中文摘要：

建立一套用于旁路耦合电弧MIG焊接的实验系统,运用LabVIEW编写旁路电弧MIG焊多路电流电压、电弧图像的采集程序,实现焊接电流、电压高速采集,实时显示及存储功能.根据采集得到的实验数据,分析在不同焊接旁路电流输出下,焊接电弧图像、电流电压同步采集过程中电流与电压数值关系及电弧形态.同步过程电流电压数值关系和电弧形态.研究结果表明,旁路电弧MIG焊接过程电流电压信号稳定,焊缝成型质量好,符合旁路耦合电弧理论关系.

英文摘要：

A set of experimental system of by-pass coupled arc MIG welding was set up. The date acquisition program for multi-pass current voltage and arc of by-pass coupled arc MIG welding, which was programmed with LabVIEW, could achieve high-speed data gathering, real-time display and saving of welding current and voltage. According to the experimental data gathered, the relationship between the data of current and voltage, the form of the arc in the welding process were analyzed for different output of by- pass current. The investigation result showed that the signals of the current and voltage in the process of the by-pass arc welding were stable and the quality of welding formation was fine, meeting the theoretical requirement.