Simulation-Based Optimization of Cure Cycle of Large Area Compression Molding for LED Silicone Lens
Three-dimensional heat transfer-curing simulation was performed for the curing process by introducing a large area compression molding for simultaneous forming and mass production for the lens and encapsulants in the LED molding process. A dynamic cure kinetics model for the silicone resin was adopt...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/573076 |
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| author | Min-Jae Song Kwon-Hee Kim Seok-Kwan Hong Jeong-Won Lee Jeong-Yeon Park Gil-Sang Yoon Heung-Kyu Kim |
| author_facet | Min-Jae Song Kwon-Hee Kim Seok-Kwan Hong Jeong-Won Lee Jeong-Yeon Park Gil-Sang Yoon Heung-Kyu Kim |
| author_sort | Min-Jae Song |
| collection | DOAJ |
| description | Three-dimensional heat transfer-curing simulation was performed for the curing process by introducing a large area compression molding for simultaneous forming and mass production for the lens and encapsulants in the LED molding process. A dynamic cure kinetics model for the silicone resin was adopted and cure model and analysis result were validated and compared through a temperature measurement experiment for cylinder geometry with cure model. The temperature deviation between each lens cavity could be reduced by implementing a simulation model on the large area compression mold and by optimizing the location of heat source. A two-step cure cycle was constructed to reduce excessive reaction peak at the initial stage and cycle time. An optimum cure cycle that could reduce cycle time by more than 29% compared to a one-step cure cycle by adjusting dwell temperature, heating rate, and dwell time was proposed. It was thus confirmed that an optimization of large area LED lens molding process was possible by using the present experiment and the finite element method. |
| format | Article |
| id | doaj-art-c766061c0308443893c6662f0d02d107 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-c766061c0308443893c6662f0d02d1072025-02-03T06:08:31ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/573076573076Simulation-Based Optimization of Cure Cycle of Large Area Compression Molding for LED Silicone LensMin-Jae Song0Kwon-Hee Kim1Seok-Kwan Hong2Jeong-Won Lee3Jeong-Yeon Park4Gil-Sang Yoon5Heung-Kyu Kim6Molds & Dies Technology R&BD Group, Korea Institute of Industrial Technology, 7-47 Songdo-dong, Yeonsu-gu, Incheon 406-840, Republic of KoreaDepartment of Mechanical Engineering, Korea University, Anam-dong, Seongbuk-gu, Seoul 136-713, Republic of KoreaMolds & Dies Technology R&BD Group, Korea Institute of Industrial Technology, 7-47 Songdo-dong, Yeonsu-gu, Incheon 406-840, Republic of KoreaMolds & Dies Technology R&BD Group, Korea Institute of Industrial Technology, 7-47 Songdo-dong, Yeonsu-gu, Incheon 406-840, Republic of KoreaMolds & Dies Technology R&BD Group, Korea Institute of Industrial Technology, 7-47 Songdo-dong, Yeonsu-gu, Incheon 406-840, Republic of KoreaMolds & Dies Technology R&BD Group, Korea Institute of Industrial Technology, 7-47 Songdo-dong, Yeonsu-gu, Incheon 406-840, Republic of KoreaDepartment of Automotive Engineering, Kookmin University, 77 Jeongneung-ro, Seongbuk-gu, Seoul 136-702, Republic of KoreaThree-dimensional heat transfer-curing simulation was performed for the curing process by introducing a large area compression molding for simultaneous forming and mass production for the lens and encapsulants in the LED molding process. A dynamic cure kinetics model for the silicone resin was adopted and cure model and analysis result were validated and compared through a temperature measurement experiment for cylinder geometry with cure model. The temperature deviation between each lens cavity could be reduced by implementing a simulation model on the large area compression mold and by optimizing the location of heat source. A two-step cure cycle was constructed to reduce excessive reaction peak at the initial stage and cycle time. An optimum cure cycle that could reduce cycle time by more than 29% compared to a one-step cure cycle by adjusting dwell temperature, heating rate, and dwell time was proposed. It was thus confirmed that an optimization of large area LED lens molding process was possible by using the present experiment and the finite element method.http://dx.doi.org/10.1155/2015/573076 |
| spellingShingle | Min-Jae Song Kwon-Hee Kim Seok-Kwan Hong Jeong-Won Lee Jeong-Yeon Park Gil-Sang Yoon Heung-Kyu Kim Simulation-Based Optimization of Cure Cycle of Large Area Compression Molding for LED Silicone Lens Advances in Materials Science and Engineering |
| title | Simulation-Based Optimization of Cure Cycle of Large Area Compression Molding for LED Silicone Lens |
| title_full | Simulation-Based Optimization of Cure Cycle of Large Area Compression Molding for LED Silicone Lens |
| title_fullStr | Simulation-Based Optimization of Cure Cycle of Large Area Compression Molding for LED Silicone Lens |
| title_full_unstemmed | Simulation-Based Optimization of Cure Cycle of Large Area Compression Molding for LED Silicone Lens |
| title_short | Simulation-Based Optimization of Cure Cycle of Large Area Compression Molding for LED Silicone Lens |
| title_sort | simulation based optimization of cure cycle of large area compression molding for led silicone lens |
| url | http://dx.doi.org/10.1155/2015/573076 |
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