Diagnosis of TIG welding based on ultraviolet radiation  

作　　者：李志勇 顾小燕 王宝 

机构地区：[1]Welding Technology Research Center, North University of China, Taiyuan, 030051

出　　处：《China Welding》2009年第2期6-11,共6页中国焊接（英文版）

基　　金：This work is supported by National Natural Science Foundation of China（50505048）.

摘　　要：Through collecting the radiation of tungsten inert gas （TIG） welding arc, the radiation distribution in ultraviolet zone is analyzed in order to study the variation rule of ultraviolet radiation versus welding condition. The explanation for the variation is also provided based on spectral radiation theory of arc light. Furthermore, through analysis of disturbance factors, the integral intensity signal of radiation in ultraviolet zone is applied for diagnosis of welding process. The spectral signal of ultraviolet radiation can reflect the disturbance factors and welding conditions, which can be used for online diagnosis of welding process.Through collecting the radiation of tungsten inert gas （TIG） welding arc, the radiation distribution in ultraviolet zone is analyzed in order to study the variation rule of ultraviolet radiation versus welding condition. The explanation for the variation is also provided based on spectral radiation theory of arc light. Furthermore, through analysis of disturbance factors, the integral intensity signal of radiation in ultraviolet zone is applied for diagnosis of welding process. The spectral signal of ultraviolet radiation can reflect the disturbance factors and welding conditions, which can be used for online diagnosis of welding process.

关 键 词：arc spectrum ultraviolet zone tungsten inert gas welding disturbance factor 

分 类 号：TG444.74[金属学及工艺—焊接] TS103.823[轻工技术与工程—纺织工程]