Radial Directional Vibration-Assisted Ductile-Mode Grinding of Engineering Ceramic

Article Preview

Abstract:

Engineering ceramics have received significant attention in the recent years owing to their exceptional mechanical properties, which are expected to be beneficial for engineering applications. However, it has always been a great challenge to realize ductile-mode grinding in engineering ceramics, with one of the critical obstacles being the heat generation that limits the removal rate. As a result, thermal damages are often observed on the ground surfaces. This paper presents the ductile-mode grinding. In the process the grinding wheel is excited along the radial direction by applying an ultrasonic vibration of frequency is 38.5 kHz and amplitude of 0-2 μm. The wheel comes in contact with the Al2O3 ceramic at constant forces 18-24 N. Experimental results indicate that the ground surface is devoid of thermal damages, when removal rate of the vibration-assisted process is approximately 1.5 times higher than without vibration.Keywords: ductile-mode grinding, radial directional vibration, hard and brittle material, engineering ceramic, thermal damage

You might also be interested in these eBooks

Info:

Periodical:

Pages:

218-221

Citation:

Online since:

September 2014

Authors:

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] K Hirao and Y. Yoshizawa: Special Issue, The Latest Trend in Engineering Ceramics, Journal of the Japan Society for Abrasive Technology, 58, 3(2014), 146 (in Japanese).

Google Scholar

[2] K. Imai and H. Hashimoto: Grinding Force Criteria in Shear-Mode Grinding, Proceedings of the 13th Annual Meeting, The American Society for Precision Engineering, Vol. 18, p.136, (1998).

Google Scholar

[3] K. Imai and H. Hashimoto: Thrust Force Directional Vibration-Assisted Ductile-mode Grinding of Single-crystal Si, Advanced Materials Research Vols. 126-128, p.627, 2010/09.

DOI: 10.4028/www.scientific.net/amr.126-128.627

Google Scholar