한국산업융합학회 논문집 (Journal of the Korean Society of Industry Convergence)
- 제10권4호
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- Pages.285-289
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- 2007
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- 1226-833X(pISSN)
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- 2765-5415(eISSN)
PET 용기 제작을 위한 프리폼 사출 성형에 대한 수치적 연구
Numerical Study on Preform Injection Molding for the PET Bottles Manufacturing
- Kwon, Chang-Oh (Dong-A Precision Ind. Co. Ltd.) ;
- Kim, Jong-Deok (Korea Institute of Industrial Technology) ;
- Kim, Jeong-Soon (Ajou Motor College)
- 투고 : 2007.09.05
- 심사 : 2007.11.23
- 발행 : 2007.11.30
초록
This study presents the preform injection molding of the injection stretch-blow molding process for PET bottles. The numerical analysis of the injection molding of a preform is considered in this paper using CAE with a view to minimize the warpage. In order to determine the design parameters and processing conditions in injection molding, it is very important to establish the numerical model with physical phenomenon. In this study, a three dimensional model has been introduced for the purpose and flow simulations of filling, post-filling and cooling process are carried out. The simulations resulted in the warpage in good agreement with the measurements. Also, from the result of numerical analysis, we appropriate -ly predicted the warpage, deformation and thickness distribution along the preform wall.