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Study of the evolution of transport properties induced by additive processing sand mold using X-ray computed tomography

Article dans une revue avec comité de lecture
Auteur
MITRA, Saptarshee
ccRODRÍGUEZ DE CASTRO, Antonio
175453 Arts et Métiers ParisTech
COSTIN, Marius
40217 Laboratoire d'Intégration des Systèmes et des Technologies [LIST (CEA)]
222633 Département Imagerie et Simulation pour le Contrôle (CEA, LIST) [DISC (CEA, LIST)]
ccEL MANSORI, Mohamed
211915 Mechanics surfaces and materials processing [MSMP]
301080 Texas A&M University [College Station]
303092 Arts et Métiers Paristech ENSAM Aix-en-Provence

URI
http://hdl.handle.net/10985/17875
Date
2020
Journal
Journal of Materials Processing Technology

Résumé

Accurate characterization of the mass transport properties of additively processed sand molds is essential in order to achieve reproducibility of the produced castings and control of gas defects in foundry industries. The present work highlights the potential use of X-ray micro-computed tomography (μ-CT) to characterize the evolution of permeability and some major microstructural features of such additively processed sand molds. The evolution of mass transport properties of sand mold samples under specific processing conditions met in additive manufacturing and its influence on the porosity, the permeability, the tortuosity, and the pore and throat size distributions were characterized from 3D images provided by X-Ray μ-CT. The obtained results showed that the mass transport properties of additively processed sand molds can be closely predicted by using non-destructive in situ methods, such that improvements to the casting can be made to create more optimized 3D printed structures for foundry applications.

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MSMP_JMPT_2019_MITRA.pdf
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  • Laboratoire Mechanics, Surfaces and Materials Processing (MSMP)

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Visualiser des documents liés par titre, auteur, créateur et sujet.

  • The effect of ageing process on three-point bending strength and permeability of 3D printed sand molds 
    Article dans une revue avec comité de lecture
    MITRA, Saptarshee; ccEL MANSORI, Mohamed; ccRODRIGUEZ DE CASTRO, Antonio (Springer Verlag, 2018)
    The objective of this paper was to investigate the effects of curing parameters (i.e., temperature and time), on the permeability and mechanical strength of the printed molds. Several sets of samples were hence produced ...
  • On the rapid manufacturing process of functional 3D printed sand molds 
    Article dans une revue avec comité de lecture
    MITRA, Saptarshee; ccEL MANSORI, Mohamed; ccRODRIGUEZ DE CASTRO, Antonio (Society of Manufacturing Engineers, 2019)
    3D printing sand mold technology offers an opportunity for the foundry industry to rethink old casting approaches and to revive the manufacturing approach using computer models. One of the major concerns in sand molding ...
  • Nouvelle méthode de détermination de la distribution de la tailles des pores d’un milieu poreux par l’injection d’un fluide à seuil 
    Communication avec acte
    MALVAULT, Guillaume; OUKHLEF, Aimad; ccRODRIGUEZ DE CASTRO, Antonio; ccCHAMPMARTIN, Stephane; ccAHMADI-SENICHAULT, Azita; AMBARI, Abdelhak (2013)
    La caractérisation des milieux poreux (M.P.) en termes de porosité, de surface spécifique, de distribution de tailles des pores etc. est un enjeu important pour de nombreuses filières industrielles : récupération assistée ...
  • Towards a new method of porosimetry: principles and experiments 
    Communication avec acte
    ccRODRIGUEZ DE CASTRO, Antonio; ccAHMADI-SENICHAULT, Azita; BRUNEAU, Denis; OMARI, Aziz (2013)
    Current experimental methods used to determine pore size distributions (PSD) in porous media present several drawbacks such as toxicity of employed fluids (e.g. mercury porosimetry). Theoretical basis of a new method to ...
  • Investigation of feasibility of a new method to characteriz porous media in terms of pore size distribution 
    Communication avec acte
    ccRODRIGUEZ DE CASTRO, Antonio; ccAHMADI-SENICHAULT, Azita; BRUNEAU, Denis (2011)
    Current methods employed to determine pore size distributions in porous media present several drawbacks such as their toxicity (mercury porosimetry). An original method to measure pore size distribution using yield stress ...

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