사출성형해석 연구를 이용한 게이트 밸런스 계산식의 검증
Verification of gate balancing equation using injection molding analysis
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초록
In a multi-cavity mold having a runner layout of a fish bone structure, problems of unbalanced filling between cavities occur constantly. Unbalanced charging lowers the dimensional accuracy of a molded article and causes deformation after molding. To solve this problem, the gate size connected to each cavity is adjusted using the BGV (Balanced Gate Value) equation. In this paper, in order to solve the filling imbalance problem of the runner layout mold of fish bone structure through injection molding analysis study, we compared the charging imbalance phenomenon before and after improvement after adjusting the gate size by applying BGV equation. From the results of the molding analysis, the shrinkage ratio before and after the improvement of the molded article was improved by only about 0.08%. Based on these results, it was confirmed that the charging imbalance problem was not significantly improved even when the BGV equation was applied
Abstract
In a multi-cavity mold having a runner layout of a fish bone structure, problems of unbalanced filling between cavities occur constantly. Unbalanced charging lowers the dimensional accuracy of a molded article and causes deformation after molding. To solve this problem, the gate size connected to each cavity is adjusted using the BGV (Balanced Gate Value) equation. In this paper, in order to solve the filling imbalance problem of the runner layout mold of fish bone structure through injection molding analysis study, we compared the charging imbalance phenomenon before and after improvement after adjusting the gate size by applying BGV equation. From the results of the molding analysis, the shrinkage ratio before and after the improvement of the molded article was improved by only about 0.08%. Based on these results, it was confirmed that the charging imbalance problem was not significantly improved even when the BGV equation was applied
참고문헌 (9)
- Wang, M. L., "Molding Simulation Theory and Practice", pp.220~224 (2018), Hanser
- Kang, C.M., "Effects of Processing Factors on Filling Imbalances in Multi-cavity Injection Mold", Proceedings of the Korean Society for Technology of Plasticity 2004 Autumn Conference, 54(57), pp.54~57 (2004)
- Beaumont, J.P., "Mold Filling Imbalances in Geometrically Balanced Runner systems", Journal of Injection Molding Technology, 1(3), pp.133~135 (1997)
- 권윤숙, "균형충전을 위한 HR3P 금형 구조에서의 공정의 최적화", 한국정밀공학회지, 26(3), pp.98~102 (2009), 한국정밀공학회
- 제덕근, "다수 캐비티를 갖는 3매 구성 사출금형에서의 충전 불균형", 한국정밀공학회지, 21(6), pp.117~121 (2004), 한국정밀공학회
- 정영득, "사출금형에서 균형충전을 위한 새로운 러너시스템 멜트버퍼", 소성∙가공, 18(2), pp.122~127 (2009), 한국소성∙가공학회
- Lim S. H., "Injection Mold Design", pp.173~175 (2011), Boseongkak
- Beaumont, J. P., "Runner and Gating Design Handbook", pp.142~143 (2004), Hanser
- 한성렬, "자동차 스티어링 휠에 조립되는 플라스틱 베젤의 변형 최적화에 관한 연구", 한국기계가공학회지, 16(5), pp.105~112 (2017), 한국기계가공학회[DOI]