| 复杂曲面有色金属3维激光拼焊的跟踪控制研究 |
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| 引用本文： | 龚时华,喻俊峰,黄禹,杨建中,王平江.复杂曲面有色金属3维激光拼焊的跟踪控制研究[J].激光技术,2010,34(5):587. |
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| 作者姓名： | 龚时华 喻俊峰 黄禹 杨建中 王平江 |
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| 作者单位： | 1.华中科技大学, 制造装备数字化国家工程研究中心, 武汉, 430074 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 为实现复杂曲面有色金属高功率激光拼焊过程中3维拼缝的精确跟踪,采用拼缝实时测量并进行拼缝形变动态补偿的方法,开展了基于7轴联动的3维拼缝焊接-测量一体化控制算法和关键技术的研究,包括运动控制数学模型、焊接与测量路径规划、焊接过程的实时检测与动态补偿等,并用4kW光纤激光器进行了厚度3mm以下有色金属焊接试验,验证了所提出的算法。结果表明,研究的3维拼缝焊接-测量一体化控制系统能够快速、准确地实现3维拼缝的实时焊接与动态补偿,满足3维焊接的跟踪控制精度要求。
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| 关 键 词： | 激光技术 激光焊接-测量一体化 3维拼缝 动态补偿 跟踪控制 |
| 收稿时间： | 2010-05-10 |
Study on 3-D joint seam tracking control in non-ferrous metal complicated curve surface laser welding |
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| GONG Shi-hua,YU Jun-feng,HUANG Yu,YANG Jian-zhong,WANG Ping-jiang.Study on 3-D joint seam tracking control in non-ferrous metal complicated curve surface laser welding[J].Laser Technology,2010,34(5):587. |
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| Authors: | GONG Shi-hua YU Jun-feng HUANG Yu YANG Jian-zhong WANG Ping-jiang |
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| Abstract: | In order to realize 3-D joint seam tracking accurately in the process of non-ferrous metal complicated curve surface laser welding, the 3-D joint seam real-time measurement was adopted to compensate for the joint seam deformation dynamically. The control arithmetic and key technologies for 3-D seam welding-measuring integration control system were studied,including the mathematics model of motion control, the scheme of welding path and measuring path,the real time inspection and dynamic compensation in welding, etc.The proposed arithmetic was testified by the experiment in which the non-ferrous metal with less than 3mm thickness was welded by 4kW fiber laser. The test indicates that the 3-D joint seam welding-measuring integration control system can achieve the 3-D joint seam's online inspection, real time welding and dynamic compensation quickly and precisely, which satisfies the measuring system's precision requirement. |
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