Study on the processing performance of 60% SiCp/Al composite materials assisted by longitudinal and torsional ultrasonic vibration milling.

Silicon carbide particle-reinforced aluminum matrix composites (SiCp/Al) have been widely used in many areas due to their good physical and mechanical properties. However, because the material contains SiC particles with high hardness, processing is difficult and the processing quality of milling is poor. Ultrasonic vibration-assisted longitudinal torsion milling (LTUVAM) has great advantages in cutting difficult materials because it can effectively reduce the cutting force and cutting heat and improve the surface quality of the workpiece. Therefore, the kinematic analysis of LTUVAM is carried out, the material removal mechanism of 60% SiCp/Al is studied by the method of simulation and experiment, and the effects of machining parameters on the cutting force, cutting heat, and surface quality of the material were analyzed and using the traditional milling (CM) compared. The simulation and experimental results show that LTUVAM can improve the particle crushing rate, effectively reduce the cutting force and cutting heat under the relevant parameters, and improve the surface quality. [ABSTRACT FROM AUTHOR]