304. The discussion includes the usefulness of applying jigs during the welding process and how this impacts the resulting welded structure, when pressure is applied.
Yan-Ru Wang +3 more
openaire +1 more source