Airiti Library華藝線上圖書館 | 美容美髮公開資訊

由彭英翰著作·2014—碳化矽(SiC)是一種機械性質表現優異的先進陶瓷材料，其性質包括高硬度、耐高溫與化性穩定，常使用在處於嚴苛條件下之零組件。但其優異之機械性質同時使其 ...

Silicon carbide (SiC) is an advanced ceramic material with great mechanical properties, including high hardness, endurance of high temperature and chemical stability. Therefore, SiC often uses in extreme condition. But its great mechanical properties lead to difficulties of machining. The first purpose of this study is to investigate the material removal mechanism of ultrasonic-assisted machining (UAM) of SiC and understand what role is ultrasonic vibration. And second one is to discuss influence of various machining parameters. Last one is to bring up a strategy for better material removal rate (MRR) and workpiece quality. In this study, the ultrasonic spindle provides longitudinal vibration which is automatically resonating with tools and in the Z-axis direction of machine tool. According to studying results, abrasives path is wavy in drilling process due to the vibration of UAM. Because of the interactive influence bet...