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Governing parameters affecting fume generation in short-circuit MAG welding

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Abstract

The operating parameters of the short-circuiting MAG process are expected to have a significant effect on fume generation. Despite this, no conclusive results on this subject have been presented in current literature. The objective of this work was to determine the most significant governing parameters affecting fume generation, by attempting to isolate each parameter from the others as much as possible. Several welding tests were carried out, and the effect of short-circuiting current, arc length (welding voltage), arcing time, and droplet diameters before detachment were investigated. The results show that the increase in each of these parameters contributes to a higher fume generation rate, and their effect becomes more significant when they act together.

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Acknowledgments

The authors would like to express their gratitude to the Federal University of Uberlandia, Brazil, through its Center for Research and Development of Welding Processes (Laprosolda), for the laboratory support for fume quantification. They also would like thanking the Brazilian councils for research development, CAPES, and CNPq for the financial support.

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Authors and Affiliations

  1. Center for Research and Development of Welding Processes, UFU—Federal University of Uberlandia, Uberlandia, MG, Brazil

    Américo Scotti

  2. IFMA—Federal Institute of Maranhao, São Luis, MA, Brazil

    Valter Alves de Meneses

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  1. Américo Scotti
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  2. Valter Alves de Meneses
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Correspondence to Américo Scotti.

Additional information

Doc. IIW-2437, recommended for publication by Commission XII “Arc Welding Processes and Production Systems.”

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Scotti, A., de Meneses, V.A. Governing parameters affecting fume generation in short-circuit MAG welding. Weld World 58, 367–376 (2014). https://doi.org/10.1007/s40194-014-0122-2

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  • DOI: https://doi.org/10.1007/s40194-014-0122-2

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