Journal
SCRIPTA MATERIALIA
Volume 135, Issue -, Pages 119-124Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2016.12.005
Keywords
Additive manufacturing; Microstructure and properties; Heat transfer and material flow; Solidification and texture; Residual stresses and distortion
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Funding
- RAMPUP program of the U.S. Department of Energy (DOE) through Oak Ridge National Laboratory (ORNL)
- DOE Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office [DE-AC05-000R22725]
- UT-Battelle, LLC
- Laboratory Directed Research and Development Program of ORNL
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Geometrical conformity, microstructure and properties of additively manufactured (AM) components are affected by the desired geometry and many process variables within given machines. Building structurally sound parts with good mechanical properties by trial and error is time-consuming and expensive. Today's computationally efficient, high-fidelity models can simulate the most important factors that affect the AM products' properties, and upon validation can serve as components of digital twins of 3D printing machines. Here we provide a perspective of the current status and research needs for the main building blocks of a first generation digital twin of AM from the viewpoints of researchers from several organizations. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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