| 激光深熔焊光致等离子体行为与控制 |
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| 引用本文： | 史俊锋,肖荣诗,左铁钏. 激光深熔焊光致等离子体行为与控制[J]. 激光杂志, 2000, 21(5): 40-42 |
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| 作者姓名： | 史俊锋 肖荣诗 左铁钏 |
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| 作者单位： | 北京工业大学国家产学研激光技术中心,北京 |
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| 基金项目： | 国家自然科学基金，北京市科技新星计划项目资助 |
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| 摘 要： | 激光深熔焊中光致等离子体的行为影响焊接质量和焊接效率，本文论述了等离子体在激光溶熔焊中的形成机制与存在形式。讨论了不同功率密度时，等离子体对能量耦合的影响，分析了其对激光束的作用，特别是对光束的折射。归纳了工程中等离子体控制的几种方法和辅助气体控制等离子体的理论研究现状。
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| 关 键 词： | 激光深熔焊接 光致等离子体 形成机制 |
The behavior and control of laser induced plasma during laser penetration welding |
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| Shi Junfeng,Xiao Rongshi,Zuo Tiechuan. The behavior and control of laser induced plasma during laser penetration welding[J]. Laser Journal, 2000, 21(5): 40-42 |
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| Authors: | Shi Junfeng Xiao Rongshi Zuo Tiechuan |
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| Abstract: | Laser induced plasma significantly effects the process stability and efficiency during laser penetration welding.The generation and forms of the laser induced plasma,their influences on the energy coupling and the refraction on the laser beams are discussed.Methods to control the plasma are summaried,and the roles of assistant gas are analyzed in details. |
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| Keywords: | laser penetration welding plasma assistant gas refraction |
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