Understanding of Ultrasonic Assisted Machining with Diamond Grinding Tool

• 作者: Hon-Zong Choi Kyeong-Tae Kim Kyung-Hee Park Seok-Woo Lee Young-Jae Choi Yun-Hyuck Hong
• 来源期刊: 现代机械工程(英文)
• 学科: 医学
• 关键词: ULTRASONIC Vibration GRINDING ALUMINA Ceramic GRINDING FORCES Surface ROUGHNESS
• 年，卷（期）: 2014,（1）
• 页码范围: 1-7
• 页数: 7页
• 分类号: R73

摘要

In this work, machining test was carried out in various machining conditions using ultrasonic vibration capable CNC machine. For work material, alumina ceramic (Al2O3) was used while for tool material diamond electroplated grinding wheel was used. To evaluate ultrasonic vibration effect, grinding test was performed with and without ultrasonic vibration in same machining condition. In ultrasonic mode, ultrasonic vibration of 20 kHz was generated by HSK 63 ultrasonic actuator. On the other hand, grinding forces were measured by KISTLER dynamometer. And an optimal sampling rate for grinding force measurement was obtained by a signal processing and frequency analysis. The surface roughness of the ceramic was also measured by using stylus type surface roughness instrument and atomic force microscope (AFM). Besides, the scanning electron microscope (SEM) was used for observation of surface integrality.