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

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Robust Design of Gate Locations and Process Parameters for Minimizing Injection Pressure of an Automotive Dashboard

자동차 대시보드의 사출압력 최소화를 위한 게이트 위치와 공정조건의 강건설계

  • Kim, Kwang-Ho (Dept. of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Park, Jong-Cheon (Dept. of Mechanical Engineering, Kumoh National Institute of Technology)
  • 김광호 (금오공과대학교 기계공학과) ;
  • 박종천 (금오공과대학교 기계공학과)
  • Received : 2014.09.23
  • Accepted : 2014.12.11
  • Published : 2014.12.31
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Abstract

In this paper, multiple gate locations and process conditions under concern are automatically optimized by considering robustness to minimize the injection pressure required to mold an automotive dashboard. Computer simulation-based experiments using orthogonal arrays(OA) and a design-range reduction algorithm are consolidated into an iterative search scheme, which is then used as a tool for the optimization process. The robustness of a design is evaluated using an OA-based simulation of process fluctuations due to noise as well as the signal-to-noise ratio. The optimal design solution for the automotive dashboard shows that the robustness of the injection pressure is significantly improved when compared to the initial design. As a result, both the die clamping force and the pressure distribution in the part cavity are also much improved in terms of their robustness.

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