Journal
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
Volume 25, Issue 5-6, Pages 460-465Publisher
SPRINGER LONDON LTD
DOI: 10.1007/s00170-003-1993-3
Keywords
burnishing; contact modeling; finite element; Hertz theory; machining; plasticity; residual stresses; roughness
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The aim of this study is to analyze the evolution of surface roughness finished by burnishing. Burnishing is done on a surface that was initially turned or turned and then ground. In a previous work, we have defined an analytical model to determine the R-t factor of burnished surfaces in relation to the feed f, the material displacement delta and the roughness R-ti of the initial surface. delta has been calculated using the Hertz contact theory which supposes that the behavior of the workpiece material is elastic. Hence, in this paper, we have defined a finite element model in which the elasto-plastic behavior of the piece is taken into account to determine the material displacement S. This model has also permitted the calculation of the residual stresses related to the macroscopic contact geometry. Good correlations have been found between experimental and finite element results when burnishing an AISI 1042 steel.
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