Abstract:
The products of laser cutting of metals on an automated laser setup are investigated. Results of model experiments are presented, where soft wax was used instead of metal transforming into the melt; soft wax filled a narrow flat slot between two glass plates and was removed by a heated air stream. The physical processes of melting of the liquid-wax film, its destruction, and entrainment by the gas jet being assumed to be analogous to the processes of metal-melt spraying inside the cut in full-scale experiments, the characteristic size of drops formed thereby is evaluated. The modeling results are in qualitative agreement with the results of full-scale experiments. It is shown that the quality of laser cutting of metals directly depends on the character of spraying of the liquid melt and the process of its removal.
Keywords:
laser cutting, metal, melting, gas jet, motion of a liquid film, destruction of the liquid, roughness, burr, modeling.
Citation:
O. B. Kovalev, A. M. Orishich, A. P. Petrov, V. M. Fomin, P. V. Yudin, A. N. Malov, G. V. Ermolaev, “Modeling of the front of melting and destruction of a melt film during gas-laser cutting of metals”, Prikl. Mekh. Tekh. Fiz., 45:1 (2004), 162–172; J. Appl. Mech. Tech. Phys., 45:1 (2004), 133–141
\Bibitem{KovOriPet04}
\by O.~B.~Kovalev, A.~M.~Orishich, A.~P.~Petrov, V.~M.~Fomin, P.~V.~Yudin, A.~N.~Malov, G.~V.~Ermolaev
\paper Modeling of the front of melting and destruction of a melt film during gas-laser cutting of metals
\jour Prikl. Mekh. Tekh. Fiz.
\yr 2004
\vol 45
\issue 1
\pages 162--172
\mathnet{http://mi.mathnet.ru/pmtf2350}
\elib{https://elibrary.ru/item.asp?id=17249188}
\transl
\jour J. Appl. Mech. Tech. Phys.
\yr 2004
\vol 45
\issue 1
\pages 133--141
\crossref{https://doi.org/10.1023/B:JAMT.0000009185.27956.3a}
Linking options:
https://www.mathnet.ru/eng/pmtf2350
https://www.mathnet.ru/eng/pmtf/v45/i1/p162
This publication is cited in the following 5 articles:
Saeed Rubaiee, “Parametric assessment of surface behavior and the impact of heat in micro drilling of fiber laser machined AISI h13”, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 237:9 (2023), 2125
Anatoly M. Orishich, Victor B. Shulyatyev, Alexander E. Filon, “Craterlike structures on the cut surface after oxygen-assisted laser cutting of steel”, Journal of Laser Applications, 28:1 (2016)
Shaogang Guo, Hu Jun, Luo Lei, Zhenqiang Yao, “Numerical analysis of supersonic gas-dynamic characteristic in laser cutting”, Optics and Lasers in Engineering, 47:1 (2009), 103
O.B. Kovalev, P.V. Yudin, A.V. Zaitsev, “Modeling of flow separation of assist gas as applied to laser cutting of thick sheet metal”, Applied Mathematical Modelling, 33:9 (2009), 3730
G V Ermolaev, O B Kovalev, A M Orishich, V M Fomin, “Mathematical modelling of striation formation in oxygen laser cutting of mild steel”, J. Phys. D: Appl. Phys., 39:19 (2006), 4236
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