Ultrasonic-Assisted Microdrilling Study of SiC/Al Composites Based on ABAQUS/Explicit
SiCp/Al composites are prone to wear and even breakage of machining tools due to high surface hardness and mechanical strength,which affects the surface machining quality.Ultrasonic vibration-assisted cutting is used to improve the quality of microdrilling by applying specific parameters of pulse vibration to the surface of the workpiece.The simulation analysis of ultrasonic-assisted microdrilling of SiCp/Al composites based on ABAQUS/Explicit was carried out.The results of the study showed that after setting ultrasonic cutting,different tip working front angles were formed,which created many small-sized craters on the particle surface,causing crushing phenomena of many particles in the surface area and forming a machined surface with higher roughness.Lower cutting forces than conventional drilling were obtained at all tool tip points after setting ultrasonic conditions.When the radius was increased,the cutting speed continued to increase,which eventually caused an increasing cutting force.The study is applicable to other machining areas and has good value for general application.
NETL
NSTL
万方数据
维普
