Title: Kinematics of material removal process in aspheric surface generation on glass moulds

Authors: V.C. Venkatesh, P.S. Vichare, S. Izman

Addresses: Department of Mechanical Engineering, University of Nevada Las Vegas, 4505 Maryland Parkway, Las Vegas, NV 89154-4027, USA. ' Department of Mechanical Engineering, University of Bath, Bath, BA2 7AY, UK. ' University Technology Malaysia, 81310 UTM Skudai, Johor, Malaysia

Abstract: The kinematics of the grinding process, characterised by the study of topography of grinding wheel surface and mechanism of material removal, taking into account conformity between grinding wheel and glass mould have been described for aspheric surface generation on glass moulds. The grit depth of cut analysis explains the influence of the geometry of the conformity between wheel and glass mould, which leads to some parametric relations in the grinding process. Some important parametric relations are derived form the geometrical model of aspheric surface generation with cup diamond grinding wheels. Image analysis technique was effectively used to observe the grinding wheel topography and texture of the ground aspheric surface. The experimental results are confirming the parametric relationship obtained by the geometric model for aspheric surface generation.

Keywords: aspheric surface generation; glass moulds; diamond grinding; kinematics; material removal; grinding wheel topography; grinding wheel surface; depth of cut; surface texture; geometric modelling.

DOI: 10.1504/IJPTECH.2009.026377

International Journal of Precision Technology, 2009 Vol.1 No.2, pp.183 - 200

Available online: 08 Jun 2009 *

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