Plasma Arc Cutting - Reversed Swirl Ring, Electrode Thread and Cut Direction Effects on Kerf Geometry

Authors

  • S. Chabert Laplace,Université Paul Sabatier, France
  • J. J. Gonzalez Laplace, Université Paul Sabatier, France
  • P. Freton Laplace, Université Paul Sabatier, France

DOI:

https://doi.org/10.14311/ppt.2023.1.1

Keywords:

kerf, cut quality, plasma cutting, air plasma, plasma torch

Abstract

Plasma arc cutting is used to cut any conductive material. It consists in blowing pressurized gas and feed current to an arc, leading to a thin plasma dart able to melt down the material and blow it away, creating a kerf. Its quality depends on its shape. This paper shows, through experimental measurements, how the inner geometry of the torch can affect the cut quality. It appears that one side of the kerf is much more oblique and sensitive to factors variation than the other. A theory based on a computational fluid dynamics model is proposed to investigate the causes of these phenomena.

References

M. Pillet. Les plans d’expériences par la méthode TAGUCHI. 2011. ISBN 978-2-9539428-0-4.

P. Freton et al. Magnetic field approaches in dc thermal plasma modelling. J. Phy. D: Appl. Phys., 44(34):345202, 2011. doi:10.1088/0022-3727/44/34/345202.

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Published

2023-08-08

Issue

Vol. 10 No. 1 (2023)

Section

Articles

License

Copyright (c) 2023 Chabert S., Gonzalez J. J., Freton P.

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