| Summary: | 碩士 === 國立中正大學 === 機械工程系研究所 === 105 === In the cutting process, the unstable vibration usually lead to cutting tool wear, workpiece surface deterioration, and even affect the machine tool’s life. This phenomenon is called chatter. During the machining process, the processor is often worried about the chatter problem. In order to avoid the chatter, a chatter stabilization diagram is needed to predict the stability of the chatter.
The purpose of this thesis is to develop a virtual dynamic system of interpolation, servo and cutting module to predict the cutting force and influence in the cutting process. It is divided into three different parts. The first part is to establish a cutting mechanics model to simulate the phenomenon and size of cutting force during cutting and analyze the relationship between vibration and cutting force. The second part is to establish the cutting stability diagram. In order to avoid chatter, the processor always uses more conservative cutting parameters, so in order to find the limit cutting depth, this thesis establishes a cutting stability diagram. The third part is to discuss the effect of cutting force on the servo axis during the cutting process. By combine the cutting, interpolator and servo model to observe the influence of the cutting force on the servo axis. And with the first part of the time-domain cutting force simulation, the second part of the stability diagram, to find stable cutting parameters in order to enhance the cutting process in the finished surface precision.
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