5 Things To Know About Additive Manufacturing

Additive Manufacturing

What is Additive Manufacturing?

What is Additive Manufacturing

Materials are added to create the finished product, rather than removed such as in subtractive manufacturing (milling or turning for example).

The process provides an incredibly cost-effective and efficient means of producing the finished item and provides a far greater range of possibilities because of the flexibility of the process.

Large scale 3D printing in progress
  1. Design freedom — enables rapid iterations and flexibility to make design improvements right up to production
  2. Ultimate customization and tailoring – make one-offs as easily as production batches
  3. Ability to create complex shape with internal strengthening features
  4. Performance from a wide choice of materials to create extremely strong and corrosive resistant parts.
  5. Rapid prototyping

Classification of Additive Manufacturing

  • SLS: Selective Laser Sintering;
    Used in conjunction with materials such as plastics, nylons and ceramics
  • DMLS: Direct Metal Laser Sintering;
    Used exclusively with metal and metal
    alloys;
  • SLM: Selective Laser Melting;
    Used only when the powder is being melted rather than sintered
  • Laser cusing;
    comes from the “C” in Concept Laser and the word “fusing”; laser cusing is fundamentally a brand name for SLM and is a registered trademark of Concept Laser, Germany.

Examples of Industrial Use of Additive Manufacturing

Example of a 3D printed fuel nozzle
  • Aerospace:
    The ability to create lightweight components which are aerodynamic and can be formed in a variety of complex geometric shapes.
  • Electronics and semiconductor:
    Electronics no longer need bulky circuit boards or wires and cables; The entire package can be shrunk down into a micro size.
  • Automative industry:
    Make metals such as titanium strong and stable enough to create a dense material product. Carbon fibre is already in widespread use, desirable for its light weight yet extreme toughness and strength.
  • Medical:
    Doctors could provide far more precise surgical outcomes and heal more easily.
  • Back reflection protection: because even for powders some users report issues
  • In process monitoring: Using the back reflection signal from fiber provides a unique opportunity for real time non-invasive process monitoring.
  • Fast temporal response with high stability: the process uses individual pulse in ‘point & shoot 7 or continuous vector mode.
  • Faster pulse rise times: shorter pulses deliver higher throughput and finer processing > Power stability at switch on leading to less instability seen in work-piece.

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