Deformation Analysis And Experimental Study Of Thin-walled High-speed Milling

The thin-walled components are widely used in aerospace,electronic, die and mould industry. Generally, the NC milling is a typical machining technology for thin-walled components, especially the high-speed machining being widely used. Due to the low-rigidity, the deformation problem is the key factor that influencing the machining quality. So it has great theoretical significance and engineering valve for the prediction and improvement of the thin-walled components machining deformation.In this paper, a method combined experimental research and finite element analysis is adopted. The main research works include:1) The accuracy of the force model was verified by experiment. Considering the machining circumstances of the web thin-walled, a single-factor empirical milling force model within certain parameters scope was established based on the experimental research of milling force.2) The machining deformation rules of the frame thin-walled under different cutting conditions and different geometrical shape and dimension were analyzed by orthogonal experiment.3) The finite element analysis technology for the thin-walled components machining deformation was studied. The finite element model for the frame thin-walled machining deformation was established, and experiment was carried out on the same cutting conditions to validate the availability of milling force model and finite element simulation result. According to the simulation method, the machining deformation rules of the other thin-walled under different tool path and different geometrical shape and dimension were analyzed. Same guiding significance conclusions were gained.4) In order to achieve the high efficiency and high. precision of the thin-walled components, Error compensation strategy was provided to control the thin-walled machining deformation by summarizing the experimental research and finite element analysis.