Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Numerical and Experimental Study on Plate Forming Process using Flexible Die

가변금형을 이용한 판재 성형에 대한 해석 및 실험

  • 허성찬 (부산대학교 항공우주공학과 대학원) ;
  • 서영호 (부산대학교 항공우주공학과 대학원) ;
  • 박중원 (부산대학교 항공우주공학과 대학원) ;
  • 구태완 (부산대학교 항공우주공학과) ;
  • 김정 (부산대학교 항공우주공학과) ;
  • 강범수 (부산대학교 항공우주공학과)
  • Published : 2008.12.01
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Abstract

A flexible forming apparatus is composed a number of punches which have spherical pin tip shape instead of conventional solid die. The flexible forming tool consisted of punch array in a matrix form was proposed as an alternative forming method to substitute the conventional line heating method which use heat source to induce residual stress along specified heating lines. In this study, application of the flexible forming process to the small scale curved plate forming was conducted. Numerical simulations for both solid and flexible die forming process were carried out to compare the shape of the products between flexible and conventional die forming process. In addition, spring-back analysis was conducted to figure out the feasibility of the flexible forming process comparing with the die forming process in view of final configuration of the specimens. Moreover, experiment was also carried out to confirm the formability of the process. Consequently, it was confirmed that the flexible die forming method has capability and feasibility to manufacture the curved plates for shipbuilding.

Keywords

References

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