Review of in-situ process monitoring and in-situ metrology for metal additive manufacturing

Lack of assurance of quality with additively manufactured (AM) parts is a key technological barrier that prevents manufacturers from adopting AM technologies, especially for high-value applications where component failure cannot be tolerated. Developments in process control have allowed significant enhancement of AM techniques and marked improvements in surface roughness and material properties, along with a reduction in inter-build variation and the occurrence of embedded material discontinuities. As a result, the exploitation of AM processes continues to accelerate. Unlike established subtractive processes, where in-process monitoring is now commonplace, factory-ready AM processes have not yet incorporated…

• UR
  UK Research Centre in NDE, Imperial College London

  Award: EP/L022125/1
• EA
  Engineering and Physical Sciences Research Council

  Awards: EP/M008983/1, EP/I033335/2, EP/G065802/1, EP/L022125/1, EP/M008983/1, EP/L022125/1, EP/L01713X/1, EP/I033335/1, EP/M02315X/1, EP/L01713X/1