焊接光谱信息的研究现状  

Research status of welding spectral imformation

作　　者：林杨胜蓝 何建萍[1] 王付鑫[1] 

机构地区：[1]上海工程技术大学材料工程学院,上海201620

出　　处：《电焊机》2014年第9期27-31,共5页Electric Welding Machine

基　　金：国家自然科学基金资助项目(51275283);国家自然科学基金资助项目(50775135);上海高校青年教师培养资助计划(shgcjs031)

摘　　要：对电弧焊的研究,无论从冶金学还是结构力学方面在材料加工过程中都是重要的,大部分问题的分析都必须依赖于焊接电弧所发生的现象做出正确的认识与理解。因此,需要对焊接电弧内部的物理过程及现象进行充分的研究以获取更多的信息。由于电弧的特殊性,导致直接测量焊接电弧困难。以往的对于电弧声信号、电信号和光强信号的研究,在焊接过程检测中存在一定的局限性,光谱法对克服这些困难具有极大的优越性。因此,如何获取和分析电弧光谱信息,对于焊接研究电弧物理特性具有重要意义。The research on electric-arc welding, both in terms of Metallurgy and Structural Mechanics,is important in the field of Material Processing. Many analysis must depend on the clear and correct understanding of welding arc phenomenon. So it is essential to do the sufficient study on arc physics behaviour and phenomenon to access to more useful information. But the arc characteristic caused the difficult to measure it directly. In the past, scholars have used the acoustic signals, electrical signals and the light intensity signals to do the research, but in the detection there are still some limitations during the welding processing. However, spectroscopy has the superiority. All in all, how to acquisition and analysis the spectrum of arc has an imperative significance for physical properties of arc.

关 键 词：电弧焊 焊接电弧 光谱法 

分 类 号：TG403[金属学及工艺—焊接]