한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제25권2호
  • /
  • Pages.236-241
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  • 2017
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  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
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액중 방전 성형의 실험 장치 개발 및 실험적 연구

Development of Electrohydraulic Forming Apparatus and Its Experimental Study

  • 우민아 (부산대학교 항공우주공학과) ;
  • 노학곤 (부산대학교 항공우주공학과) ;
  • 송우진 (부산대학교 융합학부) ;
  • 강범수 (부산대학교 항공우주공학과) ;
  • 김정 (부산대학교 항공우주공학과)
  • Woo, Mina (Department of Aerospace Engineering, Pusan National University) ;
  • Noh, Hakgon (Department of Aerospace Engineering, Pusan National University) ;
  • Song, WooJin (Department of Convergence Science, Pusan National University) ;
  • Kang, Beomsoo (Department of Aerospace Engineering, Pusan National University) ;
  • Kim, Jeong (Department of Aerospace Engineering, Pusan National University)
  • 투고 : 2017.01.13
  • 심사 : 2017.02.09
  • 발행 : 2017.03.01
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초록

Electrohydraulic forming is a high-speed forming process that deforms a blank using electric discharge in liquid. When high voltage is discharged in the water, a shock wave is propagated from the tip of the electrodes to the blank, causing the blank to be deformed into the die. Electrohydraulic forming has many advantages including improved formability and reduced bouncing effect and springback. The objective of this paper was to conduct a feasibility study to identify the electrohydraulic effect. An electrohydraulic forming apparatus was developed and experiments were carried out. The results of the experiment showed that the developed apparatus had sufficient energy to deform the blank into the die. Using the hole to emit residual air in the die was more effective than using the vacuum pump in terms of saving on experiment time.

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참고문헌

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