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標題:Study on the Deviation and Internal Mechanism between Numerical Simulation and Experiments in Injection Molding Product Development
學年108
學期1
發表日期2019/12/18
作品名稱Study on the Deviation and Internal Mechanism between Numerical Simulation and Experiments in Injection Molding Product Development
作品名稱(其他語言)
著者Chao-Tsai Huang; Yi-Hsuan Hsu Po-Hsuan Chen; Wen-Ren Jong
作品所屬單位
出版者
會議名稱APCOM2019
會議地點Taipei, Taiwan
摘要Recently, many Internet of Things (IoT) have been proposed and developing to industry and markets. They drive people to design and create an automatic production environment. Before executing automatic production, how to retain good quality for injection products is one of the crucial factors. To retain good quality, it is commonly using CAE to assist from original design to revision and to fabrication. However, even using CAE, it doesn’t guarantee the quality factors obtained from CAE can be applied to real experiments. In this study, firstly we have focused on what the major factors were to cause the difference between CAE simulation and real testing on the warpage quality. We further applied numerical simulation to decouple what the main driving forces are to make the difference between simulation and experiment. Results showed that in the original process setting, the warpage difference between simulation prediction and experiment is 0.34 mm. We further found out the major difference came from the injection filling response is too slow (delayed about 29%) and packing pressure is insufficient (23% lower) in real experiment comparing to simulation prediction. Moreover, after calibrate the machine response the warpage difference between simulation prediction and experiment is reduced to 0.12 mm. It is improved about 65% in accuracy. Moreover, we have introduced viscoelastic (VE) effect into this study. Result showed that in the presence of the VE effect the warpage difference between simulation prediction and experiment is further reduced to 0.04 mm. Obviously, the VE has a great impact in this case study. However, the influence of VE is great or not for other cases that should be further studied.
關鍵字injection molding;warpage;deviation between CAE and experiment
語言中文
收錄於
會議性質國際
校內研討會地點
研討會時間20191218~20191220
通訊作者
國別中華民國
公開徵稿
出版型式
出處APCOM2019論文集
相關連結
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