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Title: Experimental comparison of residual stresses for a thermomechanical model for the simulation of selective laser melting

Abstract

Selective laser melting (SLM) is an additive manufacturing process in which multiple, successive layers of metal powders are heated via laser in order to build a part. Modeling of SLM requires consideration of the complex interaction between heat transfer and solid mechanics. Here, the present work describes the authors initial efforts to validate their first generation model. In particular, the comparison of model-generated solid mechanics results, including both deformation and stresses, is presented. Additionally, results of various perturbations of the process parameters and modeling strategies are discussed.

Authors:
 [1];  [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1342999
Report Number(s):
LLNL-JRNL-679334
Journal ID: ISSN 2214-8604
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Additive Manufacturing
Additional Journal Information:
Journal Volume: 12; Journal Issue: PB; Journal ID: ISSN 2214-8604
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 97 MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; experimental comparison; residual stresses; finite elements; multi-physics; additive manufacturing; selective laser melting

Citation Formats

Hodge, N. E., Ferencz, R. M., and Vignes, R. M.. Experimental comparison of residual stresses for a thermomechanical model for the simulation of selective laser melting. United States: N. p., 2016. Web. https://doi.org/10.1016/j.addma.2016.05.011.
Hodge, N. E., Ferencz, R. M., & Vignes, R. M.. Experimental comparison of residual stresses for a thermomechanical model for the simulation of selective laser melting. United States. https://doi.org/10.1016/j.addma.2016.05.011
Hodge, N. E., Ferencz, R. M., and Vignes, R. M.. Mon . "Experimental comparison of residual stresses for a thermomechanical model for the simulation of selective laser melting". United States. https://doi.org/10.1016/j.addma.2016.05.011. https://www.osti.gov/servlets/purl/1342999.
@article{osti_1342999,
title = {Experimental comparison of residual stresses for a thermomechanical model for the simulation of selective laser melting},
author = {Hodge, N. E. and Ferencz, R. M. and Vignes, R. M.},
abstractNote = {Selective laser melting (SLM) is an additive manufacturing process in which multiple, successive layers of metal powders are heated via laser in order to build a part. Modeling of SLM requires consideration of the complex interaction between heat transfer and solid mechanics. Here, the present work describes the authors initial efforts to validate their first generation model. In particular, the comparison of model-generated solid mechanics results, including both deformation and stresses, is presented. Additionally, results of various perturbations of the process parameters and modeling strategies are discussed.},
doi = {10.1016/j.addma.2016.05.011},
journal = {Additive Manufacturing},
number = PB,
volume = 12,
place = {United States},
year = {2016},
month = {5}
}

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Cited by: 18 works
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Works referenced in this record:

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    Residual stress prediction in selective laser melting: A critical review of simulation strategies
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    Residual Stress in Additive Manufactured Nickel Alloy 625 Parts
    journal, March 2018

    • Bass, Lindsey; Milner, Justin; Gnäupel-Herold, Thomas
    • Journal of Manufacturing Science and Engineering, Vol. 140, Issue 6
    • DOI: 10.1115/1.4039063

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    journal, February 2019

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    • Journal of Manufacturing Science and Engineering, Vol. 141, Issue 4
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