박판금속성형의 최적 블랭크 설계를 위한 삼차원 다단계 역해석

Three Dimensional Multi-step Inverse Analysis for Optimum Blank Design in Sheet Metal Forming

  • 이충호 (한국과학기술원 기계공학과) ;
  • 허훈 (한국과학기술원 기계공학과)
  • Lee, Choong-Ho (Department of Mechanical Engineering, KAIST) ;
  • Huh, Hoon (Department of Mechanical Engineering, KAIST)
  • 발행 : 1997.03.01

초록

One-step inverse methods based on deformation theory causes some amount of error. The amount of error is generally increased as the deformation path is more complex. As a remedy, a new three dimensional multi-step inverse method is introduced for optimum design of blank shapes and strain distributions from desired final shapes. The approach extends a one-step inverse method to a multi-step inverse method in order to reduce the amount of error. The algorithm developed is applied to square cup drawing to confirm its validity by demonstrating reasonably accurate numerical results.

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