| 基于电弧光谱的钢熔化极惰性气体保护焊质量判识 |
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| 引用本文： | 李志勇,丁京滨,李桓,杨立军.基于电弧光谱的钢熔化极惰性气体保护焊质量判识[J].机械工程学报,2009,45(4). |
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| 作者姓名： | 李志勇 丁京滨 李桓 杨立军 |
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| 作者单位： | 1. 中北大学焊接研究中心,太原,030051
2. 天津大学材料学院,天津,300072 |
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| 基金项目： | 国家自然科学基金，天津市应用基础研究项目 |
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| 摘 要： | 通过对熔化极惰性气体保护电弧焊(MIG焊)电弧光谱分布进行采集,研究其光谱分布的基本特征,并基于光谱分布的分析,通过预设干扰因素,对不同特征谱段光谱信号随焊接过程的变化进行采集,寻求MIG焊接质量在线光谱测控的理论依据和工程实现.研究结果表明,MIG焊电弧光谱在不同谱段存在金属谱线和Ar谱线聚集区.在不同弧长下的不同熔滴过渡形态,其光谱信号在特征谱段得到明显反映,电流变化引起的焊道变宽也有很好的特征信号;不同干扰因素引起的焊接缺陷,在焊接电弧光谱信号不同谱段的分布和变化规律不同,通过对特征谱段信息的采集,可以获得关于焊接过程信息的特征信号,从而实现对MIG焊接质量的分类判识.
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| 关 键 词： | 电弧光谱 干扰因素 熔化极惰性气体保护电弧焊 焊接质量 |
MIG Welding Quality Diagnose Based on Arc Light Spectrum |
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| LI Zhiyong,DING Jingbin,LI Huan,YANG Lijun.MIG Welding Quality Diagnose Based on Arc Light Spectrum[J].Chinese Journal of Mechanical Engineering,2009,45(4). |
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| Authors: | LI Zhiyong DING Jingbin LI Huan YANG Lijun |
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| Affiliation: | 1.Welding Research Center;North University of China;Taiyuan 030051;2.School of Material Science and Engineering;Tianjin University;Tianjin 300072 |
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| Abstract: | Through collecting MIG welding arc light spectrum of steel, the basic characteristic of the spectrum distribution is studied.Based on the analysis, special spectral zones are selected for collecting the light spectral signal of welding process with preset disturbance factors.The studies aim to acquire the theory base of online welding quality test and control based on arc light spectrum and its application.The results show that there are aggregation zones of metal spectral line and Ar spectral line in diffe... |
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| Keywords: | Arc light spectrum Disturbance factor MIG welding Welding quality |
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