사출성형 CAE를 이용한 세탁기용 Base 성형용 금형의 유동 시스템 최적화
Optimization of feed system of base mold for washing machine using CAE
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초록
The position of the gate is one of the important factors for optimal injection molding. This is becauseinappropriate gate positions cannot fill the cavity uniformly, which can lead to defects such as contraction. In this study,CAE was performed on hot runner injection molding of the washing machine base and plasticity was compared bychanging gate position from existing gate position. A total of two alternatives have been applied to compare the plasticityof the washing machine base according to its optimal gate position. The gate position of the improved molds and the gateposition of the current mold is analyzed by injection molding analysis. The results of the fill time, the pressure at V/Pswitchover, clamping force, and deflection were compared. In washing machine base injection molding, the deflection wasreduced by about 3.76% in the improved mold 2. In improved mold 1, the fill time during injection molding was reducedby 3.32% to enable uniform charging, and the clamping force was reduced by 31.24%. We have confirmed that theposition of the gate can change the charging pressure and the clamping force and affect the quality and cost savings ofthe molded product.
Abstract
The position of the gate is one of the important factors for optimal injection molding. This is becauseinappropriate gate positions cannot fill the cavity uniformly, which can lead to defects such as contraction. In this study,CAE was performed on hot runner injection molding of the washing machine base and plasticity was compared bychanging gate position from existing gate position. A total of two alternatives have been applied to compare the plasticityof the washing machine base according to its optimal gate position. The gate position of the improved molds and the gateposition of the current mold is analyzed by injection molding analysis. The results of the fill time, the pressure at V/Pswitchover, clamping force, and deflection were compared. In washing machine base injection molding, the deflection wasreduced by about 3.76% in the improved mold 2. In improved mold 1, the fill time during injection molding was reducedby 3.32% to enable uniform charging, and the clamping force was reduced by 31.24%. We have confirmed that theposition of the gate can change the charging pressure and the clamping force and affect the quality and cost savings ofthe molded product.
참고문헌 (9)
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- 김경아, "전기차의 충전에 사용되는 플라스틱 플러그의 변형 개선에 관한 연구", 한국기계기술학회지, 21(4), pp.653~658 (2019), 한국기계기술학회[DOI]
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