Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Construction of Vehicle Door Impact Beam Using Hot Stamping Technology

핫스탬핑에 의한 자동차 도어 임팩트빔의 개발

  • Lee, Hyun-Woo (Research and Development Center, MSautotech.) ;
  • Hwang, Jung-Bok (Research and Development Center, MSautotech.) ;
  • Kim, Sun-Ung (Research and Development Center, MSautotech.) ;
  • Kim, Won-Hyuck (Research and Development Center, MSautotech.) ;
  • Yoo, Seung-Jo (Research and Development Center, MSautotech.) ;
  • Lim, Hyun-Woo (School of Mechanical and Automobile Engineering, Univ. of Ulsan) ;
  • Yum, Young-Jin (School of Mechanical and Automobile Engineering, Univ. of Ulsan)
  • 이현우 (엠에스오토텍 기술연구소) ;
  • 황정복 (엠에스오토텍 기술연구소) ;
  • 김선웅 (엠에스오토텍 기술연구소) ;
  • 김원혁 (엠에스오토텍 기술연구소) ;
  • 유승조 (엠에스오토텍 기술연구소) ;
  • 임현우 (울산대학교 기계자동차공학과) ;
  • 염영진 (울산대학교 기계자동차공학과)
  • Received : 2009.12.04
  • Accepted : 2010.04.09
  • Published : 2010.06.01
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Abstract

A vehicle door impact beam made of a thin sheet of steel has been constructed using hot stamping technology with the aim of ensuring occupant safety in the event of a side collision. This technology has been used to increase the strength of the vehicle body parts and to reduce the weight of the door impact beam as well as the number of work processes. Mechanical tests were performed to determine the material properties of the hot-stamped specimen and the results of the tests were used as input data in stamping and structural simulation in order to obtain the optimal design of door impact beam. The strength of the hot-stamped door impact beam increased to a value that was 102% higher than that of conventional pipe-shaped door impact beam. A weight reduction of 34% was also achieved.

자동차의 측면 충돌시 승객을 보호하고자 박판재를 이용하여 자동차의 도어 임팩트빔을 핫스탬핑공법을 이용하여 개발하였다. 핫스탬핑 기술은 차량의 차체 강성을 증가시킬 뿐만 아니라 차체 중량 및 부품 수 축소로 인한 공정의 감소도 가능하게 한다. 핫스탬핑 시편을 제작하고, 기계적 물성시험을 수행하여 물성 데이터를 확보하였다. 핫스탬핑 임팩트빔의 성형해석및 구조해석을 이용한 최적 설계를 수행하여 기존 파이프형태의 임팩트빔보다 강도는 102% 향상되고, 중량은 34% 감소된 핫스탬핑 임팩트빔을 개발하였다.

Keywords

References

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  2. Analysis of Impact Characteristics of Bonded Dissimilar Materials for Center Pillar vol.36, pp.8, 2012, https://doi.org/10.3795/KSME-A.2012.36.8.929