Keywords
volt-ampere characteristics
efficiency лазерно-дуговой разряд
вольт-амперные характеристики
эффективность
How to Cite
Abstract
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.
References
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. – Pp. 201-204 (Rus.)
Khaskin V.Yu., Korzik V.N., Sydorets V.N., Bushma A.I., Wu Boyi, Luo Ziyi. Improving the Efficiency of Hybrid Welding of Aluminium Alloys // The Paton Welding Journal. – 2015. – No 12. – Pp. 14-18. DOI: 10.15407/tpwj2015.12.03
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.
Pentegov I.V., Sidorets V.N. Energy Parameters in a Mathematical Model of a Dynamic Welding Arc // Welding International. – 1990. –Vol. 4. Issue 4. – Pp. 272-275. DOI: 10.1080/09507119009447722
Shelyagin V.D., Khaskin V.Yu. Tendencies in Development of Laser-Arc Welding (Review) // The Paton Welding Journal. – 2002. – No 6. – Pp. 25-28.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright (c) 2022 Array