High Speed Milling Cutter Safety Recession And Damage Mechanism Under The Stress Wave

When high speed milling cutter in milling,high speed,cutting speed,the other due to the characteristics of high speed milling cutter interrupted cutting when the cutting especially when they cut and cut out the impact of the collision between the blades and workpiece forming obvious effect,and form a stress wave propagation in the internal components together,causing hidden safety problems,and increases the possibility of sudden accident,makes it hard for processing the efficiency of production safety guarantee.In the national natural science fund project "efficient milling cutter with wave mechanics damage mechanism and the method of multi-scale collaborative design(51375124)",supported by recession based on high speed milling cutter safety problem,key research under the effect of stress wave in the high speed milling cutter safety decline characteristics of components,and the declining influence security research the internal relation between the characteristic parameters of the process,and points out that the damage to the formation of safety marks the end of the recession,and the cross dimension analysis method to study the formation mechanism of injury.By high speed milling cutter safety components and the matching relation between particle movement characteristics,solving ISO15641 original cutter safety evaluation method to judge the safety recession dynamic process.High-speed milling cutter component security particle motion representation method of recession,according to configuration theory and the establishment of Lagrange energy function,reveal the dynamic characteristics of high speed milling cutter safety recession,unable to quantitative des-cription of the previous security recession process were solved problems,so as to realize high speed milling cutter safety recession unified expression of physical process.Put forward the apparent effect of milling cutter of stress wave,and gives the stress wave and unified expression of mill load,it is difficult to solve safety problems existing in dynamic loading performance problems.Stress wave is analyzed on the influence of the recession on the safety of high speed milling cutter features,points out that the cutter material attributes to determine position and the intensity of the stress wave and the configuration of the formation of the initial energy,cutting tool component structure determines the transmission of stress wave and the configuration of energy change,to solve the uncertainty relation between the load and structure materials.Combining cutter components configuration with security change the characteristics of the recession,the stress wave is given under the action of high speed milling cutter safety discriminant method of recession.Control high-speed milling cutter safety decline rate of different performance,dominant strain rate of performance security recession and control respectively dominant hidden safety decline rate of particle motion and the relationship between the stress wave propagation rate,through grey correlation analysis method,gives the different rate of coupling and competition mechanism.Based on stress wave propagation theory,identify the damage location,combined with the molecular dynamics simulation,classification and identify the damage location and type of high speed milling cutter components,analysis and summary of high speed milling cutter safety components of recession and damage identification and control method,and through the high speed cutting experiments to validate its effect.