TY - JOUR
T1 - Spatial variation of melt pool geometry, peak temperature and solidification parameters during laser assisted additive manufacturing process
AU - Manvatkar, V.
AU - De, A.
AU - DebRoy, T.
N1 - Publisher Copyright:
© 2015 Institute of Materials, Minerals and Mining.
PY - 2015/6/1
Y1 - 2015/6/1
N2 - 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.
AB - 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.
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U2 - 10.1179/1743284714Y.0000000701
DO - 10.1179/1743284714Y.0000000701
M3 - Article
AN - SCOPUS:84938924281
SN - 0267-0836
VL - 31
SP - 924
EP - 930
JO - Materials Science and Technology (United Kingdom)
JF - Materials Science and Technology (United Kingdom)
IS - 8
ER -