Research on bionic design of cylindrical milling cutter based on the curvilinear configuration of the rake face of beaver teeth

Bionic design of cutting tools to reduce working resistance and energy consumption has always been a concern of people. The curve of the rake face of beaver teeth is fitted, and its general expression is obtained. This curvilinear function is used in the configuration design of the bionic alignment of the rake face of cylindrical milling cutter, and the bionic curvilinear configuration rake face cylindrical milling cutter is designed. By constructing a three-dimensional milling simulation model of a cylindrical milling cutter, the cutting performance of a cylindrical milling cutter with a bionic collinear configuration and a cylindrical milling cutter was analyzed by comparing the milling simulation with flat front face in different combinations of front face collinear parameter values. The results show that the designed bionic collinear configuration front face cylindrical milling cutter exhibits certain force saving effect and is verified by right angle free cutting experiments, but its drag reduction performance is affected by the parameter values of the collinear. The optimized parameter values of the front face collinear of the tool with a certain side draft are obtained by genetic algorithm combined with finite element simulation analysis, and the optimal combination of collinear parameter values is obtained. The results of simulation analysis prove that the optimisation method is effective. Finally, this paper builds an experimental validation platform to transform milling machining with variable cutting thickness into turning machining with uniform thickness using an equivalent uniform cutting thickness model. The results of the simulation experiments are effectively verified by the right-angle free cutting experiments, and this study will open up new design ideas for the optimal design of the conformation of cylindrical milling cutters.