Tool Path Planning of Flank Milling for Impeller Blade by Cylindrical Cutter

A blade surface is established using three degree quasi-uniform b-spline interpolation with quadruple node based on the given data points.According to the method of two-point offsetting,the initial cutter location is determined,so that the tool path planning of flank milling for impeller blade using cylindrical cutter is studied.On that basis,overdetermined equations which are the surface of origin trajectory of cylindrical cutter axis approaching offset surface of impeller blade in a multi-point are established,and tool path optimization is complied by householder transformation used in solving least squares problem.The specific calculation result shows that the tool path planning of flank milling is efective for impeller blade using cylindrical cutter based on this operation process.