한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제20권4호
  • /
  • Pages.52-59
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  • 2012
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  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
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고진공 다이캐스팅 공법 적용한 알루미늄 서브프레임 개발

Front Aluminum Subframe of High Level Vacuum Die-casting

  • Cho, Young-Gun (Platform Development 2 Team, Hyundai-motor Company) ;
  • Lim, Tae-Seong (Metallic Materials Research Team, Hyundai-motor Company) ;
  • Jang, Sang-Gil (Advanced Engineering Team in Advanced Research, Donghee Industrial Co.) ;
  • Cho, Cheol-Hwan (CAE Team, Donghee Industrial Co.)
  • 투고 : 2011.07.13
  • 심사 : 2011.11.22
  • 발행 : 2012.07.01
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초록

The subframe has been generally manufactured by using stamped steel material. Recently, automotive designers are considering aluminum as lightweight material. This paper describes the development process of an aluminum subframe which is made by high level vacuum die casting process, which is beneficial for minimizing gas contents and material properties. The weight of manufactured subframe is reduced by 4kg with the comparison of steel subframe. The aluminum subframe is packaged for the current vehicle layout and the imposed requirement is to attain a better structural performance that is evaluated in terms of mounting stiffness, noise and vibration, and endurance performance. The NVH evaluation results show that sound level is decreased by 8dB with the help of high roll-rod mounting stiffness as well as high structural modes.

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참고문헌

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