基于铣削均匀性的切削参数优化.pdf

38 * 潘永智 艾 兴 赵 军 宋清华 : , , , , , , , : , , , Optimization of Machining Parameters Based on Milling Uniformity Pan Yongzhi Ai Xing Zhao Jun et al Abstract: The engagement beha ior between toolworkpiece during chip formation in high speed milling process was ana lyzed. A milling uniformity model was presented by terms of axial depthofcut and radial depthofcut. Based on the milling uni formity model, the optimal model of machining parameters was built, where the constraint was the constant metal remo al rate, and the optimized target was the milling uniformity coefficient. The milling uniformity and optimal model was alidated by means of highspeed milling experiments. For highspeed milling of aeronautical aluminum alloy 7050- T7451, it is ad antageous to impro e milling uniformity and decrease cutting force by using bigger axial depth of cut and smaller radial depth of cut. Keywords:highspeed milling , milling force, milling uniformity, helix angle 1 2 2 1 , [ 1] , 2000m/min , / , , 1 , , , , A , B CD , , , CDEF , , ; , EFG , , , , [6] , , , [2~ 4] , , , , , , [ 7] , 23 S , [ 5] ,