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Shrinkage porosity prediction empowered by physics-based and data-driven hybrid models

Article dans une revue avec comité de lecture
Author
ccNOURI, Madyen
ccARTOZOUL, Julien
CAILLAUD, Aude
211916 Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]
ccAMMAR, Amine
ccCHINESTA SORIA, Francisco
KÖSER, Ole
564849 ESI Group [ESI Group]

URI
http://hdl.handle.net/10985/23271
DOI
10.1007/s12289-022-01677-5
Date
2022-03-25
Journal
International Journal of Material Forming

Abstract

Several defects might affect a casting part and degrade its quality and the process efficiency. Porosity formation is one of the major defects that can appear in the resulting product. Thus, several research studies aimed at investigating methods that minimize this anomaly. In the present work, a porosity prediction procedure is proposed to assist users at optimizing porosity distribution according to their application. This method is based on a supervised learning approach to predict shrinkage porosity from thermal history. Learning data are generated by a casting simulation software operating for different process parameters. Machine learning was coupled with a modal representation to interpolate thermal history time series for new parameters combinations. By comparing the predicted values of local porosity to the simulated results, it was demonstrated that the proposed model is efficient and can open perspectives in the casting process optimization.

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