Analysis of Cutting Force and Residual Stress in Ultrasonic Elliptic Vibration Milling of Titanium Alloy
Milling process has a place in the manufacturing field for its high surface processing quality.In order to improve milling precision,elliptic vibration was introduced to assist machining,and the cutting force and residual stress characteristics of milling titanium alloy were analyzed.The results show that the average radial cutting force decreases when the additional amplitude is increased,which is beneficial to strengthen the ultrasonic ellipsometer milling,shorten the machining cycle obviously,and decrease the average cutting force accordingly.With the increase of ultrasonic amplitude,the residual stress increases,and the surface residual stress decreases continuously from the maximum point of the surface with the increase of depth,and a stable surface residual stress is obtained.This study lays a theoretical foundation for the optimization of ultrasonic elliptic vibration milling process.
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