Numerical simulation and experimental investigation of cavity filling in powder injection rapid prototyping process
Cavity filling of a powder-binder mixture is a crucial stage in a newly proposed powder injection rapid prototyping (PIRP) and powder injection molding (PIM) processes, in which a metallic or ceramic powder-binder mixture is heated and injected into a mold cavity to create a solid layer of a green p...
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| Format: | Thesis |
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2008
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| Online Access: | http://hdl.handle.net/10356/6043 |
| _version_ | 1811692217337643008 |
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| author | Liu, Bilon. |
| author2 | Gong, Thomas Haiqing |
| author_facet | Gong, Thomas Haiqing Liu, Bilon. |
| author_sort | Liu, Bilon. |
| collection | NTU |
| description | Cavity filling of a powder-binder mixture is a crucial stage in a newly proposed powder injection rapid prototyping (PIRP) and powder injection molding (PIM) processes, in which a metallic or ceramic powder-binder mixture is heated and injected into a mold cavity to create a solid layer of a green part. The essential problem in the cavity filling is the non-homogeneous powder distribution in the green part caused by shear-induced powder migration and flow convection, which may influence dimensional accuracy and mechanical properties of final PIRP parts. The objectives of this study focus on the investigation of flow behavior, heat transfer and powder migration characteristics of cavity filling of a powder-binder mixture. |
| first_indexed | 2024-10-01T06:32:16Z |
| format | Thesis |
| id | ntu-10356/6043 |
| institution | Nanyang Technological University |
| last_indexed | 2024-10-01T06:32:16Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | ntu-10356/60432023-03-11T17:19:48Z Numerical simulation and experimental investigation of cavity filling in powder injection rapid prototyping process Liu, Bilon. Gong, Thomas Haiqing School of Mechanical and Production Engineering DRNTU::Engineering::Mechanical engineering::Prototyping Cavity filling of a powder-binder mixture is a crucial stage in a newly proposed powder injection rapid prototyping (PIRP) and powder injection molding (PIM) processes, in which a metallic or ceramic powder-binder mixture is heated and injected into a mold cavity to create a solid layer of a green part. The essential problem in the cavity filling is the non-homogeneous powder distribution in the green part caused by shear-induced powder migration and flow convection, which may influence dimensional accuracy and mechanical properties of final PIRP parts. The objectives of this study focus on the investigation of flow behavior, heat transfer and powder migration characteristics of cavity filling of a powder-binder mixture. Doctor of Philosophy (MPE) 2008-09-17T11:05:26Z 2008-09-17T11:05:26Z 2000 2000 Thesis http://hdl.handle.net/10356/6043 Nanyang Technological University application/pdf |
| spellingShingle | DRNTU::Engineering::Mechanical engineering::Prototyping Liu, Bilon. Numerical simulation and experimental investigation of cavity filling in powder injection rapid prototyping process |
| title | Numerical simulation and experimental investigation of cavity filling in powder injection rapid prototyping process |
| title_full | Numerical simulation and experimental investigation of cavity filling in powder injection rapid prototyping process |
| title_fullStr | Numerical simulation and experimental investigation of cavity filling in powder injection rapid prototyping process |
| title_full_unstemmed | Numerical simulation and experimental investigation of cavity filling in powder injection rapid prototyping process |
| title_short | Numerical simulation and experimental investigation of cavity filling in powder injection rapid prototyping process |
| title_sort | numerical simulation and experimental investigation of cavity filling in powder injection rapid prototyping process |
| topic | DRNTU::Engineering::Mechanical engineering::Prototyping |
| url | http://hdl.handle.net/10356/6043 |
| work_keys_str_mv | AT liubilon numericalsimulationandexperimentalinvestigationofcavityfillinginpowderinjectionrapidprototypingprocess |