Rapid Prototyping and Additive Manufacturing

LECTURE PRESENTATION

LECTURE PRESENTATION 

 

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Outline

 3D Printing Photo Gallery

General Principles

  • Additive Processes
  • Digital Model
  • Stratification, Triangulation

Examples of Technologies

  • 3D Printing
    • Photopolymer Liquid
    • Fusible Powder
  • Direct Metal Laser Sintering
  • Electron Beam Melting
  • Fused Deposition Modeling
    • Polymer
    • Ceramic/Concrete
  • Laminated Object Manufacturing
    • Ultrasonic Consolidation
  • Selective Laser Sintering
  • Stereolithography
    • Laser SLA
    • DLP

Post Processing

  • Impregnation
    • Cyanoacrylate
    • Elastomers
  • Painting
  • Vacuum Metallization
  • Sanding
  • Support Removal

Rapid Tooling

  • RTV Tooling
  • Casting Patterns

Purchasing Considerations

  • Resolution (in X, Y & Z)
  • Minimum feature size
  • Build envelope size
  • Suitability of the material for intended purpose
    • COST (resin cost, support material)
    • Creep resistance
    • Chemical properties
    • Ability to be coated, plated
    • Variety of materials available for the particular machine
  • Build speed
  • Support material removal
  • Cost of supporting materials
    • Solvents, cleaning material
    • Purge material
    • Other consumables, trays, etc.
  • Cost of services agreement
  • File formats (compatibility with existing software)
  • Idle time (some machines must be used consistently)
  • Regulatory compliance
  • Special requirements
    • Additional computers and hardware
    • Ventilation
    • Power consumption
    • Uninterrupted power supply
  • ALWAYS – talk to an owner of the machine you plan to buy
  • ALWAYS – get a model that was printed on the machine you will buy

Additional Infomation

Manufacturers of Commercial RP Equipment

Open Source

  • Slic3r – G-Code Generator for 3D Printers

Currently in the News (popular press)

3D Printed Metal Gun

Rolls-Royce Plans 3D Printing for Jet Engines