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Main thermophysical processes in laser beam buildup welding of metal powders

  • Effects of Energy Fluxes on Materials
  • Published:
Inorganic Materials: Applied Research Aims and scope

Abstract

The energy balance of laser beam buildup welding of powders is analyzed. Comparison of the obtained results with the experimental data shows that a significant portion of the absorbed power of the laser beam is consumed for evaporation the of powder. A procedure of selection and optimization of laser beam buildup of powder is proposed. It is established that the thermal conductivity and thermal diffusivity of powder can increase significantly within its melting owing to subsequent formation of thermal contact between the melt and underlying layer of powder particles. The range of the Péclet numbers corresponding to high efficiency of laser beam buildup welding of powders is determined.

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Authors and Affiliations

  1. Institute on Laser and Information Technologies (ILIT), Russian Academy of Sciences, Shatura, Moscow oblast, Russia

    V. Ya. Panchenko, V. V. Vasiltsov, M. G. Galushkin & I. N. Il’ichev

  2. Bauman State Technical University, Moscow, Russia

    A. I. Misyurov

Authors
  1. V. Ya. Panchenko
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  2. V. V. Vasiltsov
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  3. M. G. Galushkin
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  4. I. N. Il’ichev
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  5. A. I. Misyurov
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Corresponding author

Correspondence to V. Ya. Panchenko.

Additional information

Original Russian Text © V.Ya. Panchenko, V.V. Vasiltsov, M.G. Galushkin, I.N. Il’ichev, A.I. Misyurov, 2013, published in Fizika i Khimiya Obrabotki Materialov, 2013, No. 2, pp. 5–10.

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Panchenko, V.Y., Vasiltsov, V.V., Galushkin, M.G. et al. Main thermophysical processes in laser beam buildup welding of metal powders. Inorg. Mater. Appl. Res. 5, 199–203 (2014). https://doi.org/10.1134/S2075113314030125

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  • DOI: https://doi.org/10.1134/S2075113314030125

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