Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/4961
Título: The effect of metal transfer stability (spattering) on fume generation, morphology and composition in short-circuit MAG welding
Autor: Meneses, Valter Alves de
Gomes, João Fernando Pereira
Scotti, Americo
Palavras-chave: Welding
Short-Circuiting MAG
Metal Transfer Stability
Fume Generation
Data: Jul-2014
Editora: Elsevier Science SA
Citação: MENESES, Valter Alves de; GOMES, João Fernando Pereira; SCOTTI, Americo – The effect of metal transfer stability (Spattering) on Fume generation, morphology and composition in short-circuit MAG welding. Journal of Materials Processing Technology. ISSN: 0924-0136. Vol. 214, nr. 7 (2014), pp. 1388-1397
Resumo: The main objective of this work was to evaluate the hypothesis that the greater transfer stability leads also to less volume of fumes. Using an Ar + 25%CO2 blend as shielding gas and maintaining constant the average current, wire feed speed and welding speed, bead-on-plate welds were carried out with plain carbon steel solid wire. The welding voltage was scanned to progressively vary the transfer stability. Using two conditions of low stability and one with high stability, fume generation was evaluated by means of the AWS F1.2:2006 standard. The influence of these conditions on fume morphology and composition was also verified. A condition with greater transfer stability does not generate less fume quantity, despite the fact that this condition produces fewer spatters. Other factors such as short-circuit current, arcing time, droplet diameters and arc length are the likely governing factors, but in an interrelated way. Metal transfer stability does not influence either the composition or the size/morphology of fume particulates. (c) 2014 Elsevier B.V. All rights reserved.
Peer review: yes
URI: http://hdl.handle.net/10400.21/4961
DOI: 10.1016/j.jmatprotec.2014.02.012
ISSN: 0924-0136
Versão do Editor: http://www.sciencedirect.com/science/article/pii/S0924013614000533#
Aparece nas colecções:ISEL - Eng. Quim. Biol. - Artigos

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