Info-paedia : Additive Manufacturing

Info-paedia : Additive Manufacturing

What is Additive Manufacturing?

3D printer reads CAD and creates the part by adding small amounts of material in layers until desired geometry is achieved. Post-processing may include light machining, support material removal, surface finishing, sintering, and infiltration but is dependent on the printing process used.

Additive Manufacturing Processes

  • Material Jetting
  • VAT Photo polymerization
  • Powder Bed Fusion
  • Sheet Lamination
  • Binder Jetting
  • Material Extrusion
  • Directed Energy Deposition

Where Additive Manufacturing is used

  • Aerospace: Due to its weight saving capability and ability to produce complex geometric parts such as blisks.
  • Automotive: It speeds up the production rate in the automotive sector.
  • Medical: Applications for additively manufactured parts, especially for bespoke custom-fitted implants and devices.
  • Consumer products: AM has proven beneficial to the product development of many consumer goods such as sporting goods and consumer electronics.
  • Energy: AM innovation in producing efficient, on-demand, lightweight components has driven success in the energy sector.

Limitations of Additive Manufacturing

  • Cost of entry is high.
  • Production costs are also high.
  • Deposited layers can create weakened parts if not calibrated perfectly.
  • Much too slow for mass manufacturing.
  • Special materials are required for application in corrosive environments, or where food-grade materials are required.
  • The machines require very highly trained maintenance teams.