Dynamics of elemental separation of metal vapor in arc plasma during welding and mechanism of fume formation

今后的研究目标是使弧焊技术从“技术”走向“科学”，因为弧焊技术作为制造业的基础技术是必不可少的。本课题的研究方向是：（1）焊接过程中电弧等离子体中金属蒸气行为和烟尘形成的可视化研究;（2）电弧焊接过程全系统的数值模拟研究。从实验和计算两方面揭示了电弧等离子体中金属蒸气元素分离的动力学过程和烟尘形成机理。

The future goal of this research is to innovate on arc welding technology from “skill” to “science”, because arc welding technology is necessary as a basic technology for manufacturing industries. The approach of this research for getting the future goal is firstly (1) the visualization of metal vapor behavior and fume formation in arc plasma during welding and also is secondary (2) the numerical simulation of total system of arc welding process. From both results of experiments and calculations, (3) dynamics of elemental separation of metal vapor in arc plasma during welding and mechanism of fume formation are revealed.