Abstract：With the development of aerospace, high-speed trains, bridges and other industries in China, a large number of light-weight and high-strength metal alloy or composite materials will be widely used, which requires the use of large-diameter and high-strength rivets for plate riveting to achieve effective assembly and connection of large-scale structural parts. However, the traditional riveting technology has some quality problems, such as the difficulty of forming rivets, the easy cracking of upsets, and the difficulty of controlling interference fit. Introducing the ultrasonic vibrationassisted plastic processing technology into the traditional press riveting process, which helps reduce the metal deformation resistance and improves the forming performance, is expected to improve the above problems. In this paper, ABAQUS finite element analysis software is used to simulate the process of TA1 countersunk rivet traditional press riveting and ultrasonic vibration-assisted riveting of double-layer C45 plate, analyze the deformation process of plate and rivet, and compare the factors that affect the riveting quality of the joint, such as riveting force, shear stress, residual stress and interference. The results show that ultrasonic vibration-assisted riveting can significantly reduce the riveting pressure, the shear stress and residual stress of the rivet, so that the riveting piece can obtain a uniform and reasonable amount of interference, thereby effectively improving the riveting quality
2020, 
