The Research Of Residual Stress On The Surface Of Internal Gear Power Honing Workpiece

When the gear is being machined,the elastic-plastic deformation will occur near the contact part between the workpiece gear and the honing wheel.This deformation is the superposition of various reasons,and there will be residual stress on the workpiece surface after machining.The residual stress will seriously affect the performance,fatigue strength,dimensional stability and wear resistance of gears,and is closely related to stress corrosion cracking.At present,there are few studies on the internal teeth strong honing technology in China.In order to grasp the rule of the influence of the process parameters of internal gear honing on the residual stress on the workpiece surface,this paper studies and analyses the model of internal gear honing,the generation of residual stress in honing,the dynamic simulation of internal gear honing and the influence of the honing speed of abrasive particles on the residual stress in micro-scale,so as to provide a theoretical basis for controlling the residual stress on the gear surface in actual honing process.? This paper will mainly focus on the following aspects:1.Based on the principle of interlaced helical gear space transmission and gear space meshing,the mathematical expression of the tooth surface of the internal gear is derived.In MATALB,the numerical calculation and graphic display function are used to parameterize the tooth surface of the internal gear wheel modeling.2.The mechanism of residual stress in the processing of caries was studied,and the influence of various factors on the residual stress of boring was analyzed.3.For the machining principle of internal meshing strong molars,the dynamic simulation of finite element is used to analyze the effects of different radial forces,relative boring speed and shaft angle on the residual stress of the workpiece gear surface,and the simulation model is verified by experiments.4.Under the microscopic analysis,the boring characteristics of abrasive grains and workpieces were simulated and analyzed.