摘要
Abstract
The five-axis machining process of thin-walled blades is explored,and experiments are designed to discuss the influence of rake angle on the machining deformation of thin-walled blades.Using NX software,a thin-walled blade model was established by importing point sets,fitting curves,generating surfaces,synthesizing solids and rounding corners.The machining process is set based on this model,and flat end mills are used for side milling in the rough machining stage,and ball end mills are used for point milling in the semi-finishing,finishing and corner cleaning stages.Taking the rake angle as the only variable,the rake angle of the ball-end milling cutter is set to 5°,10°,15°,20°,25° and 30° respectively to explore the machining deformation under different inclination angles.The results show that the larger the inclination angle of the tool axis,the smaller the machining deformation.However,when the inclination angle exceeds 20°,the effect of increasing the inclination angle on the machining deformation is not obvious.It is appropriate to set the inclination angle of the tool axis to 15°～20° in actual machining.关键词
薄壁叶片/五轴加工/球头铣刀/加工变形/刀轴倾角Key words
thin-walled blade/five-axis machining/ball-end milling cutter/machining deformation/rake angle分类
矿业与冶金
