Simulation Model of Workpiece Surface Morphology Considering Asymmetric Tool Wear
Tool runout and the resulting asymmetric tool wear have an extremely significant effect on the surface pro-file of micro-milled workpieces.This influence factor is fully considered and a micro-milled workpiece surface topography model including tool runout and asymmetric wear to accurately predict the surface cutting topography of micro-milled work-pieces is established.The effect of asymmetry of tool runout and wear on chip load is studied based on the residual cycloid equation of motion,and a chip load model is constructed.The role of chip load and tool wear on the cutting residual height of the bottom surface of the workpiece according to the minimum chip thickness and elastic recovery theory is explored,and a bottom surface cutting morphology model including tool runout and asymmetric wear by combining the chip load model is established.A three-dimensional point cloud simulation algorithm for the bottom surface morphology model is proposed.The 3D point cloud simulation algorithm of the bottom surface morphology model is proposed and experimentally verified,and the prediction error of the model is 10％～15％,which can accurately predict the cutting morphology of the bottom surface of the micro-milled workpiece.
micro-millingsurface appearancechip loadsurface residual height3D point cloud simulation
万方数据
维普
