In situ experimental measurement of temperature field and surface tension during pulsed GMAW
| Autor: | Romain Monier, Philippe Gilles, François Thumerel, Julien Chapuis, Cyril Bordreuil, Fabien Soulié |
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| Přispěvatelé: | AREVA NP - Centre Technique (FRANCE), Laboratoire de Mécanique et Génie Civil (LMGC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Assemblages Soudés (AS), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2016 |
| Předmět: |
Liquid metal
Materials science Field (physics) Analytical chemistry Measure (physics) 02 engineering and technology 01 natural sciences Metal transfer Imaging [SPI.MAT]Engineering Sciences [physics]/Materials 020501 mining & metallurgy Gas metal arc welding Surface tension Surface-tension values 0103 physical sciences [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering 010302 applied physics Mechanical Engineering Temperature Metals and Alloys Pulsed arc welding Mechanics Plasma GMA welding [SPI.MECA.GEME]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanical engineering [physics.class-ph] 0205 materials engineering Mechanics of Materials Solid mechanics Real time operations Steels |
| Zdroj: | Welding in the World Welding in the World, Springer, 2016, 60 (5), pp.1021-1028. ⟨10.1007/s40194-016-0358-0⟩ |
| ISSN: | 1878-6669 0043-2288 |
| DOI: | 10.1007/s40194-016-0358-0 |
| Popis: | International audience; In this paper, non-contact measurements are presented to observe droplet oscillations and to measure surface temperature during Pulsed GMAW. The techniques enable to investigate in situ the behavior of mild steel liquid metal surrounded by Ar + 8%CO2 plasma and then to measure temperature dependence of surface tension. Different temperatures are obtained by changing the process parameters. Surface tension values are a little higher than values found in the literature but the results demonstrate the interest of the developed setup. To conclude, a non-dimensional analysis is carried out, based on experimental results, to investigate the relative importance of the different phenomena acting during the transfer. |
| Databáze: | OpenAIRE |
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