Design & Manufacturing

Korean Society of Die & Mold Engineering (한국금형공학회)
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A springback analysis of LCD TV bottom chassis

LCD TV BOTTOM CHASSIS 스프링백 해석

  • Lee, Sung-Geun (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology) ;
  • Jung, Jin-Oh (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology) ;
  • Kim, Seung-Kyu (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology) ;
  • Chung, Wan-Jin (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology)
  • 이성근 (서울과학기술대학교 기계시스템 디자인 공학과) ;
  • 정진오 (서울과학기술대학교 기계시스템 디자인 공학과) ;
  • 김승규 (서울과학기술대학교 기계시스템 디자인 공학과) ;
  • 정완진 (서울과학기술대학교 기계시스템 디자인 공학과)
  • Received : 2012.01.09
  • Accepted : 2012.05.11
  • Published : 2012.06.29
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Abstract

In the manufacturing of a LCD TV bottom chassis, the distortion after forming should be suppressed below pre-defined amount to avoid contact with electric components. Finite element analysis procedure of forming and springback of a LCD TV bottom chassis is developed to investigate the distortion behaviour. It is shown that after the first forming large distortion occur due to uneven metal flow induced by various embossings. In the second forming, distortion is decreased by introducing bead that absorbs the excessive metal flow. It is proved that analysis method could describe these behaviour effectively. The developed analysis method can be used to find the proper location and shape of bead more quickly and effectively.

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