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A Numerical Model for Predicting the Gas Evolution in Silica Sand (Furan Binder) Mold Castings

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Advances in the Science and Engineering of Casting Solidification

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Abstract

Modeling of gas evolution during sand-mold castings is one of the most important technical and environmental issues facing the metal casting industry. The current effort funded by ExOne focused on develo** the capability of numerically predicting the gas evolution for the furan binder-silica sand system. Specifically, the decomposition of furan was experimentally analyzed and then predicted based upon the work developed in the current project. This methodology can be easily implemented into existing commercial casting codes. A parametric experimental and theoretical study was also performed for A356 cylinders (D100xH200m) and bars (H50mmxW50mmxL250mm) cast into silica sand molds (furan binder) of 50 mm mold wall thickness to investigate the effects of superheat and heating/cooling conditions of the mold on the gas evolution. Such information would enable more technically and environmentally friendly decisions to be made concerning the process design used to make a given casting.

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References

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Author information

Authors and Affiliations

  1. The University of Alabama, Tuscaloosa, AL, 35487, USA

    Laurentiu Nastac & Shian Jia

  2. ExOne, 127 Industry Boulevard, North Huntingdon, PA, 15642, USA

    Mihaela N. Nastac & Robert Wood

Authors
  1. Laurentiu Nastac
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  2. Shian Jia
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  3. Mihaela N. Nastac
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  4. Robert Wood
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Editor information

Editors and Affiliations

  1. Metallurgical and Materials Engineering Department, The University of Alabama, Tuscaloosa, Alabama, USA

    Laurentiu Nastac (Associate Professor of Metallurgical and Materials Engineering) (Associate Professor of Metallurgical and Materials Engineering)

  2. School of Materials Science and Engineering and School of Mechanical Engineering, Tsinghua University, China

    Baicheng Liu (professor) (professor)

  3. Casting of Metals, KTH, Sweden

    Hasse Fredriksson (professor) (professor)

  4. Centre National de la Recherche Scientifique (CNRS), France

    Jacques Lacaze (associate researcher) (associate researcher)

  5. Department of Materials Science and Metallurgy, Yonsei University, Seoul, Korea

    Chun-Pyo Hong

  6. Virtual Product Development Division, Caterpillar, USA

    Adrian V. Catalina (Senior R&D Engineer) (Senior R&D Engineer)

  7. Foundry-Institute, RWTH-Aachen University, Germany

    Andreas Buhrig-Polaczek (head) (head)

  8. The University of Alabama at Birmingham (UAB), USA

    Charles Monroe (Assistant Professor) (Assistant Professor)

  9. Materials Science and Technology, Oak Ridge National Laboratory, USA

    Adrian S. Sabau (Research Staff Member) (Research Staff Member)

  10. University Politehnica of Bucharest, Romania

    Roxana Elena Ligia Ruxanda Ph.D. (Engineer in Casting and Solidification) (Engineer in Casting and Solidification)

  11. The Ohio State University (OSU), Columbus, Ohio, USA

    Alan Luo (Professor of Materials Science and Engineering and Professor of Integrated Systems Engineering (Manufacturing) (Professor of Materials Science and Engineering and Professor of Integrated Systems Engineering (Manufacturing)

  12. LLC in support of Boeing’s Space Launch System, USA

    Subhayu Sen (Principal Engineer and Subject Matter Expert for Geocent) (Principal Engineer and Subject Matter Expert for Geocent)

  13. Technical University of Cluj, Rumania

    Attila Diószegi (engineer in material science) (engineer in material science)

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© 2015 TMS (The Minerals, Metals & Materials Society)

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Nastac, L., Jia, S., Nastac, M.N., Wood, R. (2015). A Numerical Model for Predicting the Gas Evolution in Silica Sand (Furan Binder) Mold Castings. In: Nastac, L., et al. Advances in the Science and Engineering of Casting Solidification. Springer, Cham. https://doi.org/10.1007/978-3-319-48117-3_43

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