Multiphysical Modeling of the Heating Phase in the Polymer Powder Bed Fusion Process

Xin Liu, M’hamed Boutaous, Shihe Xin, Siginer Dennis

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    A numerical framework based on a modified Monte Carlo ray-tracing method and the Discrete Element Method (DEM) is developed to predict the physical behavior of discrete particles during the Powder Bed Fusion (SLS) process. A comprehensive model coupling all major aspects of the underlying physics and the corresponding numerical framework, accounting for radiative heat transfer, heat conduction, sintering and granular dynamics among others, is developed. In particular, the effect of scattering on the laser-particle interaction is investigated and accounted for in the numerical framework. The spatially and temporally varying distribution of heat and displacement within the additively manufactured object are captured in detail. The model is validated through the comparison of simulated results with existing experimental results in the literature.
    Original languageEnglish
    JournalAdditive Manufacturing
    DOIs
    Publication statusPublished - 2015

    Fingerprint

    Powders
    Polymers
    Fusion reactions
    Heating
    Particle interactions
    Ray tracing
    Heat conduction
    Finite difference method
    Sintering
    Physics
    Scattering
    Heat transfer
    Lasers
    Hot Temperature

    Cite this

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    title = "Multiphysical Modeling of the Heating Phase in the Polymer Powder Bed Fusion Process",
    abstract = "A numerical framework based on a modified Monte Carlo ray-tracing method and the Discrete Element Method (DEM) is developed to predict the physical behavior of discrete particles during the Powder Bed Fusion (SLS) process. A comprehensive model coupling all major aspects of the underlying physics and the corresponding numerical framework, accounting for radiative heat transfer, heat conduction, sintering and granular dynamics among others, is developed. In particular, the effect of scattering on the laser-particle interaction is investigated and accounted for in the numerical framework. The spatially and temporally varying distribution of heat and displacement within the additively manufactured object are captured in detail. The model is validated through the comparison of simulated results with existing experimental results in the literature.",
    author = "Xin Liu and M’hamed Boutaous and Shihe Xin and Siginer Dennis",
    year = "2015",
    doi = "10.1016/j.addma.2017.10.006",
    language = "English",
    journal = "Additive Manufacturing",
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    Multiphysical Modeling of the Heating Phase in the Polymer Powder Bed Fusion Process. / Liu, Xin; Boutaous, M’hamed; Xin, Shihe; Dennis, Siginer.

    In: Additive Manufacturing, 2015.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Multiphysical Modeling of the Heating Phase in the Polymer Powder Bed Fusion Process

    AU - Liu, Xin

    AU - Boutaous, M’hamed

    AU - Xin, Shihe

    AU - Dennis, Siginer

    PY - 2015

    Y1 - 2015

    N2 - A numerical framework based on a modified Monte Carlo ray-tracing method and the Discrete Element Method (DEM) is developed to predict the physical behavior of discrete particles during the Powder Bed Fusion (SLS) process. A comprehensive model coupling all major aspects of the underlying physics and the corresponding numerical framework, accounting for radiative heat transfer, heat conduction, sintering and granular dynamics among others, is developed. In particular, the effect of scattering on the laser-particle interaction is investigated and accounted for in the numerical framework. The spatially and temporally varying distribution of heat and displacement within the additively manufactured object are captured in detail. The model is validated through the comparison of simulated results with existing experimental results in the literature.

    AB - A numerical framework based on a modified Monte Carlo ray-tracing method and the Discrete Element Method (DEM) is developed to predict the physical behavior of discrete particles during the Powder Bed Fusion (SLS) process. A comprehensive model coupling all major aspects of the underlying physics and the corresponding numerical framework, accounting for radiative heat transfer, heat conduction, sintering and granular dynamics among others, is developed. In particular, the effect of scattering on the laser-particle interaction is investigated and accounted for in the numerical framework. The spatially and temporally varying distribution of heat and displacement within the additively manufactured object are captured in detail. The model is validated through the comparison of simulated results with existing experimental results in the literature.

    U2 - 10.1016/j.addma.2017.10.006

    DO - 10.1016/j.addma.2017.10.006

    M3 - Article

    JO - Additive Manufacturing

    JF - Additive Manufacturing

    SN - 2214-8604

    ER -