Friction And Wear Energy Density Variation Characteristics And Process Control Method Of High Feed Milling Cutter Tooth

The high feed milling cutter is a typical high efficiency cutter tooth,the instantaneous frictional wear energy density of the flank of cutter tooth is one of the main elements to reveal the dynamic relationship between instantaneous friction and wear of the rear tool face of the milling cutter.It is also an important indicator for judging the frictional wear state of t flank of cutter tooth.To study the method of solving the instantaneous frictional wear energy density of the flank of cutter tooth of milling cutter and to obtain its dynamic distribution characteristics,which is of guiding significance to reveal the formation and evolution of the wear process of flank of cutter tooth of high-feed milling cutter.Supported by the National Natural Science Foundation project "Multi-scale Coupling Mechanism of Nonlinear Frictional Dynamic Wear of High Energy Efficiency Milling Cutter(51875145)" and the Heilongjiang Natural Science Foundation Key project "Ordered Multi-source Flow Evolution Mechanism and Key Technologies of High Energy Efficiency Milling Heavy Machine Tool Basic Components(ZD2020E008)",this paper is designed to provide the following information,in order to improve the friction and wear resistance of the tool face,the nonlinear characteristics of friction and wear of the tool face were studied based on milling experiments.Study of the transient cutting position of tool teeth under the effect of cutter tooth error and milling vibration,modeling the instantaneous position of the flank of cutter tooth and the machining transition surface,to obtain the instantaneous equivalent force and cumulative wear depth characteristics of flank of cutter tooth with time,to establish the distribution function of the instantaneous wear depth of the flank of cutter tooth microelement,to study the effect of the instantaneous wear depth on the cutting edge and flank of cutter tooth,and to construct a model for solving the instantaneous wear volume of flank of cutter tooth by the micro-element method.Building the model to solving the instantaneous frictional characteristic variables on the flank of cutter tooth,and the instantaneous frictional energy consumption and accumulated frictional energy consumption of flank of cutter tooth are proposed to reveal the variation characteristics of the instantaneous frictional speed,instantaneous frictional stress and instantaneous frictional energy consumption of flank of cutter tooth with the contact angle of the cutter and the cutting cycle of the milling cutter under the action of the cutter tooth error and milling vibration,and the experimental results of the wear of the flank of cutter tooth is used to verify the results of the accumulated frictional energy calculation.The method of solving the instantaneous frictional wear energy density and average frictional wear energy density on the flank of cutter tooth is proposed to reveal the dynamic relationship between instantaneous frictional energy consumption and instantaneous wear volume on the flank of cutter tooth,and based on the results of variability analysis and response surface analysis of frictional wear energy density of cutter teeth,the variation characteristics of instantaneous frictional wear energy density on the flank of cutter tooth and the identification method of its influencing factors are proposed.On this basis,the frictional wear energy density control model and constraints are studied,the process control procedure is proposed,the corresponding process scheme is obtained,and experimental verification is carried out.