Title: A geometric method for three-dimensional modelling of surface finish in grinding

Authors: A. Ghasempoor, Y. Yang, F. Xi

Addresses: Department of Mechanical and Industrial Engineering, Ryerson University, Toronto, Ontario, M5B 2K, Canada. ' Department of Mechanical and Industrial Engineering, Ryerson University, Toronto, Ontario, M5B 2K, Canada. ' Department of Aerospace Engineering, Ryerson University, Toronto, Ontario, M5B 2K3, Canada

Abstract: In this paper, a geometric method is presented for predictive modelling of surface finish in grinding. The chip removal process by successive grains is modelled as a three dimensional Boolean operation, from which the surface roughness is predicted. A solid modeller is used to model an individual chip as a partial ellipsoid. The measured topography of the grinding wheel, together with kinematic relationship in surface grinding, is used to determine the geometrical characteristics of the proposed ellipsoid. The surface roughness predicted by the model is compared with experimental results. The results show good consistency between the model and the actual surface properties.

Keywords: grinding; surface finish; solid modelling; 3D modelling; predictive modelling; chip removal; kinematics; grinding wheel topography; surface roughness.

DOI: 10.1504/IJMR.2007.015084

International Journal of Manufacturing Research, 2007 Vol.2 No.4, pp.389 - 402

Published online: 12 Sep 2007 *

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