3D Numerical Prediction of Residual Stresses in Turning of 15-5PH

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This study presents the development of a numerical model for the prediction of residual stresses induced in finish turning of a 15-5PH martensitic stainless steel. This methodology uses a hybrid approach combining experimental results (friction and orthogonal friction tests) with a numerical model. The numerical model simulates the residual stresses generation by applying cyclic equivalent thermo-mechanical loads onto the machined surface without modeling the chip removal process. The three-dimensional approach enables to study the influence of the turning passes interactions. It has been shown numerically that the periodicity of loading leads to a significant heterogeneity of material solicitations. Moreover, overlapping of passes accentuates these effects. So, the model highlights the necessity of a multi-passes simulation to reach a constant evolution of residual stresses along the feed direction. In addition, experimental measurements obtained by X-Ray diffraction have been compared with numerical results to validate the model.

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Periodical:

Edited by:

J.C. Outeiro

Pages:

411-420

Citation:

A. Mondelin et al., "3D Numerical Prediction of Residual Stresses in Turning of 15-5PH", Advanced Materials Research, Vol. 223, pp. 411-420, 2011

Online since:

April 2011

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$38.00

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