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A Study of Surface Improvement for Automotive Part by Injection Mold of Electronic Heating

전류가열 사출금형에 의한 자동차 부품의 표면개선에 관한 연구

  • 최동혁 (동국실업 주식회사) ;
  • 황현태 (울산테크노파크 자동차부품기술연구소) ;
  • 손동일 (동국실업 주식회사) ;
  • 김대일 (울산대학교 첨단소재공학부)
  • Received : 2018.01.02
  • Accepted : 2018.01.25
  • Published : 2018.02.28

Abstract

The light-weight of the research and development materials is actively carried out by overseas automobile companies and technology development continues in Korea. For the sake of fuel efficiency, the development of lightweight technology by improving the manufacturing method has been very effective. Recently, to maximize the effects of light weight, automotive interior parts have been applied by the micro-cellular injection molding using supercritical fluids and we call the Mucell manufacturing. This technique causes a problem in the quality of the surface of the products, because the shooting cells are revealed as the surface layer of the products by forming micro cells at the center of the products during injection molding. To overcome these phenomenon, we increased the temperature of injection molding using joule heating until critical value. In this study, we have predicted the problem of Mucell injection molding through the finite element analysis as changed the temperature by joule heating. From the result of finite element analysis, we have determined the optimized process and made the injection mold included electric current heating system with Mucell manufacturing analyzed the surface characteristics of the injection product according to changing mold temperature.

Keywords

References

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