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Makoto Watanabe
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Sukeharu Nomoto
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Particle Size Effect on Powder Packing Properties and Molten Pool Dimensions in Laser Powder Bed Fusion Simulation
Description/Abstract:
Various defects are produced during laser powder bed fusion (L-PBF) process, and can affect the quality of the fabricated part. Past stud...
Keyword:
discrete-element method
,
laser powder bed fusion
,
multiphysics CFD simulation
,
packing fraction
,
packing homogeneity
,
particle size
, and
powder spreading
Resource Type:
Article
Author:
Jun Katagiri
,
Sukeharu Nomoto
,
Masahiro Kusano
, and
Makoto Watanabe
Journal:
Journal of Manufacturing and Materials Processing
Date Uploaded:
05/04/2024
Solute segregation in a rapidly solidified Hastelloy-X Ni-based superalloy during laser powder bed fusion investigated by phase-field and computational thermal-fluid dynamics simulations
Description/Abstract:
Solute segregation significantly affects material properties and is a critical issue in the laser powder-bed fusion (LPBF) additive manuf...
Keyword:
Computational thermal-fluid dynamics simulation
,
Hastelloy-X nickel-based superalloy
,
Laser powder-bed fusion
,
Phase-field method
, and
Solute element segregation
Resource Type:
Article
Author:
Masayuki Okugawa
,
Kenji Saito
,
Haruki Yoshima
,
Katsuhiko Sawaizumi
,
Sukeharu Nomoto
,
Makoto Watanabe
,
Takayoshi Nakano
, and
Yuichiro Koizumi
Journal:
Additive Manufacturing
Date Uploaded:
02/04/2024
Influence of recoil pressure, mushy zone flow resistance and reflectivity on melt pool shape in laser powder bed fusion simulation
Description/Abstract:
Melt pool dimensions (depth: <i>D</i> and width: <i>W</i>) are strongly correlated with defects generated in laser powder bed fusion. The...
Keyword:
Fresnel laser reflection model
,
Laser powder bed fusion
,
Melt pool shape
,
Multi-physics CFD simulation
,
Mushy zone flow resistance
, and
Recoil pressure
Resource Type:
Article
Author:
Jun Katagiri
,
Masahiro Kusano,
,
Sukeharu Nomoto
, and
Makoto Watanabe
Journal:
Case Studies in Thermal Engineering
Date Uploaded:
10/10/2023
Date Modified:
10/10/2023
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Fresnel laser reflection model
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Hastelloy-X nickel-based superalloy
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Laser powder-bed fusion
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Creative Commons BY Attribution 4.0 International
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Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
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Makoto Watanabe
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Sukeharu Nomoto
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Jun Katagiri
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Haruki Yoshima
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Innovative Science and Technology Initiative for Security
1
Japan Science and Technology Agency
1
Japan Society for the Promotion of Science
1
the Acquisition, Technology, and Logistics Agency(ATLA)
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Additive Manufacturing
1
Case Studies in Thermal Engineering
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Journal of Manufacturing and Materials Processing
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