Development of novel technology for fabrication of three-dimensional micro-components
A three-plate mold was designed and fabricated. The mold is capable of facilitating evacuation of air in the cavity, thermal control, cavity pressure monitoring and dimensional variation. Experimental parameters were varied to observe the changes in the molding process by cavity pressure monitoring...
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| Format: | Research Report |
| Published: |
2008
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| Online Access: | http://hdl.handle.net/10356/6914 |
| _version_ | 1811695714068070400 |
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| author | Ong, Nan Shing. |
| author2 | School of Mechanical and Production Engineering |
| author_facet | School of Mechanical and Production Engineering Ong, Nan Shing. |
| author_sort | Ong, Nan Shing. |
| collection | NTU |
| description | A three-plate mold was designed and fabricated. The mold is capable of facilitating evacuation of air in the cavity, thermal control, cavity pressure monitoring and dimensional variation. Experimental parameters were varied to observe the changes in the molding process by cavity pressure monitoring and part weight measurements. It was found that the mold temperature is the most significant parameter that affects the filling process in the cavity. Injection pressure and injection rate were of secondary importance. However, injection rate becomes more important as compared to injection pressure, when the dimension of the cavity is reduced. The injection time was found to be insignificant in the filling process and can be neglected. Comparison of molded parts using different polymers was studied. POM, LLDPE and PS were used in the filling of a 50um thick cavity. The filling of the cavity was found to be better when POM is used when compared to LLDPE and PS. |
| first_indexed | 2024-10-01T07:27:51Z |
| format | Research Report |
| id | ntu-10356/6914 |
| institution | Nanyang Technological University |
| last_indexed | 2024-10-01T07:27:51Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | ntu-10356/69142020-06-01T10:44:38Z Development of novel technology for fabrication of three-dimensional micro-components Ong, Nan Shing. School of Mechanical and Production Engineering DRNTU::Engineering::Manufacturing::Product engineering A three-plate mold was designed and fabricated. The mold is capable of facilitating evacuation of air in the cavity, thermal control, cavity pressure monitoring and dimensional variation. Experimental parameters were varied to observe the changes in the molding process by cavity pressure monitoring and part weight measurements. It was found that the mold temperature is the most significant parameter that affects the filling process in the cavity. Injection pressure and injection rate were of secondary importance. However, injection rate becomes more important as compared to injection pressure, when the dimension of the cavity is reduced. The injection time was found to be insignificant in the filling process and can be neglected. Comparison of molded parts using different polymers was studied. POM, LLDPE and PS were used in the filling of a 50um thick cavity. The filling of the cavity was found to be better when POM is used when compared to LLDPE and PS. 2008-09-17T14:36:53Z 2008-09-17T14:36:53Z 2004 2004 Research Report http://hdl.handle.net/10356/6914 Nanyang Technological University application/pdf |
| spellingShingle | DRNTU::Engineering::Manufacturing::Product engineering Ong, Nan Shing. Development of novel technology for fabrication of three-dimensional micro-components |
| title | Development of novel technology for fabrication of three-dimensional micro-components |
| title_full | Development of novel technology for fabrication of three-dimensional micro-components |
| title_fullStr | Development of novel technology for fabrication of three-dimensional micro-components |
| title_full_unstemmed | Development of novel technology for fabrication of three-dimensional micro-components |
| title_short | Development of novel technology for fabrication of three-dimensional micro-components |
| title_sort | development of novel technology for fabrication of three dimensional micro components |
| topic | DRNTU::Engineering::Manufacturing::Product engineering |
| url | http://hdl.handle.net/10356/6914 |
| work_keys_str_mv | AT ongnanshing developmentofnoveltechnologyforfabricationofthreedimensionalmicrocomponents |