Towards porosity-free additive manufacturing by optimizing laser rescanning technology based on MPS-DEM simulations

Guangtao Duan

Presentation information

Oral presentation

III. Fission Energy Engineering » 305-1 Computational Science and Engineering

[3G06-09] Advanced Simulation

Fri. Sep 8, 2023 10:50 AM - 11:55 AM Room G (ES Bildg. 2F ES021)

Chair:Yoritaka Iwata(Osaka Univ. of Economics and Law)

11:05 AM - 11:20 AM

[3G07] Towards porosity-free additive manufacturing by optimizing laser rescanning technology based on MPS-DEM simulations

*Guangtao Duan¹, Mikio Sakai¹ (1. UTokyo)

Keywords:Additive manufacturing, Pore elimination, MPS, DEM, Particle method

Rescanning the track in additive manufacturing is effective to reduce the porosity. The paper investigated the influence of laser powder, scanning length, and laser-beam shape in the rescanning technology based on MPS-DEM simulations. An optimized rescanning approach is proposed to completely discharge porosity.