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Cited by 37Additive Manufacturing Materials and ProcessesWelding Techniques and Residual StressesSurface Treatment and Coatings

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Powder catchment in laser metal deposition

Siva Prasad, Himani, Brueckner, Frank, Kaplan, Alexander F. H.·2019·Journal of Laser Applications
DOI 10.2351/1.5096130
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Abstract

Laser metal deposition (LMD) of Inconel 718 using a coaxial nozzle is investigated by high-speed imaging. The interaction of individual powder grains with the laser induced melt pool surface and, finally, their catchment in the LMD track is observed. Powder catchment trends are explained by interpreting physical phenomena, such as the melt flow and surface tension. Distinct zones for powder catchment are categorized depending on the position of initial interaction between powder grains and the melt pool. Particles are introduced outside the melt pool ricochet and do not attach to the clad. Particles arriving outside the laser spot, onto the solidifying skin of the melt pool, are caught, and may incorporate. Some particles may remain on the clad surface as surface roughness on the built part. Particles interacting with the laser-irradiated region of the melt pool tend to move toward its center and readily incorporate into the melt. Quantitative analyses of high-speed videos are carried out to measure incorporation time of powder grains in the melt pool, their velocity, and distance traveled.

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Research works printed but not linked: 19

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Metadata

Authors
Siva Prasad, H., Brueckner, F., & Kaplan, A. F. H.
Affiliations
  • Department of Engineering Sciences and Mathematics, Luleå University of Technology 1 , Luleå SE-971 87, Sweden
  • Luleå University of Technology (SE)
ORCID
Venue
Journal of Laser Applications
Publisher
Laser Institute of America
Published
2019-04-17
Volume
31
Issue
2
ISSN
  • 1042-346X (ISSN-L)
  • 1938-1387
DOI
10.2351/1.5096130
OpenAlex
W2937087507
Cited by
37
References
0
Citations by year
2026: 1 · 2025: 3 · 2024: 5 · 2023: 8 · 2022: 10 · 2021: 6 · 2020: 3 · 2019: 1
FWCI
2.81
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Laser Applications (publishedVersion)
  • Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft) (submittedVersion)
  • Fraunhofer-Publica (Fraunhofer-Gesellschaft) (submittedVersion)
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Additive Manufacturing Materials and Processes
  • Physical Sciences › Engineering › Mechanical Engineering › Welding Techniques and Residual Stresses
  • Physical Sciences › Engineering › Mechanical Engineering › Surface Treatment and Coatings
Keywords
laser metal deposition, Inconel 718, coaxial nozzle, molten pool, surface tension, melt flow, surface roughness, high-speed imaging

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CoChat. (2026). Citation check: Powder catchment in laser metal deposition. https://app.cochat.ai/papers/10.2351/1.5096130
The paper
Siva Prasad, H., Brueckner, F., & Kaplan, A. F. H. (2019). Powder catchment in laser metal deposition. Journal of Laser Applications. https://doi.org/10.2351/1.5096130