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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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Documents liés

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  • 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 ...
  • 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 ...
  • Using Xanthan Gum Solutions to Characterize Porous Media with the Yield Stress Fluid Porosimetry Method: Robustness of the Method and Effects of Polymer Concentration 
    Article dans une revue avec comité de lecture
    RODRIGUEZ DE CASTRO, Antonio; ccAHMADI-SENICHAULT, Azita; OMARI, Abdelaziz (Springer Verlag, 2018)
    The yield stress fluids porosimetry method (YSM)was recently presented as a simple and non-toxic potential alternative to the extensively used mercury intrusion porosimetry (MIP). The success of YSM heavily relies on the ...
  • Numerical analysis of the fluid-solid interactions during steady and oscillatory flows of non-Newtonian fluids through deformable porous media 
    Article dans une revue avec comité de lecture
    ccRODRIGUEZ DE CASTRO, Antonio; CHABANON, Morgan; GOYEAU, Benoit (Elsevier BV, 2023-05)
    The flow of non-Newtonian fluids through evolving porous media is involved in important processes including blood flow and remediation of deformable aquifers. However, the effects of a moving solid boundary and the coupling ...
  • 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 ...

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