I'm trying to research additive (or 'bottom-up') fabrication techniques that rely on lasers or other advanced photonic systems. So far, the most prevalent technique I've come across is two-photon polymerisation, but I'm struggling to find any others. Any further examples would be much appreciated.

  • 2
    $\begingroup$ selective laser melting, selective laser sintering and laser deposition welding with powder and/or wire come to mind $\endgroup$ – OpticalResonator Nov 13 '20 at 20:47
  • $\begingroup$ @OpticalResonator, please put your comment as answer $\endgroup$ – Adrian Maire Nov 17 '20 at 13:58

Here is an incomplete list of laser-based additive manufacturing, based on my comment. I might expand on it later:

  • Selective laser melting/sintering (SLM/SLS): a laser beam melts/sinters a layer of powder at the desired spots, after solidification, a new layer is added and the process starts over.

  • Stereolitography: basically the same as SLM, but instead of powder, you use a resin that solidifies when exposed to light. One of the oldest additive manufacturing processes.

  • Laser deposition welding: a laser melts a spot on a base plate, additional material is fed into this melt pool in form of powder or wire (processes with both at once also exist, need to search a bit for a citation). From there on you build up a part in layers. This process is very close to the classic "3D printer" with plastic FDM.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.