Improved contact lens injection molding production by 3D printed conformal cooling channels

Y. F. Lin, J. R. Wu, B. H. Liu, W. C.J. Wei, A. B. Wang, R. C. Luo

研究成果: Conference contribution

3 引文 斯高帕斯(Scopus)

摘要

In this research, the combination of finite element simulation and 3D printing enabled casting was adapted to overcome the restrictions on traditional machining processes, we presented a fabrication method for complex injection molding mold pieces with a shorter time and lower processing cost than traditional machining and laser-or e-beam-based 3D printing methods. Based on the plastic injection molding simulation results, which considered the cooling rate of the contact lens mold and the cooling time of each part of the mold, we concluded that the design of conformal cooling channel locating at contact lens mold had little influence on the period of injection. When the mold cavities had smaller total volume ratio than the sprue, such as our contact lens mold, the cooling time of the sprue would be longer than the mold cavities, therefore more attention should be paid on the cooling of the sprue. However, the simulation results showed that the cooling efficiency did not increased significantly when a conformal cooling channel was placed in the sprue bush. But the cooling time reduce about 20%. In other words, the cooling of sprue bush dominated production cycle time. Therefore, a smart mold with real-time temperature monitoring was made with 3DP and mold flow simulation for this work.

原文English
主出版物標題SII 2017 - 2017 IEEE/SICE International Symposium on System Integration
發行者Institute of Electrical and Electronics Engineers Inc.
頁面89-94
頁數6
ISBN(電子)9781538622636
DOIs
出版狀態Published - 2018 二月 1
事件2017 IEEE/SICE International Symposium on System Integration, SII 2017 - Taipei, Taiwan
持續時間: 2017 十二月 112017 十二月 14

出版系列

名字SII 2017 - 2017 IEEE/SICE International Symposium on System Integration
2018-January

Other

Other2017 IEEE/SICE International Symposium on System Integration, SII 2017
國家/地區Taiwan
城市Taipei
期間17-12-1117-12-14

All Science Journal Classification (ASJC) codes

  • 建模與模擬
  • 儀器
  • 人工智慧
  • 電腦科學應用
  • 工程(雜項)
  • 材料科學(雜項)
  • 控制和優化

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