| 基于数学形态学图像处理的TIG焊接过程正面熔宽控制 |
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| 引用本文： | 张丽玲,薛家祥,王振民.基于数学形态学图像处理的TIG焊接过程正面熔宽控制[J].焊接学报,2007,28(2):51-54. |
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| 作者姓名： | 张丽玲 薛家祥 王振民 |
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| 作者单位： | 1. 南昌工程学院,机械与动力工程系,南昌,330099;华南理工大学,机械工程学院,广州,510640
2. 华南理工大学,机械工程学院,广州,510640 |
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| 摘 要： | 焊接过程熔池动态特征信息获取与智能控制一直是焊接界研究的前沿课题.针对TIG焊接过程没有飞溅,熔池形状稳定、清晰的特点,以TIG焊接过程为研究对象,采用机器视觉技术获取焊接动态过程正面熔池图像点,将数学形态学中的二值理论应用于熔池图像的处理,结合模糊逻辑和比例积分微分(PID)闭环控制理论,从弧焊过程熔透质量控制的角度出发,从软件开发到硬件组成,设计了一套焊接过程图像处理及正面熔宽控制系统.结果表明,该系统可以很好地克服焊接过程中的外界干扰,保证焊缝成形的稳定,从而实现了TIG焊质量控制的目标.
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| 关 键 词： | 数学形态学 图像处理 正面熔宽控制 钨极惰性气体保护焊 数学形态学 图像处理 焊接过程 熔宽 控制的目标 image processing based TIG welding pool control 质量控制 焊缝成形 外界干扰 控制系统 结果 设计 硬件组成 软件开发 熔透 弧焊过程 |
| 文章编号： | 0253-360X（2007）02-051-04 |
| 收稿时间： | 2006/7/26 0:00:00 |
| 修稿时间： | 2006-07-26 |
Width control of obverse pool of TIG welding based on morphological image processing |
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| ZHANG Liling,XUE Jiaxiang and WANG Zhenmin.Width control of obverse pool of TIG welding based on morphological image processing[J].Transactions of The China Welding Institution,2007,28(2):51-54. |
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| Authors: | ZHANG Liling XUE Jiaxiang and WANG Zhenmin |
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| Affiliation: | Department of Mechanical and Power Engineering, Nanchang Institute of Technology, Nanchang 330099, China;School of Mechanical Engineering, South China University of Technology, Guangzhou 510640, China,School of Mechanical Engineering, South China University of Technology, Guangzhou 510640, China and School of Mechanical Engineering, South China University of Technology, Guangzhou 510640, China |
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| Abstract: | Obtaining the dynamic characteristic information of molten pool and intelligent controlling in the welding process are focus of research in welding field.As to the TIG welding,machine vision technique is adopted to obtain the image of welding molten pool,and penetration quality controlling techniques in welding process are deeply researched.Mathematic morphologic theory is used to process welding image,and fuzzy inference and PID controlling theory are combined to form a whole image processing and closed-loop controlling system.In the controlling experiment,the abruptly-change Q235 steel workpieces of 2 mm thickness are used.The results indicated that the quality controlling system can conquer outside disturb in welding process effectively and ensure the stabilization of welding formation. |
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| Keywords: | mathematic morphologic image process width control of obverse pool tungsten inert-gas welding |
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