Autors: Tongov, M. T., Gechev, A. G.
Keywords: : FEM, TIG, Thermal Plasma, Thermal Processes, Electrical Processes

Abstract: The study presents results from mathematical modeling of the physical processes in the cathode area of an electric welding arc with tungsten cathode. Finite Element Method (FEM) is used to solve electrical, thermal and fluid tasks. When solving the equations, the characteristics of the materials involved in the process are set as temperature functions. As a result of simulation modeling the cathode voltage drop, temperature fields, electric potential, and current density close to the cathode have been obtained. The methods of reading the heat balance in the cathode region are discussed and the role of plasma cooling for concentrating the current lines through the electrode tip is shown.


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TEMEL-ij, vol. 1, issue 2, pp. 102-112, 2017, Macedonia, EURO STARTER, ISBN ISSN 2545 - 4390

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Цитирания (Citation/s):
1. T. Todorov, G. Todorov and B. Romanov, "Design and Simulation of Mould Tools with Multi-Material Structure for Plastic Injection Moulding Based on Additive Technology," 2019 International Conference on Creative Business for Smart and Sustainable Growth (CREBUS), DOI: 10.1109/CREBUS.2019.8840061 - 2019 - в издания, индексирани в Scopus или Web of Science

Вид: пленарен доклад в международен форум, индексирана в Scopus