Analysis Of Machining Vibration Under Different Milling Parameters Based On CAE

Vibration phenomenon during processing is a difficult problem to solve.Once the configuration of the process system is finalized,it is difficult for conventional methods to determine the factors that cause vibration.The problems it causes are multiple:light damage to the machining surface of the part,causing the processing size and roughness of the part to exceed the design requirements;heavy damage to the tool and fixture,resulting in the failure of normal production;a deeper level of damage is damage to precision Processing equipment,resulting in shortened or terminated equipment life cycle.The research content of this subject is how to use the CAE analysis in the designed plane milling process system to experiment the vibration patterns of the machining system under different spindle speeds,knife intakes and feed speeds.In order to avoid the vibration problems that may be caused by inappropriate processing parameters and destroy the processing quality of the workpiece surface.In this paper,the process system of thin-plate parts that are prone to cutting vibration during vertical milling is selected as the research carrier,and the problems of workpiece clamping and tool selection are studied;the current computer simulation results can more appropriately describe the actual processing process Next,use the Deform-3D software to analyze the stress of the cutting process and obtain the cutting force data.The data is analyzed numerically,and the change law of cutting force generated under different processing parameters of the research object is summarized.Finally,these cutting forces are applied to the tool and the workpiece respectively,and the CAE module of UG NX software is used to analyze the effects of these cutting forces on the tool and the workpiece,such as vibration displacement and resonance.In the research process,in order to have a more intuitive performance understanding of the two components of the machining system,before the vibration response calculation,use the UG NX software response simulation function to perform modal analysis on the tool and part;then import the Deform-3D analysis to obtain Cutting force data,analyze the transient response of the tool and part separately,and get the result of the worst processing quality of the workpiece under which processing parameters;finally,the cutting experiment is carried out to collect the experimental data and compare it with the simulation analysis result to verify the reasonableness of the analysis result Sex and accuracy.Through the early simulation analysis and later verification of the vibration problem of the processing system,the applicability of the CAE conclusion is proved,which can be used in actual production to avoid processing vibration in advance,thereby shortening the process development cycle and improving the competitiveness of the enterprise.