Title: Non-dimensional analysis of shot peening by means of DoE

Authors: S. Baragetti, A. Terranova

Addresses: Dipto Meccanica, Politecnico di Milano, Piazza L. da Vinci, 32-20133 Milano, Italy. Dipto Meccanica, Politecnico di Milano, Piazza L. da Vinci, 32-20133 Milano, Italy

Abstract: Shot peening is widely used to improve the fatigue properties of mechanical components cyclically loaded; the benefits of the treatment, mainly due to the compressive residual stress field induced in the surface layers of material, depend on the correct choice of the peening parameters. ||Design of Experiments|| (DoE) was applied to the results obtained from the numerical simulation of shot peening (impact of one or more spheres on smooth steel targets), and used to choose the best levels of the treatment parameters in a cheap and fast way. Non-dimensional parameters were defined and used to generalise the results obtained from the analyses carried out on steel targets and this enabled the choice of the peening parameters for different treatment conditions and several treated materials.

Keywords: shot peening; Design of Experiments; non-dimensional parameters; parameters optimisation.

DOI: 10.1504/IJMPT.2000.001241

International Journal of Materials and Product Technology, 2000 Vol.15 No.1/2, pp.131-141

Published online: 01 Jul 2003 *

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