Title: Formation and meaning of residual stress of ground surfaces

Authors: Frantisek Holesovsky

Addresses: Institute of Production Technology and Management, J.E. Purkyne University, Na Okraji 1001, Usti nad Labem 400 96, Czech Republic

Abstract: The single grain of grinding wheel acts on the workpiece surface in separated areas of the plastic deformation at the grinding. The elastic and consequently the plastic deformation of the surface run at the grains engagement. Simultaneously, the friction of the grain and material and elementary chip and grain influences the machined surface. The heat generation and high pressures follow these phenomena. The results are the rise of residual stresses, the changes of the hardness in the ground surface layer, respectively the structure changes. These changes form the initial parameters of a dynamical loading capacity of the ground surface. At the surface loading both the geometrical changes and changes in the surface layer proceed in the machine parts. The surface wearing, the clearances formation, respectively failures and part depreciation can be the final result of these changes.

Keywords: grinding; residual stress; surface hardening; loading capacity; surface change; surface quality.

DOI: 10.1504/IJCMSSE.2010.029682

International Journal of Computational Materials Science and Surface Engineering, 2010 Vol.3 No.1, pp.52 - 63

Published online: 01 Dec 2009 *

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