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<0.6 μm.
关键词
CFRP/飞机蒙皮/恒力打磨/去除机制
Key words
CFRP/aircraft skin/constant force grinding/removal mechanism
维普
万方数据