Nano-zirconia Ceramic Ultrasonic Diamond Fly Cutting Removal Mechanism And Tool Wear Study

As science and technology continues to evolve and progress, application of hard brittle materials processing more and more widespread popularity, the processing of ceramics and other hard brittle materials raised higher and higher requirements, micro structure of the product and the precision requirements more harsh and strict. The traditional grinding hard and brittle materials processing parts method low efficiency, high cost, dust and waste pollution does not meet the needs of modern manufacturing development. So, explore a high-quality, high-precision, high efficiency of hard and brittle materials microstructure functional surface processing methods is an urgent task facing modern processing.In this paper, ultrasonic vibration theory, micro cutting force theory as the theoretical basis, Respectively, from the nano-zirconia in ultrasound-assisted diamond fly cutting(the ultrasound fly cutting) a study of the surface and removal mechanism under microscopic surface quality, from the microscopic point of view to study the influence of ultrasonic vibration of nano-zirconia ceramic processing characteristics, nano-zirconia ceramic ultrasonic precision machining and efficient new ways to fly cutting provides theoretical basis and practical experience. The main contents are as follows:(1) For the processing of nano-zirconia ceramic objects, Based on ultrasonic vibration theory. Analyzed from the point of view of the workpiece particle kinematics ultrasound-assisted diamond fly-cutting system inspired by ultrasonic vibrations generated and tip trajectory characteristics. Establishment of ultrasound-assisted diamond fly cutting tool tip trajectory equation, and summed up the ultrasonic vibration on the surface of the diamond fly cutting workers removal mechanism. Through ultrasound assisted diamond fly cutting test of nano-zirconia ceramic surface roughness of single factor to discuss the different processing parameters and ultrasonic vibration influence on surface roughness.(2) Based on the micro-cutting theory, vibration theory and ordinary diamond fly cutting force model, establishment of ultrasound-assisted diamond fly cutting process cutting force model, from the cutting force characteristics of the ultrasound-assisted processing characteristics of diamond fly cutting technology to interpret, through experiments to analyze the ultrasonic vibration and cutting parameters on cutting force.(3) Based on scanning electron microscopy, energy dispersive spectroscopy and super depth of field microscopy testing technique to study the mechanism of tool wear, the wear morphology and the effects of ultrasound assisted on tool life.