Research on μ-Injection Compression Molding of Hybrid Optical Elements
碩士 === 國立臺灣科技大學 === 機械工程系 === 96 === This research conducted a novel micro injection compression molding (μ-ICM) process for fabrication of hybrid optical elements (HOEs). The micro compression motion is triggered by the percentage of peak filling pressure obtained by the data acquisition (DAQ) syst...
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ndltd-TW-096NTUS54890522016-05-13T04:15:15Z http://ndltd.ncl.edu.tw/handle/54326041383935224691 Research on μ-Injection Compression Molding of Hybrid Optical Elements 複合式光學元件微射壓成形之研究 Shian-Ming Lin 林先明 碩士 國立臺灣科技大學 機械工程系 96 This research conducted a novel micro injection compression molding (μ-ICM) process for fabrication of hybrid optical elements (HOEs). The micro compression motion is triggered by the percentage of peak filling pressure obtained by the data acquisition (DAQ) system. Experiments were implemented with different percentages of peak fill pressure, and the relationship between the trigger time and transfer ratio of the groove (TRG) were investigated. The Moldflow MPI software (Moldflow Co., USA) is used to simulate the filling and packing stages of HOEs. Comparison of short shot is preceded by simulation and experimentation. Results show that (1) the HOEs are fabricated successfully by the μ-ICM with a closed-loop pressure control, (2) the comparison of short shot is similar in simulation and experiment, (3) the TRG has been achieved as 99% when the trigger pressure is 15% of peak filling pressure with mold temperature 90°C and melt temperature 250°C, (4) the comparison of different mold insert materials show that the STAVAX with electroless plated Nickel (ELNi ) has better TRG than that of the oxygen-free copper (OFC) due to higher hardness of ELNi. Further research focuses on the μ-ICM of optical elements with micro structures to increase the optical performances. Chao-Chang A. Chen 陳炤彰 2008 學位論文 ; thesis 154 zh-TW |
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碩士 === 國立臺灣科技大學 === 機械工程系 === 96 === This research conducted a novel micro injection compression molding (μ-ICM) process for fabrication of hybrid optical elements (HOEs). The micro compression motion is triggered by the percentage of peak filling pressure obtained by the data acquisition (DAQ) system. Experiments were implemented with different percentages of peak fill pressure, and the relationship between the trigger time and transfer ratio of the groove (TRG) were investigated. The Moldflow MPI software (Moldflow Co., USA) is used to simulate the filling and packing stages of HOEs. Comparison of short shot is preceded by simulation and experimentation. Results show that (1) the HOEs are fabricated successfully by the μ-ICM with a closed-loop pressure control, (2) the comparison of short shot is similar in simulation and experiment, (3) the TRG has been achieved as 99% when the trigger pressure is 15% of peak filling pressure with mold temperature 90°C and melt temperature 250°C, (4) the comparison of different mold insert materials show that the STAVAX with electroless plated Nickel (ELNi ) has better TRG than that of the oxygen-free copper (OFC) due to higher hardness of ELNi. Further research focuses on the μ-ICM of optical elements with micro structures to increase the optical performances.
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author2 |
Chao-Chang A. Chen |
author_facet |
Chao-Chang A. Chen Shian-Ming Lin 林先明 |
author |
Shian-Ming Lin 林先明 |
spellingShingle |
Shian-Ming Lin 林先明 Research on μ-Injection Compression Molding of Hybrid Optical Elements |
author_sort |
Shian-Ming Lin |
title |
Research on μ-Injection Compression Molding of Hybrid Optical Elements |
title_short |
Research on μ-Injection Compression Molding of Hybrid Optical Elements |
title_full |
Research on μ-Injection Compression Molding of Hybrid Optical Elements |
title_fullStr |
Research on μ-Injection Compression Molding of Hybrid Optical Elements |
title_full_unstemmed |
Research on μ-Injection Compression Molding of Hybrid Optical Elements |
title_sort |
research on μ-injection compression molding of hybrid optical elements |
publishDate |
2008 |
url |
http://ndltd.ncl.edu.tw/handle/54326041383935224691 |
work_keys_str_mv |
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