Modeling and Simulation of a Laser Deposition Process (Preprint)

Abstract

A laser deposition process involves the supply of metallic powders into a laser-heated spot where the powder is melted and forms a melt puddle which quickly solidifies into a bead. In order to design an effective system, the laser beam, the powder beam, and their interactions need to be fully understood. In this paper, the laser-material interaction within the melt pool is reported using a multi-scale model: a macroscopic model to model mass, heat, and momentum transfer. Experiments were also conducted to validate the simulation model.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2007
Accession Number
ADA490608

Entities

People

  • Frank Liou
  • Heng Pan
  • Hsin-nan Chou
  • Joseph Newkirk
  • Kevin Slattery
  • Mary Kinsella
  • Zhiqiang Fan

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Coefficients
  • Equations
  • Fluid Flow
  • Heat Energy
  • Heat Of Fusion
  • Heat Transfer
  • Laser Beams
  • Laser Diodes
  • Lasers
  • Latent Heat
  • Manufacturing
  • Materials
  • Phase Transformations
  • Physical Properties
  • Thermodynamics

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Metallurgy
  • Thin Film Deposition Science.

Technology Areas

  • Directed Energy