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Spatial variation of melt pool geometry, peak temperature and solidification parameters during laser assisted additive manufacturing process

Spatial variation of melt pool geometry, peak temperature and solidification parameters during... A three-dimensional heat transfer and material flow model is developed to numerically simulate the temperature and velocity fields in a laser assisted layer by layer deposition process with coaxially fed powder particles. The computed results are tested with independently reported temperature and build geometry for the deposition of multilayered structures of austenitic stainless steel. The results provide detailed insight about the important physical processes and show that the model can be used to understand the effects of process parameters on the thermal cycles, build geometry, cooling rates and solidification parameters in a multilayer additive manufacturing process. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Materials Science and Technology SAGE

Spatial variation of melt pool geometry, peak temperature and solidification parameters during laser assisted additive manufacturing process

Materials Science and Technology , Volume 31 (8): 7 – Jun 1, 2015

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References (31)

Publisher
SAGE
Copyright
© 2015 Institute of Materials, Minerals and Mining
ISSN
0267-0836
eISSN
1743-2847
DOI
10.1179/1743284714y.0000000701
Publisher site
See Article on Publisher Site

Abstract

A three-dimensional heat transfer and material flow model is developed to numerically simulate the temperature and velocity fields in a laser assisted layer by layer deposition process with coaxially fed powder particles. The computed results are tested with independently reported temperature and build geometry for the deposition of multilayered structures of austenitic stainless steel. The results provide detailed insight about the important physical processes and show that the model can be used to understand the effects of process parameters on the thermal cycles, build geometry, cooling rates and solidification parameters in a multilayer additive manufacturing process.

Journal

Materials Science and TechnologySAGE

Published: Jun 1, 2015

Keywords: Laser additive manufacturing; Multilayer deposition; Stainless steel; Heat transfer; 3D printing; Fluid flow

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