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DOI:  https://doi.org/10.15407/techned2016.03.079


Journal Tekhnichna elektrodynamika
Publisher Institute of Electrodynamics National Academy of Science of Ukraine
ISSN 1607-7970 (print), 2218-1903 (online)
Issue № 3, 2016 (May/June)
Pages 79 – 81


O.Bushma1, V.Sydorets1, Wu Boyi2
1 – Paton Welding Institute of NAS of Ukraine,
11, K.Malevicha str., Kyiv, 03680, Ukraine,
e-mail: Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript
2 – Chinese-Ukrainian E.O.Paton Welding Institute (Guangdong General Research Institute
of Industrial Technology) (Guangzhou Research Institute of Non-Ferrous Metals),
363 Changxing Road, Tianhe, 510650, Guangzhou, China



Volt-ampere characteristics of the laser-arc discharge for different rates of absorption of laser radiation of the base metal have been corrected by taking into account in the energy conservation law the additional input power, which determines by interaction of electric arc plasma with the laser radiation. It is shown that along with a increasing the efficiency of the laser component of the heat source, also increases the efficiency of the arc component due to a significant increasing the absorption coefficient of the laser radiation during the transition of the metal in the liquid state. To determine the temperature dependence of the absorption coefficient of laser radiation by metallic materials the metal under study was considered within the nearly free electron model. In this case, according to the Drude-Zener theory the absorption coefficient is mainly determined by the specific resistance of the metal. References 5, figures 4.


Key words: laser-arc discharge, volt-ampere characteristics, efficiency


Received:    30.01.2016
Accepted:     29.03.2016
Published:   25.04.2016



1. Bushma O.I., Sydorets V.N. Quasi-Statical Volt-Ampere Characteristics of the Combined Laser-Arc Discharge. Tekhnichna elektrodynamika. Tematychnyi vypusk Sylova elektronika ta enerhoefektyvnist.  2010.  Vol. 1.  P. 201-204 (Rus.)
2. Khaskin V.Yu., Korzik V.N., Sydorets V.N., Bushma A.I., Wu Boyi, Luo Ziyi. Improving the Efficiency of Hybrid Welding of Aluminum Alloys. The Paton Welding Journal.  2015.  No 12.  P. 14-18. DOI: https://doi.org/10.15407/tpwj2015.12.03
3. Gvozdetsky V.S., Krivtsun I.V, Chizhenko M.I. Laser-Arc Discharge: Theory and Applications. Welding and Surfacing Review.  Amsterdam: Harwood Academic Publishers, 1995. Vol. 3.  148 p.
4. Pentegov I.V., Sidorets V.N. Energy Parameters in a Mathematical Model of a Dynamic Welding Arc. Welding International.  1990.  Vol. 4.  Issue 4.  P. 272-275. DOI: https://doi.org/10.1080/09507119009447722
5. Shelyagin V.D., Khaskin V.Yu. Tendencies in Development of Laser-Arc Welding (Review). The Paton Welding Journal. – 2002.  No 6.  P. 25-28.