# Influence of recoil pressure, mushy zone flow resistance and reflectivity on melt pool shape in laser powder bed fusion simulation

https://mdr.nims.go.jp/datasets/68e59dfa-5143-4db0-aa37-979073537ab8

## File

- [Katagiri_2023_CaseStudies_inThermalAnalysis.pdf](https://mdr.nims.go.jp/filesets/d74ee0f4-bb7e-42b9-942b-0d5695dddf05/download) ([Detail](https://mdr.nims.go.jp/filesets/d74ee0f4-bb7e-42b9-942b-0d5695dddf05.md))

## Id

68e59dfa-5143-4db0-aa37-979073537ab8

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-10-06T03:08:29.104135Z

## Updated at

2024-01-05T13:12:21.774243Z

## Published at

2023-10-10T04:44:08.300443Z

## Doi



## First published url

https://doi.org/10.1016/j.csite.2023.103477

## Date published

2023-09-11

## Recorded date published

2023-10

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Influence of recoil pressure, mushy zone flow resistance and reflectivity
    on melt pool shape in laser powder bed fusion simulation
  title_type: original
  lang: en

## Description

- description: 'Melt pool dimensions (depth: <i>D</i> and width: <i>W</i>) are strongly
    correlated with defects generated in laser powder bed fusion. The melt pool dimensions
    have been evaluated by CFD simulation including solid-liquid-gas phase change
    and laser multiple reflection. Such a multi-physics simulation requires a large
    number of parameters. Preliminary simulations for parameter identification require
    a lot of time and effort. The parameter sensitivity to the melt pool dimensions
    is important; however, the systematic evaluations have hardly been found in the
    literature. In this study, we performed systematic parametric evaluation for three
    parameters related to recoil pressure, flow resistance in solid-liquid mushy zone
    and Fresnel laser reflection. As a result, the <i>D</i> values increased with
    increasing recoil pressure, but the<i>W</i> values did not. The flow resistance
    force influenced the velocities in the mushy zone but not the melt pool dimensions.
    The <i>D</i> increased with increasing reflectivity, but the<i>W</i> did not.
    The melt pool dimensions varying recoil pressure, flow resistance force and reflectivity
    were all inconsistent with the experimental melt pool dimensions. In order to
    agree with the experimental melt pool dimensions, the problems to be solved were
    discussed by comparing the previous studies.'
  description_type: abstract
  lang: eng

## Creator

- name: Jun Katagiri
  role: author
  orcid: https://orcid.org/0000-0002-6399-1951
  organization: National Institute for Materials Science
  department: Research Center for Structural Materials
  ror: https://ror.org/026v1ze26
- name: Masahiro Kusano,
  role: author
  orcid: https://orcid.org/0000-0002-5061-0195
  organization: National Institute for Materials Science
  department: Research Center for Structural Materials
  ror: https://ror.org/026v1ze26
- name: Sukeharu Nomoto
  role: author
  orcid: https://orcid.org/0000-0001-6503-4699
  organization: National Institute for Materials Science
  department: Research Center for Structural Materials
  ror: https://ror.org/026v1ze26
- name: Makoto Watanabe
  role: author
  orcid: https://orcid.org/0000-0002-5064-9583
  organization: National Institute for Materials Science
  department: Research Center for Structural Materials
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Laser powder bed fusion
  schema: not_defined
- subject: Multi-physics CFD simulation
  schema: not_defined
- subject: Recoil pressure
  schema: not_defined
- subject: Mushy zone flow resistance
  schema: not_defined
- subject: Fresnel laser reflection model
  schema: not_defined
- subject: Melt pool shape
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Case Studies in Thermal Engineering
  issn: 2214157X
  volume: '50'
  article_number: '103477'

## Conference



## Related item



## Funding

- identifier: JPJ004596
  funder_name: the Acquisition, Technology, and Logistics Agency(ATLA)

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



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## Fileset

- id: d74ee0f4-bb7e-42b9-942b-0d5695dddf05
  filename: Katagiri_2023_CaseStudies_inThermalAnalysis.pdf
  content_type: application/pdf
  size: 2722608
  md5: bc02aa435f325006a6a83a1e2c2c1f25

## Thumbnail

fileset_id: d74ee0f4-bb7e-42b9-942b-0d5695dddf05
filename: Katagiri_2023_CaseStudies_inThermalAnalysis.pdf