Please use this identifier to cite or link to this item: https://doi.org/10.1504/IJAT.2012.046829
Title: Analysis of surface and subsurface damage of micro-ground BK7 glass using on machine fabricated PCD micro-tool
Authors: Perveen, A.
Rahman, M. 
Wong, Y.S. 
Keywords: BK7 glass
Micro-grinding
SSD
Subsurface damage
Subsurface defect
Issue Date: May-2012
Source: Perveen, A.,Rahman, M.,Wong, Y.S. (2012-05). Analysis of surface and subsurface damage of micro-ground BK7 glass using on machine fabricated PCD micro-tool. International Journal of Abrasive Technology 5 (1) : 72-92. ScholarBank@NUS Repository. https://doi.org/10.1504/IJAT.2012.046829
Abstract: This paper presents the research results of the morphology of subsurface damage (SSD) in BK7 glass ground with on-machine fabricated PCD micro tool. Grinding generated damages are assessed and characterised using bonding interface sectioning technique combined with field emission scanning electron microscopy (FESEM). Both the damage depth and surface roughness are found to be influenced by the depth of cut, feed rate and spindle speed. Two major type of grinding damage have been identified likely chipping damage and micro-cracking damage. Lateral, median and cone cracks are found to be existed in the sub-surface. These crack size varies from below to above 1 ìm. The mechanism of damage nucleation and propagation are discussed also. Although the machined surface seems to show ductile mode behaviour even at higher material removal, analysis of subsurface damage shows that the material removal is a combined effect of grain dislodgement, micro-cracking and plastic deformation. Copyright © 2012 Inderscience Enterprises Ltd.
Source Title: International Journal of Abrasive Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/59530
ISSN: 17522641
DOI: 10.1504/IJAT.2012.046829
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