摘要
本文首次测定了高频脉冲TIG焊电弧阳极的平均电流密度分布及其中心电流密度动态过程,研究其变化规律并建立了数学模型,从而探明了高频脉冲TIG焊电弧的高频压缩机理.本文还利用自制的微压测试装置,研究了高频脉冲TIG焊电弧阳极轴向压力的分布,建立了数学模型.试验研究表明,高频脉冲TIG焊电弧阳极能量密度高,阳极轴向压力适中,适宜焊接精密超薄结构,推荐脉冲频率为20KHZ左右.
The distribution of high frequency pulse TIG welding arc anode average current density and the dynamic process of the said arc anode are determined in this paper. Their mathematical models are established, and the compression mechanism of high frequency pulse TIG welding is explored. The distribution of high frequency pulse TIG welding arc anode axial pressure has been studied by a self-made micro-pressure measuring device. And the related mathematical model is established as well. Experiments have shown that high frequency pulse TIG welding is a useful technique for welding precise super-thin plates. An adaptive pulse frequency of about 20kHz is recommended.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
1992年第1期59-66,共8页
Transactions of The China Welding Institution
关键词
高频脉冲
TIG焊电弧
阳极行为
high frequency pulse
TIG welding arc
anode behaviour
compression mechanism of high frequency
