Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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A Study on the Deformation Optimization of a Plastic Bezel Assembled on the Steering Wheel of an Automobiles

자동차 스티어링 휠에 조립되는 플라스틱 베젤의 변형 최적화에 관한 연구

  • Han, Seong-Ryoel (Department of Metalmold Design Engineering, Kongju National University)
  • 한성렬 (공주대학교 금형설계공학과)
  • Received : 2017.03.30
  • Accepted : 2017.06.01
  • Published : 2017.10.31
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Abstract

In this study, plastics were deformed after molding due to the characteristics of the material. The Taguchi experimental design method was utilized to find the molding conditions that minimized deformation of the plastic bezel to be assembled in an automotive steering wheel. The injection molding conditions applied to the experimental design method are the melt temperature, cavity plate coolant temperature, core plate coolant temperature, and cooling time. Each condition was divided into five levels, and a total of 25 experiments were planned. However, instead of performing 25 actual molding experiments, the injection molding analysis was performed using the Moldflow program, and the deformation values for each molding analysis were obtained. The optimal molding conditions were obtained from these deformation values. The actual injection molding experiment using optimal molding conditions was compared with the deformation amount of the current molded product. The deformation was measured using a precise 3D scanner. The deformation amount of the molded product under optimal molding conditions was 16.1% lower than the deformation amount of the current molded product.

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References

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