Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Study on Optimization of Board Molding Process with GMPU Technology

GMPU 공법을 이용한 보드 성형 공정 최적화 연구

  • Choi, Dong-Jo (Institute of e-Vehicle Technology, Ulsan Univ.) ;
  • Park, Hong-Seok (Department of Mechanical and Automotive Engineering, Ulsan Univ.)
  • 최동조 (울산대학교 자동차선박기술대학원) ;
  • 박홍석 (울산대학교 기계공학자동자공학과)
  • Published : 2009.03.01
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Abstract

Lightweight board has been used for manufacturing various fields of automotive interior trims for years. The GMPU board was constructed with glass fiber mat, honeycomb and polyurethane foamed using polyol and isocyanate materials which were sprayed by robot that is interlocked foaming machine. For more lightweight and cost reduction this paper shows how to optimize GMPU process parameters that related to foaming condition, robot position and robot velocity for polyurethane weight. The results show that flexural strength and modulus of board's specimens were evaluated by robot velocity and moving pattern. Based on that, a innovative process was developed for more lightweight and cost reduction.

Keywords

References

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