Research on Pulsed Laser Cleaning Process of Cessna 172 Engine Casing
YANG Wenfeng1, YANG Fan1, ZHU Xiaowei2, LI Shaolong1, FAN Zhanpeng3, LI Tianquan1
1. Civil Aircraft Composites Maintenance Research Center, Civil Aviation Flight University of China, Guanghan 618307, China;
2. Laser and Optoelectronic Intelligent Manufacturing Research Institute, Wenzhou University, Wenzhou 325035, China;
3. Aircraft Repair & Overhaul Plant, Civil Aviation Flight University of China, Guanghan 618301, China
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/cm2 and the scanning speed is 1600 mm/s, the paint removal rate is 98.7%, the surface roughness Sa is 2.48 μm, 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.
杨文锋，杨帆，朱小伟，李绍龙，樊占鹏，李天权. 塞斯纳172飞机发动机机匣脉冲激光清洗工艺研究[J]. 航空制造技术, 2024, 67(5): 82-88.
YANG Wenfeng, YANG Fan, ZHU Xiaowei, LI Shaolong, FAN Zhanpeng, LI Tianquan. Research on Pulsed Laser Cleaning Process of Cessna 172 Engine Casing[J]. Aeronautical Manufacturing Technology, 2024, 67(5): 82-88.
2024, 
