A sharp-interface multi-physics particle method to elucidate porosity formation and elimination mechanisms in metal additive manufacturing

Research Project

Project/Area Number	23K16892
Research Category	Grant-in-Aid for Early-Career Scientists
Allocation Type	Multi-year Fund
Review Section	Basic Section 60100:Computational science-related
Research Institution	The University of Tokyo
Principal Investigator	Duan Guangtao 東京大学, 大学院工学系研究科(工学部), 特任助教 (40804852)
Project Period (FY)	2023-04-01 – 2025-03-31
Project Status	Granted (Fiscal Year 2023)
Budget Amount *help	¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000) Fiscal Year 2024: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000) Fiscal Year 2023: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords	Particle method / Sharp interface model / Bubble dynamics / Additive manufacturing / Porosity
Outline of Research at the Start	The advanced particle methods will be employed to elucidate the porosity-formation mechanisms from (I) gaps among granules and (II) preexisting tiny pores inside granules in metal additive manufacturing. Then, new strategies will be explored to reduce and even eliminate porosity in fabricated parts.