Design & Manufacturing

Korean Society of Die & Mold Engineering (한국금형공학회)
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Analysis for injection molding and in-mold coating of automotive armrests

자동차 암레스트의 사출성형과 인몰드코팅에 관한 해석

  • Park, Jong-Lak (Dep. of Aeronautical & Mechanical Design Eng., Korea Nat'l Univ. of Transportation) ;
  • Lee, Ho-Sang (Dep. of Aeronautical & Mechanical Design Eng., Korea Nat'l Univ. of Transportation)
  • 박종락 (한국교통대학교 항공기계설계학과) ;
  • 이호상 (한국교통대학교 항공기계설계학과)
  • Received : 2019.02.21
  • Accepted : 2019.03.31
  • Published : 2019.03.31
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Abstract

Analytical and experimental study were carried out in order to achieve simultaneous coating and injection molding of an automotive armrest. A mold was designed to be included one core and two cavities, which were composed of a substrate cavity and a coating cavity. The materials used were PC/ABS for substrate and 2-component Polyurethane for coating. The predicted flow patterns were in good agreement with experimental results in injection molding and in-mold coating. Based on analysis and experiment, it was found that the optimal processing conditions were packing pressure of 90MPa and holding time of 7sec.

Keywords

Acknowledgement

Supported by : 산업통상자원부, 한국연국재단

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