局部干法焊接侧向风场对电弧传感特性影响的试验研究  

Experimental Study on Influence of Lateral Wind Field on Arc Sensing Characteristics in Local Dry Welding Process

作　　者：高延峰[1] 吴东[1] 

机构地区：[1]南昌航空大学航空制造工程学院,江西南昌330063

出　　处：《热加工工艺》2017年第5期82-85,共4页Hot Working Technology

摘　　要：为了实现使用电弧传感检测技术对局部干法焊接过程的焊缝跟踪,对不同侧向风速下电弧的稳定性和电弧传感特性进行了试验研究。试验结果表明:侧向风场对焊接过程的稳定性具有较大的影响,随着侧向风速的增加,焊接过程的熄弧率明显增大。这说明在局部干法焊接环境中,焊接过程的工艺参数范围变窄。采用多元回归方法对不同侧向风速下电弧传感特性试验数据进行了处理,获得了不同侧向风速下的电弧传感模型。模型表明,随着侧向风速的增加,电弧传感的灵敏度变差。本研究的试验结果为局部干法焊接电弧传感与检测过程的实现提供了基础依据。In order to realize the welding seam tracking in local dry welding process by using the arc sensor detection technology, the arc stability and arc sensing characteristics under different lateral wind speeds were studied. The experimental results show that the lateral wind has a significant influence on the welding process stability. With the increase of lateral wind speed, the arc quenching rate obviously increases, which shows that the range of welding process parameters becomes narrow in the local dry welding environment. The multiple regression method was used to process the test data of arc sensing characteristics under different lateral wind speeds, and the arc sensing models under different lateral wind speeds were obtained. The model shows that with the increase of the lateral wind speed, the sensitivity of the arc sensor becomes worse. The experimental results of this study provide the basis for the realization of the local dry welding arc sensing and detection.

关 键 词：局部干法焊接 侧向风场 电弧传感特性 焊枪高度 焊接电流 

分 类 号：TG456.5[金属学及工艺—焊接]