塞斯纳172飞机发动机机匣脉冲激光清洗工艺研究  

Research on Pulsed Laser Cleaning Process of Cessna 172 Engine Casing

作　　者：杨文锋[1] 杨帆[1] 朱小伟 李绍龙 樊占鹏 李天权 YANG Wenfeng;YANG Fan;ZHU Xiaowei;LI Shaolong;FAN Zhanpeng;LI Tianquan(Civil Aircraft Composites Maintenance Research Center,Civil Aviation Flight University of China,Guanghan 618307,China;Laser and Optoelectronic Intelligent Manufacturing Research Institute,Wenzhou University,Wenzhou 325035,China;Aircraft Repair&Overhaul Plant,Civil Aviation Flight University of China,Guanghan 618301,China)

机构地区：[1]中国民用航空飞行学院复合材料研究中心,广汉618307 [2]温州大学激光与光电智能制造研究院,温州325035 [3]中国民用航空飞行学院飞机修理厂,广汉618301

出　　处：《航空制造技术》2024年第5期82-88,共7页Aeronautical Manufacturing Technology

基　　金：四川省科技厅重点研发项目(2021YFSY0025);四川省通用航空器维修工程技术研究中心研究项目(GAMRC2021YB07);大学生创新创业训练计划项目(S202110624168)。

摘　　要：针对航空发动机机匣表面除漆需求,采用纳秒脉冲激光开展了塞斯纳172飞机发动机机匣表面漆层的激光清洗研究。通过对机匣除漆区域的表面形貌及粗糙度进行分析,探究了激光能量密度与扫描速度对机匣表面漆层清洗效果的影响规律,确定了机匣激光除漆最佳工艺参数,并对机匣除漆后的表面质量、显微硬度及粗糙度进行综合评估。结果表明,能量密度和扫描速度均显著影响机匣除漆质量,能量密度18.33 J/cm^(2)、扫描速度1600 mm/s时,可实现除漆率98.7%,表面粗糙度S_(a)为2.48μm,机匣本身未损伤,表面显微硬度提升1.9%,满足机匣表面除漆质量要求。研究结果为发动机机匣激光除漆提供了理论与技术支持。In order to remove paint from aero-engine casing surface,a study on laser cleaning of Cessna 172 aircraft engine casing surface was carried out by using nanosecond pulse laser.By analyzing the surface topography and roughness of the paint removal area of the casing,the influence of laser energy density and scanning speed on the cleaning effect of the paint layer on the casing surface was explored,and the optimal process parameters of laser paint removal on the casing were determined.The surface quality,microhardness and roughness of the casing after removing paint were comprehensively evaluated.The results show that both energy density and scanning speed significantly affect the paint removal quality of casing.When the energy density is 18.33 J/cm^(2)and the scanning speed is 1600 mm/s,the paint removal rate is 98.7%,the surface roughness S_(a)is 2.48μm,the casing itself is not damaged,and the surface microhardness is increased by 1.9%,which meets the paint removal quality requirements of the casing surface.The research results provide theoretical and technical support for laser paint removal of engine casing.

关 键 词：航空发动机 激光除漆 表面形貌 显微硬度 除漆率 

分 类 号：V262[航空宇航科学与技术—航空宇航制造工程]