Finite Element Analysis Of Torsion Deformation In Wheel Retainer Rolling

Wheel retaining is an important part of automobile wheel.In the wheel assembly,the wheel ring and the wheel rim with the tire in the wheel rim waist,to ensure the wheel performance.However,in the actual production process of the baffle ring,due to its special shape of cross section and complex rolling process parameters,the uneven deformation of the rolled piece is easy to cause the rolling piece to produce torsion.This project mainly USES finite element software to study the effect of process parameters on the rolling piece deformation and torsion.Based on retaining ring groove is complex,specifications,etc.,combining with manufacturer in 7.00 T type of retainer,for materials,experiment on the Q345 in Gleeble-2000 sample for single channel time compression experiments on the temperature change of stress and strain curve and converted into real stress-strain curve,and on the basis of steel pass design,with the help of CAD to determine pass the neutral line relationship with the relative position of rolling line,reasonably configure rolled piece on the roll.The model was preprocessed by the finite element software ABAQUS,and the elastic-plastic model of the baffles was established.In view of the torsion problem and deformation law of the retaining ring during forming,the effects of roll warp,rolling speed and hole deflection Angle on the deformation and torsion of the rolled part are mainly considered.By comparing the simulation results of the orthogonal test with the cross section area of the baffle ring stipulated by the manufacturer's process regulations,the results show that the error of the simulation results of the orthogonal test is about 2%,and the simulation process is basically in line with the actual rolling situation.According to the analysis of variance of orthogonal test,the main and secondary order of the influence of each factor on the torsion of the rolled part can be obtained: the deflection angle of groove>motor speed>diameter of roll.And through curve fitting that pass deflection Angle and motorspeed and the roll diameter on the influence of deformation to reverse a polynomial relationship,secondly the impact on the deformation and torsion by building a mathematical expression of motor speed and roll diameter,and through the regression analysis model for the most hours in ? respectively calculate in the motor speed of 540r/min,roll ? 354 mm in diameter,pass deflection angle of 13.78°of the influence of process parameters on deformation under the condition of torsion is minimal.Through simulation verification again and compared with the orthogonal experiment results that the process parameters in roll ? 354 mm in diameter,the motor speed of 540 r/min,pass for 13.78° deflection Angle influence on deformation and torsion is minimal.Through the analysis of the results of orthogonal test and curve fitting,it is found that the combination of process parameters has the least influence on the deformation and torsion of rolled parts.According to the analysis of variance,the effect of hole deflection Angle on deformation torsion is the most significant,while the effect of roll diameter and motor speed on deformation torsion is not obvious.