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Modeling of the Free-Surface Shape in Laser Cutting of Metals. 1. Effect of Polarization of the Gaussian Beam on the Shape of the Surface Formed

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Journal of Applied Mechanics and Technical Physics Aims and scope

Abstract

A three-dimensional problem of describing the shape of a surface formed owing to interaction of laser radiation with a substance in processes of laser cutting of metals is considered. The effect of radiation polarization (linear, elliptic, and circular) on the absorption factor is analyzed. For calculating the latter, a generalized formula is proposed, which takes into account the spatial orientation of the plane of incidence of radiation. The influence of laser-radiation parameters on the surface shape and cut depth is studied numerically. In the case of generation of a beam with the TEM00 mode, it is shown that the use of elliptic polarization of radiation with a certain ratio of semi-axes, aligned with the beam direction, is preferable.

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Authors and Affiliations

  1. Institute of Theoretical and Applied Mechanics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia

    O. B. Kovalev & A. V. Zaitsev

Authors
  1. O. B. Kovalev
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  2. A. V. Zaitsev
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Kovalev, O.B., Zaitsev, A.V. Modeling of the Free-Surface Shape in Laser Cutting of Metals. 1. Effect of Polarization of the Gaussian Beam on the Shape of the Surface Formed. Journal of Applied Mechanics and Technical Physics 45, 915–922 (2004). https://doi.org/10.1023/B:JAMT.0000046041.68493.d9

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  • DOI: https://doi.org/10.1023/B:JAMT.0000046041.68493.d9

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