激光—CO_2气保复合焊的焊接过程稳定性研究  

Stability in Hybrid Laser-CO_2 Gas Shielded Welding

作　　者：宁丰[1] 吴世凯[1] 陈铠[1] 肖荣诗[1] 

机构地区：[1]北京工业大学激光工程研究院,北京100124

出　　处：《应用激光》2009年第4期298-302,316,共6页Applied Laser

摘　　要：研究了激光—CO_2气保复合焊的稳定性问题。首先通过平均熔滴过渡时间t和表征熔滴波动的样本方差S两个统计量界定了焊接过程稳定性。其次在此基础上标定了焊接过程稳定区,通过分析得到了光丝间距为1mm时过程稳定的焊接参数范围最大。实验表明,在焊接过程不稳定时可通过调整电压1～2V改善工艺适应性。This paper the stability of hybrid laser-CO2 gas shielded welding is studied. First, the stability is defined by two statistics, t and S, which represent average time and fluctuation of drop transfer. Second, a graph with stable welding process was made based on previous definition, and the analysis indicates the range of parameters became widest when distance of laser and arc is 1 millimeter. And more, the experiments indicate that process adaptability could be improved by tuning the voltage of arc by 1-2V when welding process is not stable.

关 键 词：激光电弧复合焊 激光焊接 焊接稳定性 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TG409[自动化与计算机技术—控制科学与工程]