Systematic correlation of power supply design with welding performance

拟议的工作将描述发动机驱动和整流器驱动的弧焊电源的动态特性，以确定在弧焊过程中形成稳定的电弧和熔滴过渡行为的因素。这种电源设备广泛应用于能源和建筑行业，因为这些行业都依赖于现场保护金属弧焊。这项合作将涉及加拿大林肯电气公司，并将为他们提供新的知识，以优化他们的设计方面。分析将包括在受控条件下进行焊接测试，同时测量电压、电流，使用数据采集并将这些信号与高速视频成像同步。这将揭示电输入如何影响熔滴通过电弧的转移。所产生的结果将在物理学和焊接相关杂志上传播，并将更好地了解焊接过程中的弧等离子体相互作用。这些发现将最终解释焊工报告的电源可用性方面的感知差异，并使林肯电气能够增强这些功能，以提高焊接制造过程中的生产率和增强能力。培训的HQP还将为加拿大制造业提供支持，该行业不断需要熟练的焊接工程师。

The proposed work will characterize the dynamics of engine driven versus rectifier based arc welding power supplies to identify factors which develop stable arc and droplet transfer behaviour during arc welding. Such power supply equipment is widely used in the energy and construction industries, since these are reliant on field shield metal arc welding. The collaboration will involve the Lincoln Electric Company of Canada, and will provide them with new knowledge to optimize aspects of their designs. The analysis will involve weld testing under controlled conditions, while measuring voltage, current, using data acquisition, and synchronizing those signals with high speed video imaging. This will reveal how the electrical input influences molten metal droplet transfer through the arc. The results generated will be disseminated in both physics and welding related journals, and will develop a better understanding of arc plasma interactions during welding. The findings will finally explain the perceived differences in power supply usability reported by welders, and allow Lincoln Electric to enhance these features to improve productivity and enhanced capability during welding fabrication. The HQP trained will also support the Canadian fabrication industry which constantly demands skilled welding engineers.