军用飞机金属零件激光增材修复技术的研究进展
Research progress of laser additive repair technology for military aircraft metal parts
查看参考文献51篇
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文摘
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激光增材修复技术适用于军用飞机金属零件的快速高效修复,是延长飞行服役年限和提升自主航空维修能力的重要推力。本文介绍了选区激光熔化成形、激光直接沉积成形、激光熔覆以及激光-电弧复合增材制造等激光增材修复技术特点,阐述了激光增材修复过程中常见的塌边、表面球化、气孔以及裂纹等不同尺度缺陷类型并提出了相应的调控方法,总结了激光能量密度、搭接率、填充材料供给速度、保护气体流量、时间参数和扫描路径等激光增材修复技术工艺优化特点以及施加外加能场和优化设计专用填充材料改善修复性能。最后,列举了激光增材修复技术在飞机机翼梁、涡轮叶盘、单晶叶片以及起落架等金属部件维修中的应用,并对激光增材修复技术在辅助系统设计、多能场融合、评价标准制定以及可移动激光增减材修复设备研发等未来的研究重点和趋势进行了探讨。 |
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其他语种文摘
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Laser additive repair technology is suitable to repair the metal parts of military aircraft. It is an important thrust to prolong the flight service life and improve the ability of independent maintenance. This paper introduced the characteristics of laser additive repair technologies such as selective laser melting forming, laser direct deposition forming, laser cladding and laser arc composite additive manufacturing. The common types of defects with different scales, such as edge collapse, surface spheroidization, porosity and crack in the process of laser additive repair were described, and the corresponding control methods were proposed. The laser energy density, overlap ratio, feeding speed of filler materials, shielding gas flow, time parameters and scanning path of laser additive repair technology were summarized, and the repair performance was improved by the application of external energy field and optimization design of special filler materials. Finally, the application of laser additive repair technology in the maintenance of aircraft wing beams, turbine blades, single crystal blades, landing gear and other metal parts was listed. The future research trend of laser additive repair technology in auxiliary system design, multi energy field fusion, evaluation standard formulation was emphasized, the research and development of mobile laser additive repair equipment were discussed. |
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来源
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航空材料学报
,2023,43(1):39-50 【核心库】
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DOI
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10.11868/j.issn.1005-5053.2022.000076
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关键词
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激光增材修复
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军用飞机
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金属零部件
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航空维修
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地址
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湖南省飞机维修工程技术研究中心, 湖南省飞机维修工程技术研究中心, 长沙, 410124
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语种
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中文 |
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文献类型
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综述型 |
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ISSN
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1005-5053 |
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学科
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金属学与金属工艺 |
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基金
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湖南高新技术产业科技创新引领计划
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湖南省教育厅科学研究优秀青年项目
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文献收藏号
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CSCD:7441004
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