| 基于视觉的不锈钢Nd：YAG激光焊焊接熔池和小孔的图像处理 |
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| 引用本文： | 高进强,秦国梁,杨家林,何建国,张涛,武传松. 基于视觉的不锈钢Nd：YAG激光焊焊接熔池和小孔的图像处理[J]. 中国有色金属学会会刊, 2011, 0(2): 423-428 |
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| 作者姓名： | 高进强 秦国梁 杨家林 何建国 张涛 武传松 |
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| 作者单位： | 山东大学材料液固结构演变与加工教育部重点实验室;中国工程物理研究院机械制造工艺研究所; |
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| 基金项目： | Project (10776020) supported by the Joint Foundation of the National Natural Science Foundation of China and China Academy of Engineering Physics |
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| 摘 要： | 在激光焊接过程中存在众多干扰因素,为保证焊接质量,需要对激光焊进行质量控制。实现焊接质量控制的关键是表征焊接质量信息的获取,而焊接熔池和小孔包含丰富的焊接质量信息。针对不锈钢Nd：YAG激光焊,构建了同轴视觉检测系统,获得了熔池和小孔图像。根据熔池和小孔图像的特点,设计了图像处理算法,并分别针对熔池和小孔确定了搜索起始点和搜索准则。
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| 关 键 词： | 激光焊 小孔 熔池 边缘 图像处理算法 |
Image processing of weld pool and keyhole in Nd:YAG laser welding of stainless steel based on visual sensing |
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| GAO Jin-qiang,QIN Guo-liang,YANG Jia-lin,HE Jian-guo,ZHANG Tao,WU Chuan-song. Image processing of weld pool and keyhole in Nd:YAG laser welding of stainless steel based on visual sensing[J]. Transactions of Nonferrous Metals Society of China, 2011, 0(2): 423-428 |
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| Authors: | GAO Jin-qiang QIN Guo-liang YANG Jia-lin HE Jian-guo ZHANG Tao WU Chuan-song |
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| Affiliation: | 1. Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education) Shandong University, Ji’nan 250061, China; 2. Institute of Machinery Manufacturing Technology, China Academy of Engineering Physics, Mianyang 621900, China |
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| Abstract: | In order to obtain good welding quality, it is necessary to apply quality control because there are many influencing factors in laser welding process. The key to realize welding quality control is to obtain the quality information. Abundant weld quality information is contained in weld pool and keyhole. Aiming at Nd:YAG laser welding of stainless steel, a coaxial visual sensing system was constructed. The images of weld pool and keyhole were obtained. Based on the gray character of weld pool and keyhole in ... |
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| Keywords: | laser welding keyhole weld pool edge image processing algorithm |
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