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Flashcards in Multifunctional AM Deck (6)
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1
Q

When was the peak of the 3D printing hype cycle?

A

3D printing was introduced over 30 years ago but a hype on the technology only happened early this decade

2012 was the peak of the hype

2
Q

What is the concept of multifunctional AM?

A

The ability to print multiple materials in one structure is key to enable multifunctional AM

3
Q

What are the processing requirements to enable multifunctional AM? and what are some possible processes?

A
  • Ability to deposit materials alongside each other
  • Ability to deposit materials on specific locations
  • Ability to solidify multiple materials alongside each other

Material extrusion and jetting

4
Q

What are the material requirements to enable multifunctional AM?

A
  • Material stability in the printhead (does it block the nozzle etc…)
  • Material stability on the substrate/previous layer (Is the spreading controlled on the substrate/previous layer)
  • Materials compatibility, preventing reaction etc…
  • Material solidification conditions (what method of solidification is needed for each material)
5
Q

What are some examples of applications of multifunctional AM?

A

Soft robotic arm (silicone ink and carbon ink creates a dielectric elastomer actuator)
Food ( chocolate and dough for controlled food diets)
Printed electronic applications (Voxel8, hybrid FFF of polymer paste extrusion of silver ink)

6
Q

What are some advances in multifunctional AM?

A

Printed electronic applications

  • inkjet printing of UV curable inks doped with iron oxide particles for electromagnetic applications
  • Inkjet printing of silver and polymer inks in one structure using UV curing methods

Printed medical applications

  • cornea stroma equivalent
  • Silver microwires
  • Printing tablets with complex geometries for controlled and tuneable drug release