Instrumented clamping device and numerical simulations to study machining distortion

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TitreInstrumented clamping device and numerical simulations to study machining distortion
Type de publicationJournal Article
Year of Publication2019
AuteursCherif I, Cotton D, Poulachon G, Outeiro J, Brosse A, Kornmeier JRebelo
JournalINTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
Volume105
Pagination3093-3103
Date PublishedDEC
Type of ArticleArticle
ISSN0268-3768
Mots-clésMachining, numerical simulation, Part distortion, residual stresses
Résumé

Machining part distortion is due to residual stresses induced by previous manufacturing processes. This study aims to evaluate the influence of machining conditions on AISI 316L plate distortion. Therefore, a special experimental device with force sensors integrated in the clamping system and numerical model of distortion were developed. Residual stresses due to previous machining processes were measured using a layer removal method and neutron diffraction technique. Then, distributions of these residual stresses were integrated in a developed model of machining distortion, which considers the clamping and machining sequence effects after each stage of the toolpath. A comparison of the experimental and numerical results revealed that the finite element method can adequately predict machining distortion. The results also suggest that clamping and machining sequence can affect part distortion.

DOI10.1007/s00170-019-04510-7, Early Access Date = {NOV 2019