Two-fluid model to simulate metal powder bed fusion additive manufacturing
| Autor: | Yukihiko Inoue, Yasuyuki Fujiya, Toshiya Watanabe, Keisuke Kamitani, Saneyuki Goya, Noriko Yamazaki, Masahiko Toyoda, Yuzuru Ogura, Noriko Watari |
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| Rok vydání: | 2018 |
| Předmět: |
Technology
spatter Science (General) Materials science Evaporation 02 engineering and technology Two-fluid model 01 natural sciences evaporation Physics::Fluid Dynamics Q1-390 two-fluid model 0103 physical sciences 010306 general physics Fluid Flow and Transfer Processes Fusion plume Mechanical Engineering Knudsen layer 021001 nanoscience & nanotechnology Plume Chemical engineering knudsen layer Metal powder heat counterflow 0210 nano-technology additive manufacturing |
| Zdroj: | Journal of Fluid Science and Technology, Vol 13, Iss 2, Pp JFST0010-JFST0010 (2018) |
| ISSN: | 1880-5558 |
| DOI: | 10.1299/jfst.2018jfst0010 |
| Popis: | This paper reports our simulations of the metal powder fusion additive manufacturing process based on a two-fluid model. In simulations of metal behavior in which heat is applied by high-density energy sources (e.g., laser or electron beam), the aspects that need to be correctly modeled include boiling and evaporation, as well as melting and solidification. The potential of the two-fluid model to clarify numerous physical phenomena—deep penetration, plume generation, spatter generation due to interfacial pressure differences between gas and liquid phases, and the transport of spatter with high-speed-plume flow—are shown from a perspective that departs from conventional interpretations. This paper compares and discusses the results of simulating the penetration and width of single beads and experimental results. |
| Databáze: | OpenAIRE |
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