Research On High Speed Face Milling Cutter Based On System Dynamic Design Technology

High speed cutting technology has incomparable superiority, such as high efficiency, high precision and high surface quality; it has been widely used in automotive, aerospace, mold and other manufacturing fields and has made significant technical and economic benefits. High speed cutter and its related technology which directly determine the efficiency, quality and security of high speed cutting are the foundation of the promotion and application of high speed cutting technology.High speed face milling cutter is the widely used high efficiency metal cutting tool, under the high speed, intermittent cutting conditions, shock and vibration caused by centrifugal force and dynamic cutting force are important factors affecting tool life, machining quality, productivity and the machine effectiveness of the high speed cutting, it is necessary to explore the dynamic characteristics of the high speed face milling cutter and its vibration mechanism for improving cutting quality and increasing machining efficiency.Based on the existing high speed milling mechanism, high speed milling cutter security requirements and study of the high speed cutter technology, this paper researches on high speed face milling cutter using system dynamic design technology, its major study are as follows:1. For the machining features of the high speed face milling cutter, establishes dynamic cutting force model and kinetics differential equations of the high speed face milling cutter, laid the foundation for the research of high speed face milling cutter dynamic characteristics.2. Through the research on dynamic forces in the machining process of high speed face milling cutter, makes the vibration model prediction of the high speed face milling cutter when the centrifugal force and dynamic cutting force play roles.3. To reduce the vibration amplitude of the cutter under the force of centrifugal force and dynamic cutting force, based on the cutting characteristics of the high speed face milling cutter, machining features and its security requirements, develop and design the high speed face milling cutter used to high speed machining aluminum alloy.4. By finite element analysis technology, the performance of vibration reducing of the developed high speed face milling cutter has been predicted. Deformation of the high speed face milling cutter under the centrifugal force has been analyzed so that the structure of the cutter will be more reasonable.5. Evaluate the dynamic cutting performances of the high speed face milling cutter based on its dynamic balancing test and cutting performance test.The research shows that controlling the imbalance of the cutter, improving the balancing quality grade of the cutter, reasonable design of the tooth pitch, reducing the amplitude of the high speed face milling cutter under the role of dynamic cutting forces can make the cutter have good dynamic cutting performance, the method is practical.