航空叶片热障涂层激光清洗工艺及评价研究  

Study on Laser Cleaning Processing and Evaluation of Thermal Barrier Coating of Aero-Blade

作　　者：章易镰 冯杰才 郭双全 田应仲[1] Zhang Yilian;Feng Jiecai;Guo Shuangquan;Tian Yingzhong(School of Mechatronic Engineering and Automation,Shanghai University,Shanghai 200444,China;Shanghai Linshi Laser Technology Co.,Ltd.,Shanghai 201306,China;Chengdu Hangli(Group)Industrial Co.,Ltd.,Pengzhou 611936,Sichuan,China)

机构地区：[1]上海大学机电工程与自动化学院,上海200444 [2]上海临仕激光科技有限公司,上海201306 [3]成都航利(集团)实业有限公司,四川彭州611936

出　　处：《应用激光》2025年第2期98-113,共16页Applied Laser

基　　金：国家重点研发计划资助项目(2017YFB1105000)。

摘　　要：开展航空发动机涡轮导向叶片热障涂层激光清洗工艺特性及其评价方法研究,探讨激光平均功率、清洗速度、激光入射角、离焦量等激光工艺参数与清洗质量之间的关系,确定影响清洗质量的关键因素,并参照传统表面清洗方法的质量评价标准,建立激光清洗质量评价方法。研究表明,采用纳秒脉冲激光清洗技术,可以实现涡轮导向叶片表面热障涂层的有效清除。通过宏观表面清洁度、宏观表面状况、微观表面清洁度、微观表面状况4个维度,可以有效地评价叶片表面热障涂层激光清洗质量。离焦量、清洗速度和入射角度是影响叶片表面热障涂层激光清洗质量的3个关键因素。优化的叶片表面热障涂层激光清洗工艺参数为:激光平均功率为340 W,离焦量为2 mm,清洗速度为3 mm/s,线光斑宽度为8 mm,入射角度为90°,振镜速度为1500 mm/s。The laser cleaning processing characteristics and evaluation methods of thermal barrier coating on aeroengine guide blades were studied.The relationship between laser processing parameters such as laser average power,cleaning speed,laser incidence angle,defocus and cleaning quality was discussed.The key factors affecting cleaning quality in laser cleaning processing were invested.The quality evaluation standards of laser cleaning was established based on traditional cleaning methods.The results show that the thermal barrier coating on the surface of turbine guide vane could be effectively removed by nanosecond pulse laser cleaning technology.Through the four dimensions of macro surface cleanliness,macro surface condition,micro surface cleanliness and micro surface condition,the laser cleaning quality of thermal barrier coating on blade surface could be effectively evaluated.Defocus,cleaning speed and incident angle were the three key factors affecting the laser cleaning quality of thermal barrier coating on blade surface.The optimized laser cleaning processing parameters of thermal barrier coating on blade surface were as follows:the average laser power was 340 W,the defocus was 2 mm,the cleaning speed was 3 mm/s,the linear spot width was 8 mm,the incident angle was 90°,and the galvanometer speed was 1500 mm/s.

关 键 词：发动机叶片 热障涂层 激光清洗 清洗质量 

分 类 号：TG156[金属学及工艺—热处理] TB114[金属学及工艺—金属学]