Selective Laser Melting of Metal Matrix Composites: FY19 Advanced Materials and Processes Line-Supported Program

Abstract

This document describes progress toward developing aluminum matrix composites that can be processed with selective laser melting (SLM), a 3D printing method that uses a high intensity laser to consolidate thin layers of metal powder. Feedstock powders have been developed specifically for the SLM process, and laser consolidation has been conducted with an SLM testbed. The results thus far demonstrate exceptional properties at the microscale and suggest a clear path for transitioning these properties into macroscale samples and components. The ultimate goal of the program is to transfer the materials and methods to commercial SLM machines at MIT LL and other organizations, enabling materials with high specific stiffness to be used for the first time in components requiring short lead times and complex shapes.

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Document Details

Document Type
Technical Report
Publication Date
Apr 14, 2020
Accession Number
AD1101428

Entities

People

  • E. M. Parsons
  • T. M. Mower

Organizations

  • MIT Lincoln Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Additive Manufacturing
  • Advanced Materials
  • Chemistry
  • Composite Materials
  • Fabrication
  • Manufacturing
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Mechanical Properties
  • Mechanical Working
  • Metal Matrix Composites
  • Selective Laser Melting
  • Selective Laser Sintering

Fields of Study

  • Physics

Readers

  • Manufacturing Engineering.
  • Optical Physics and Photonics.
  • Surface Engineering/Surface Coating Technology.

Technology Areas

  • Directed Energy