In order to eliminate the residual stress after machining and stabilize the dimensional accuracy of thin-walled components,the TC4 circular ring thin-walled components are taken as the research object,and the blind hole method and the accuracy stability criterion method are used to detect the residual stress and dimensional accuracy of TC4 circular ring thin-walled components before and after vibration aging.The orthogonal test is designed to carry out the influence analysis,and it is found that the influence of vibration aging process parameters on the residual stress elimination rate of TC4 thin-walled components is vibration frequency>vibration time>vibration stress.When the vibration frequency is 96Hz,the vibration stress is 40MPa and the vibration time is 40min,the residual stress elimination rate is 58.7%.The results show that vibration aging can effectively reduce the residual stress of TC4 thin-walled components.It can not only make the size of TC4 thin-walled components stable in a short time,but also make its dimensional accuracy basically unchanged during long-term placement.
维普
万方数据