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A New Heat Transfer Simulation Model for Selective Laser Melting to Estimate the Geometry of Cross Section of Melt Pool

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  • First Online:
Mechanics of Additive and Advanced Manufacturing, Volume 9

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Abstract

For simulating the geometry of melt pool’s cross section more accurately in Selective Laser Melting (SLM) process, modeling the volumetric heat source is considered as the key issue. In the present study, a three dimensional finite element heat transfer simulation with new volumetric heat source is proposed to simulate the geometry of melt pool’s cross section during SLM process. The approach to build up the volumetric heat source is based on the modified sequential addition method to simulate the powder bed and the Monte Carlo ray tracing simulation in Zemax to calculate the energy distribution along the depth of metal powder layer. For validating the proposed simulation model, the simulated result of the contact-width between melt pool and substrate is compared with experimental result presented in the existing literature.

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Reference

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan

    Hong-Chuong Tran & Yu-Lung Lo

  2. Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, Taiwan

    Yu-Lung Lo

Authors
  1. Hong-Chuong Tran
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  2. Yu-Lung Lo
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Corresponding author

Correspondence to Yu-Lung Lo .

Editor information

Editors and Affiliations

  1. Mechanical Engineering, University of Washington, Seattle, Washington, USA

    Junlan Wang

  2. Sandia National Laboratories, Livermore, California, USA

    Bonnie Antoun

  3. Los Alamos National Laboratory, Los Alamos, New Mexico, USA

    Eric Brown

  4. Neil Armstrong Hall, Purdue University, West Lafayette, Indiana, USA

    Weinong Chen

  5. University of Illinois, Urbana-Champaign, Illinois, USA

    Ioannis Chasiotis

  6. United States Naval Academy, Annapolis, Maryland, USA

    Emily Huskins-Retzlaff

  7. Sandia National Laboratories, Albuquerque, New Mexico, USA

    Sharlotte Kramer

  8. Dow Chemical Company, Lake Jackson, Texas, USA

    Piyush R. Thakre

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© 2018 The Society for Experimental Mechanics, Inc.

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Tran, HC., Lo, YL. (2018). A New Heat Transfer Simulation Model for Selective Laser Melting to Estimate the Geometry of Cross Section of Melt Pool. In: Wang, J., et al. Mechanics of Additive and Advanced Manufacturing, Volume 9. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-62834-9_3

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  • DOI: https://doi.org/10.1007/978-3-319-62834-9_3

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-62833-2

  • Online ISBN: 978-3-319-62834-9

  • eBook Packages: EngineeringEngineering (R0)

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