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    Development of Simulation Tools for Selective Laser Melting Additive Manufacturing

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    2017-98-Nolan.pdf (1.144Mb)
    Date
    2017
    Author
    Nolan, Thomas
    Lian, Yongsheng
    Sussman, Mark
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    Abstract
    Two simulations tools have been developed to simulate selective laser melting. One is based on a multiphase flow solver with dynamic mesh adaptation and massive parallelism. The simulation tool is based on a first-principles approach to simulate complex additive manufacturing processes at the entire built part/component level. The developed model takes into account of heating, melting, powder-to-solid volumetric consolidation, cooling, as well as solidification and shrinkage that are often ignored in current simulation tools. The second tool is to solve the heat equation only without considering the flow field and volumetric changes. In both tools laser is modeled as a heat source. The reported work is our first step toward the development of a complete software suite that can be executed rapidly on workstations and clusters with accelerators. The simulation tool can provide AM practitioners and researchers from industry and academic a fast and accurate simulation-based approach to replace current trial-and-error based practices in industry for process and material development.
    Department
    Mechanical Engineering
    Subject
    simulation tool
    selective laser melting
    additive manufacturing
    URI
    https://hdl.handle.net/2152/89939
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