Study on the Simulation of Ultrasonic Vibration-assisted Milling on SiCp/Al

SiCp/Al composites have light weight and high hardness and are widely applied in aerospace, automobile, motor engineer and other fields. In this paper, the finite element model of a single particle is set up by finite element software. Comparing the influence of ultrasonic amplitude, it can be concluded that the application of ultrasonic vibration can change the moving trajectory of the tool and change the material removal principle, thereby reducing the defects on the machined surface. Through a series of experiment and surface measurement, the machined quality is improved a lot when the ultrasonic vibration is applied. When the ultrasonic amplitude is $0\ \mu\mathrm{m},\ 3\ \mu\mathrm{m},\ 6\mu\mathrm{m}$, the surface roughness is $0.183\ \mu\mathrm{m},\ 0.065\ \mu\mathrm{m},0.389\ \mu\mathrm{m}$. The surface defects are reduced greatly.