Challenges in path planning of high energy density beams for additive manufacturing

K. P. Karunakaran, Seema Negi, Arun Nambolan, Ashik Patel, Yogesh Patil, Milan Pandya, Sajan Kapil, Dmitriy Trushnikov, Michael Sealy, Alain Bernard

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


As there are no cutting forces in High Energy Density (HED) beams like lasers and Electron Beam (EB), their speeds are limited only by their positioning systems. On the other hand, as the entire matrix of the 3D printed part has to be addressed by the thin beam in multiple passes in multiple layers, they have to travel several kilometers in tiny motions. Therefore, the acceleration of the motion system becomes the limiting factor than velocity or precision. The authors have proposed an area-filling strategy for EB to fill the layer with optimal squares to exploit analog and hardware computing. 3D printing requires uniform intensity slanged as flat hat shape whereas the default is Gaussian. The authors have proposed an optimal algorithm that takes into account the maximum velocity and acceleration for achieving a flat hat without any compromise on productivity.

Original languageEnglish (US)
Article number012012
JournalIOP Conference Series: Materials Science and Engineering
Issue number1
StatePublished - Feb 1 2020
Event3rd International Biannual Conference on Electron Beam Welding and Related Technologies, EBW 2019 - Moscow, Russian Federation
Duration: Nov 12 2019Nov 15 2019

ASJC Scopus subject areas

  • General Materials Science
  • General Engineering


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