Micro-powder injection molding of micro-structures
In this project, a feasible study on the production of 316L stainless steel micro-structures by micro-powder injection molding (micro-PIM) is presented. Three types of micro-structures were molded and the molding was conducted on a conventional injection molding machine. Based on the characteristics...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2012
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| Online Access: | http://hdl.handle.net/10356/50448 |
| _version_ | 1826112612974198784 |
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| author | Lim, Shu Ling. |
| author2 | Loh Ngiap Hiang |
| author_facet | Loh Ngiap Hiang Lim, Shu Ling. |
| author_sort | Lim, Shu Ling. |
| collection | NTU |
| description | In this project, a feasible study on the production of 316L stainless steel micro-structures by micro-powder injection molding (micro-PIM) is presented. Three types of micro-structures were molded and the molding was conducted on a conventional injection molding machine. Based on the characteristics of the mold inserts and the feedstock, suitable molding parameters were selected. Some requirements for the production of the micro-structures were discussed. For example, high melt temperature was required. The study showed that 316L stainless steel micro-needles of tip diameter 10 μm and 20 μm, micro-square pillars of 80 x 80 μm and 100 x 100 μm, and micro-circle pillars of Ø60 x 191 μm depth and Ø80 x 196 μm depth can be injection molded. However, incomplete filling occurred in all the micro-structures, especially those away from the gate. The molded parts were successfully debound and sintered except for micro-circle pillars of Ø60 x 191 μm depth which bent after debinding. |
| first_indexed | 2024-10-01T03:09:55Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/50448 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:09:55Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | ntu-10356/504482023-03-04T18:43:51Z Micro-powder injection molding of micro-structures Lim, Shu Ling. Loh Ngiap Hiang School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering In this project, a feasible study on the production of 316L stainless steel micro-structures by micro-powder injection molding (micro-PIM) is presented. Three types of micro-structures were molded and the molding was conducted on a conventional injection molding machine. Based on the characteristics of the mold inserts and the feedstock, suitable molding parameters were selected. Some requirements for the production of the micro-structures were discussed. For example, high melt temperature was required. The study showed that 316L stainless steel micro-needles of tip diameter 10 μm and 20 μm, micro-square pillars of 80 x 80 μm and 100 x 100 μm, and micro-circle pillars of Ø60 x 191 μm depth and Ø80 x 196 μm depth can be injection molded. However, incomplete filling occurred in all the micro-structures, especially those away from the gate. The molded parts were successfully debound and sintered except for micro-circle pillars of Ø60 x 191 μm depth which bent after debinding. Bachelor of Engineering (Mechanical Engineering) 2012-06-04T08:35:59Z 2012-06-04T08:35:59Z 2012 2012 Final Year Project (FYP) http://hdl.handle.net/10356/50448 en Nanyang Technological University 88 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Mechanical engineering Lim, Shu Ling. Micro-powder injection molding of micro-structures |
| title | Micro-powder injection molding of micro-structures |
| title_full | Micro-powder injection molding of micro-structures |
| title_fullStr | Micro-powder injection molding of micro-structures |
| title_full_unstemmed | Micro-powder injection molding of micro-structures |
| title_short | Micro-powder injection molding of micro-structures |
| title_sort | micro powder injection molding of micro structures |
| topic | DRNTU::Engineering::Mechanical engineering |
| url | http://hdl.handle.net/10356/50448 |
| work_keys_str_mv | AT limshuling micropowderinjectionmoldingofmicrostructures |