Computational Modeling of Additive Manufacturing by Power Bed Laser Fusion: FY19 Engineering Research Technical Investment Program

Abstract

Additive manufacturing (AM) or 3D printing has had a huge impact on numerous sectorsat scales ranging from microfabrication to big area manufacturing (size of meters). Many predictthat it will soon be recognized as the technology behind the third industrial revolution. It is definedby the ISO/ASTM as the process of joining materials to make parts from 3D model data, usuallylayer upon layer, as opposed to subtractive and formative manufacturing methodologies. Withadditive manufacturing, parts of complex geometry can be built with a single machine operationand without any special masks, tooling, dies, or fixtures. Originally used primarily for fabrication ofprototypes and models of design concepts, various AM methods are presently capable of producingfunctional devices, components, and structures constructed from numerous types of materials.

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Document Details

Document Type
Technical Report
Publication Date
May 14, 2020
Accession Number
AD1147820

Entities

People

  • E. M. Parsons

Organizations

  • MIT Lincoln Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Additive Manufacturing
  • Air Force
  • Composite Materials
  • Energy
  • Fabrication
  • Heat Energy
  • Heat Of Fusion
  • Heat Transfer
  • Laser Beams
  • Lasers
  • Latent Heat
  • Manufacturing
  • Metal Matrix Composites
  • Selective Laser Melting
  • Selective Laser Sintering
  • Specific Heat
  • Surface Tension
  • Temperature Gradients
  • Thermal Conductivity
  • Thermal Diffusivity

Readers

  • Manufacturing Engineering.
  • Systems Analysis and Design

Technology Areas

  • Directed Energy