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Simulation analysis of double arc in plasma arc welding
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作者 雷玉成 冯波 +1 位作者 韩明娟 王健 《China Welding》 EI CAS 2008年第4期28-32,共5页
Aimed at plasma arc welding, a mathematic model was established according to the theory of magnetic fluid dyaamics. The model was numerically analyzed by ANSYS software. The temperature, current density and plasma vel... Aimed at plasma arc welding, a mathematic model was established according to the theory of magnetic fluid dyaamics. The model was numerically analyzed by ANSYS software. The temperature, current density and plasma velocity distributions of normal arc had been simulated and compared with those of double arc. The results show that the appearance of double arc has made the temperature of the nozzle rise up to 5 000 K. The appearance of side arc could make the current density of the main arc decrease, and also make the maximal temperature of the arc reduce. 展开更多
关键词 plasma arc welding magnetic fluid dynamics double arc
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