Paper Title:
Elliptical Ultrasonic Assisted Grinding (EUAG) of Monocrystal Sapphire – Wear Behaviors of Resin Bond Diamond Wheel
  Abstract

This paper describes the wear behaviors of a resin bond diamond wheel in elliptical ultrasonic assisted grinding (EUAG) of monocrystal sapphire. The EUAG is a new grinding method proposed by the present authors in which an elliptical ultrasonic vibration is imposed on the workpiece by using an elliptical ultrasonic vibrator. In our previous work, an experimental apparatus mainly composed of the vibrator was produced and grinding experiments were conducted involving sapphire workpiece. In this paper, further investigations focusing on the wear behaviors of resin bond diamond wheel in EUAG of sapphire were carried out experimentally. The obtained results showed that: (1) the wheel wear process can be divided to three regions according to the variation trend of grinding forces, i.e., an initial region, a steady region, and a deteriorated region; (2) in the initial and steady regions, the grinding forces and the ratio of the normal grinding force to the tangential grinding force in EUAG are much smaller than that in conventional grinding (CG), but in deteriorated region, the grinding forces in EUAG are increased significantly up to be larger than that in CG whereas the grinding forces ratio has few difference between those in EUAG and CG; (3) in all the regions, the work-surface in EUAG is much smoother than that in CG whereas the wheel wear has little influence on the work-surface roughness; (4) the wheel wear in CG is mainly caused by the attrition wear and the macro-fracture and pullout of abrasive grains, while in EUAG by the micro-fracture and cleavage of abrasive grains.

  Info
Periodical
Advanced Materials Research (Volumes 126-128)
Edited by
Yunn-Shiuan Liao, Chao-Chang A. Chen, Choung-Lii Chao and Pei-Lum Tso
Pages
573-578
DOI
10.4028/www.scientific.net/AMR.126-128.573
Citation
Y. B. Wu, Z. Q. Liang, X. B. Wang, W. M. Lin, "Elliptical Ultrasonic Assisted Grinding (EUAG) of Monocrystal Sapphire – Wear Behaviors of Resin Bond Diamond Wheel", Advanced Materials Research, Vols. 126-128, pp. 573-578, 2010
Online since
August 2010
Export
Price
$35.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Shigeki Okuyama, Takayuki Kitajima, Akinori Yui
Abstract:A grain-arranged diamond wheel is developed and grinding performance of the wheel against industrial pure aluminum, one of the most...
33
Authors: Yan Yan Yan, Bo Zhao, Jun Li Liu
Abstract:ZTA ceramics is a kind of high performance structural ceramics, and its surface/subsurface damages after machining have great effect on...
619
Authors: Peng Yao, Nobuhito Yoshihara, Nobuteru Hitomi, Ji Wang Yan, Tsunemoto Kuriyagawa
Abstract:There is a demand for high-efficiency and high surface integrity grinding of fused silica. Ductile grinding is an ideal method for producing...
21
Authors: Xiang Dong Li, Quan Cai Wang
Abstract:In this paper, the characteristic of grinding force in two-dimensional ultrasonic vibration assisted grinding nano-ceramic was studied by...
204
Authors: Bo Zhao, Jun Jin Ma, Ping Yan Bian, Yu Li
Abstract:In this paper the relationship of the efficiency of ultrasonic grinding and abrasive movement are studied. Ultrasonic grinding grain...
4103