Research on Ultrasonic Vibration Assisted Thread Milling Processing Simulation of CFRP

Threaded connections are widely used in many fields such as national defense, aerospace, energy and chemical industry, so the processing quality directly affects the safety performance of mechanical equipment. As a typical hard and brittle material, Carbon fiber-reinforced plastic (CFRP) has good properties such as high hardness, high wear resistance and corrosion resistance. It is precisely because of these good properties that delamination defects, burrs and high surface roughness are prone to occur during thread processing Degree and other shortcomings. Traditional processing methods can no longer guarantee the processing quality of workpieces. This article uses CFRP ultrasonic vibration auxiliary thread milling as research, establish a motion trajectory model of milling knife tip, simulation research on thread milling processing, establish a macro and micro thread processing simulation model, perform comparative simulations with and without ultrasound, inquiry the effects of ultrasound parameters on the quality of processing. Ultrasonic processing reduces the cutting force of the workpiece, reduces the burrs, tears and layered defects brought by ordinary processing, and improves the quality of the processing of the workpiece.