Design & Manufacturing

Korean Society of Die & Mold Engineering (한국금형공학회)
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A Study on Injection Condition Optimization and Deformation Improvement using Taguchi Design of Experiments

다구찌 실험계획법을 이용한 사출 조건 최적화와 변형 개선에 대한 연구

  • Received : 2023.06.17
  • Accepted : 2023.06.30
  • Published : 2023.06.30
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Abstract

In this study, we conducted a study on the optimization of injection molding conditions to minimize deformation of plastic product. The charging management system housing of the vehicle was selected as the research subject. Melting temperature, cooling temperature, packing time, and packing pressure were selected as the main factors expected to affect the deformation of molded products. Each main factor was divided into 5 levels. Optimization of injection molding conditions to minimize deformation was performed using the Taguchi Method. We performed an analysis of variance (ANOVA) to identify significant factors affecting the deformation of plastic product. In order to select injection molding conditions that minimize deformation of plastic products, injection molding analysis was additionally performed for insignificant factors. We then compared the deformation of the molded part before and after optimization. As a result of comparing the injection analysis results of the basic conditions and the injection analysis results of the optimal conditions, it was confirmed that the amount of deformation after optimization was improved by about 10.9%.

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References

  1. Kim, B.S. and Han, S.Y., Prediction of Weight of Spiral Molding Using Injection Molding Analysis and Machine Learning, Design & Manufacturing, Vol. 17, No. 1, pp. 27-32, 2023.
  2. Park, C.H., Pyo, B.G., Choi, D.H. and Koo, M.S., Design optimization of an automotive injection molded part for minimizing injection pressure and preventing weldlines, Transactions of the Korean Society of Automotive Engineers, Vol. 19, No. 1, pp. 66-72, 2011.
  3. Yoo, M.J., Han, S.R. and Kim, K.A., Influences of rib design on the product quality of injection molded, Journal of the Korean Society of Mechanical Technology, Vol. 24, No. 6, pp. 1166-1171, 2022.
  4. Sung, S.M. and Jung, S.J., A study on the motorcycle lear cowl injection molding by CAE analysis, Journal of the Korea Society of Die & Mold Engineering, Vol. 13, No. 4, pp. 34-39, 2019.
  5. Choi, H.J., Park, C.W. and Choi, S.D., Analyses on deformation patterns depending on the injection process for rear lamp reflectors of automotive, Journal of the Korean Society of Manufacturing Process Engineers, Vol. 9, No. 4, pp. 32-37, 2010.
  6. Lee, Y.C., The Improvement of Weldline and Flow mark Defection by using Injection Molding Analysis, Journal of the Korean Society for Precision Engineering, Vol. 30, No. 12, pp. 1295-1301, 2013. https://doi.org/10.7736/KSPE.2013.30.12.1295
  7. Han, S.R., A study on the deformation optimization of a plastic bezel assembled on the steering wheel of an automobiles, Journal of the Korean Society of Manufacturing Process Engineers, Vol. 16, No. 5, pp. 105-112, 2017. https://doi.org/10.14775/ksmpe.2017.16.5.105
  8. Yoo, M.J., Kim, K.A. and Han, S.R., Optimization of feed system of base mold for washing machine using CAE, Journal of the Korea Society of Die & Mold Engineering, Vol. 15, No. 1, pp. 1-7, 2021.
  9. Choi, K.K., Hong, S.M. and Han, S.R., Effect of flow pattern of coolant for injection mold on the deformation of injection molding, Journal of the Korean Society of Manufacturing Process Engineers, Vol. 14, No. 4, pp. 92-99, 2015. https://doi.org/10.14775/ksmpe.2015.14.4.092
  10. Kim, K.A. and Han, S.R., A study on deformation improvement of plastic charging plug for electric car, Journal of the Korean Society of Mechanical Technology, Vol. 21, No. 4, pp. 653-658, 2019. https://doi.org/10.17958/ksmt.21.4.201908.653
  11. Kim, K.H. and Choi, J.Y., Design of Injection Molding Process Factors Blower Fan using the Taguchi Method, Journal of the Korean Society of Manufacturing Process Engineers, Vol. 11, No. 3, pp. 92-97, 2012.
  12. Park, E.S., Shin, S.E. and Han, S.R., Optimization of injection molding process for plastic keypad on mobile phone, Journal of the Korea Society of Die & Mold Engineering, Vol. 11, No. 1, pp. 34-38, 2017.
  13. Park, D.Y., Park, D.H. and Lee, H.S., A study on the residual stress and spring back of thermoformed films, Design & Manufacturing, Vol. 16, No. 1, pp. 27-35, 2022.
  14. Kim, K.A. and Han, S.R., A study on the optimum molding of plastic pulley using numerical analysis, Journal of the Korea Society of Die & Mold Engineering, Vol. 14, No. 1, pp. 30-35, 2020.