INVESTIGATION ON THE DEVIATION DIFFERENCE BETWEEN NUMERICAL SIMULATION AND EXPERIMENTS IN INJECTION MOLDING PRODUCT DEVELOPMENT
學年 108
學期 1
發表日期 2019-09-04
作品名稱 INVESTIGATION ON THE DEVIATION DIFFERENCE BETWEEN NUMERICAL SIMULATION AND EXPERIMENTS IN INJECTION MOLDING PRODUCT DEVELOPMENT
作品名稱（其他語言）
著者 Chao-Tsai Huang1; Po-Hsuan Chen1; Yi-Hsuan Hsu1; Wen-Ren Jong2; Rong-Yeu Chang3
作品所屬單位
出版者
會議名稱 Polymer Engineering and Science International 2019
會議地點 Yonezawa, Japan
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. Moreover, after calibrate the machine response the warpage difference between simulation and experiment has been reduced to 0.12 mm. Obviously, it has been 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 and experiment is further reduced to 0.04 mm. Clearly, 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;numerical simulation;warpage;viscoelastic (VE) effect
語言 en_US
收錄於
會議性質 國際
校內研討會地點 無
研討會時間 20190904~20190907
通訊作者
國別 JPN
公開徵稿
出版型式
出處 Proceedings of the Polymer Engineering and Science International 2019
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/118527 )