复合材料蒙皮的打磨工艺技术研究  

Research on Grinding Technology of CFRP Composite Aircraft Skin

作　　者：孙廉策 陈炳发[1] SUN Liance;CHEN Bingfa(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《机械制造与自动化》2024年第5期62-67,共6页Machine Building & Automation

摘　　要：为研究复合材料飞机蒙皮机器人恒力打磨过程中工艺参数对材料去除和表面质量的影响规律,搭建基于视觉引导的飞机蒙皮机器人恒力打磨系统,通过打磨实验结合有限元方法进行研究,分析不同打磨参数下的材料损伤机制。结果表明:影响加工表面质量的主要因素是磨粒尺寸,其次是打磨压力。在一定范围内,材料去除量跟打磨压力、磨具转速成正相关。建立CFRP材料去除模型,确定最优参数组合,通过实验拟合出面向CFRP的材料去除系数,设计实验对材料去除模型进行验证,在保证Ra<0.6μm的基础上实现了蒙皮材料的快速均匀去除。In order to study the influence of process parameters over material removal and surface quality in the process of robot constant force grinding of composite aircraft skin,a robot constant force grinding system of aircraft skin based on visual guidance was built,and with grinding experiments and by finite element method,the material damage mechanism under different grinding parameters was analyzed.The results show that gain size is the main factor affecting the quality of machined surface,followed by grinding pressure as the secondary factor,and in a certain range,material removal is positively correlated with grinding pressure and grinding speed.Thus,the CFRP material removal model was established,the optimal parameter combination was determined,the CFRP-oriented material removal coefficient was fitted through experiments,the material removal model was verified by design experiments,and the fast and uniform removal of skin materials was realized on the basis of machining roughness<0.6μm.

关 键 词：CFRP 飞机蒙皮 恒力打磨 去除机制 

分 类 号：TH161.1[机械工程—机械制造及自动化]