Title: Investigation of wheel wear mechanisms during grinding optical glasses through statistical analysis of wheel topography

Authors: Peng Yao; Yadong Gong; Takeshi Matsuda; Tianfeng Zhou; Jiwang Yan; Tsunemoto Kuriyagawa

Addresses: School of Mechanical Engineering and Automation, Northeastern University, 3-11 Wenhua Road, Heping District, Shenyang 110819, China. ' School of Mechanical Engineering and Automation, Northeastern University, 3-11 Wenhua Road, Heping District, Shenyang 110819, China. ' Yamagata Research Institute of Technology, 2-2-1, Matsuei, Yamagata 990-2473, Japan. ' Department of Mechanical Systems and Design, Tohoku University, 6-6-01 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8579, Japan. ' Department of Mechanical Systems and Design, Tohoku University, 6-6-01 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8579, Japan. ' Department of Mechanical Systems and Design, Tohoku University, 6-6-01 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8579, Japan

Abstract: The wheel topographies in the different stages during grinding fused silica and BK7 were measured on machine with a white light interferometer. Height parameters of 3D surface roughness, including maximum peak height, standard deviation, skewness and kurtosis, were proposed to evaluate the wheel wear mechanisms during grinding the two types of optical glasses. The results show that wheel wear mechanisms are essentially determined by different material removal modes. BK7 and fused silica were predominantly ground in ductile mode and brittle mode respectively. The grinding of BK7 mainly causes severe attritious wear of grains. During grinding fused silica, self-sharpening effect makes grinding sustain for a long time.

Keywords: optical glass grinding; wheel wear; on-machine measurement; statistical analysis; scanning white light interferometer; grinding wheel topography; 3D surface roughness; fused silica; material removal; ductile mode; brittle mode; self-sharpening.

DOI: 10.1504/IJAT.2012.046818

International Journal of Abrasive Technology, 2012 Vol.5 No.1, pp.33 - 47

Received: 21 Nov 2011
Accepted: 09 Jan 2012

Published online: 30 Jul 2014 *

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