NUMERICAL SIMULATION OF PULSED ARC WELDING BY MELTING ELECTRODE

摘要：

In this paper the processes of melting and transfer of an electrode metal to the molten pool, hydrodynamics of molten pool in controlled pulsed arc welding in carbon dioxide have been investigated. The process of pulsed arc welding with systematic short-circuits of the arc gap is realized by adaptive algorithms of pulsed control over main energetic parameters of welding-arc current and voltage, arc heated efficiency, peak short-circuiting current, which provide the dosage of energy for melting and transfer of every drop of an electrode metal, the control over fluidity of the weld pool. Physical and mathematical models describing such processes in CO2, original software have been developed. The results of physical simulation and mathematical modelling permit to determine the influence of energetic parameters of the process on the condition of the “power source – electrode – arc – molten pool electrodynamic system at each moment of time.

关键词： Pulse Arc welding Melting of electrode heat-mass exchange

作者: O.I.Shpigunova Prof.A.A.Glazunov

作者单位: Institute of Applied Mathematics and Mechanics of Tomsk State University, Tomsk, Russia,ave.Lenina, 36, 634050, Tomsk, Russia,

会议类型: 国际会议

会议名称: The Fifth International Conference on Physical and Numerical Simulation of Materials Processing(第五届材料与热加工物理模拟及数值模拟国际会议)

会议地点: 郑州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）