소성∙가공 (Transactions of Materials Processing)

  • 제20권3호
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  • Pages.206-213
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  • 2011
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  • 1225-696X(pISSN)
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  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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3차원 성형곡면 구현을 위한 가변금형의 펀치 및 제어시스템 설계

Design of Flexible Die Punch and Control System for Three-dimensional Curved Forming Surface

  • 서영호 (부산대학교 항공우주공학과 대학원) ;
  • 허성찬 (부산대학교 항공우주공학과 대학원) ;
  • 구태완 (부산대학교 항공우주공학과) ;
  • 김정 (부산대학교 항공우주공학과) ;
  • 강범수 (부산대학교 항공우주공학과)
  • 투고 : 2010.11.17
  • 심사 : 2011.04.01
  • 발행 : 2011.06.01
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초록

A flexible die, which is composed of a number of punches with adjusted heights to form a three-dimensional curved surface, is a crucial part of a flexible forming technology. In this study, the punch and control system of the flexible die were designed. The flexible die is divided into three modules, namely, punch, control and joint, and the corresponding modules were developed. The punch module materializes a three-dimensional forming surface by the control module, which is composed of an AC servo motor set and a linear guide. The joint module is necessary for the sequential motion between the servo motor set and the punch module. A sequential motion algorithm for the AC servo motor set, that uses the data of the punch relative heights, was also proposed. Finally, a flexible stretch forming test was carried out using the presently designed flexible die.

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참고문헌

  1. S. C. Heo, Y. H. Seo, T. W. Ku, J. Kim, B. S. Kang, 2009, Study on application of flexible die to sheet metal forming process, Trans. Mater. Process., Vol. 18, No. 7, pp. 556-564. https://doi.org/10.5228/KSPP.2009.18.7.556
  2. S. C. Heo, Y. H. Seo, J. W. Park, T. W. Ku, J. Kim, B. S. Kang, 2008, Numerical and experimental study on plate forming process using flexible die, Trans. Mater. Process., Vol. 17, No. 8, pp. 570-578. https://doi.org/10.5228/KSPP.2008.17.8.570
  3. Y. H. Seo, S. C. Heo, J. W. Park, T. W. Ku, W. J. Song, J. Kim, B. S. Kang, 2010, Development of stretch forming apparatus using flexible die, Trans. Mater. Process., Vol. 19, No. 1, pp. 17-24. https://doi.org/10.5228/KSPP.2010.19.1.017
  4. Z. Y. Cai, S. H. Wang, X. D. Xu, M. Z. Li, 2009, Numerical simulation for the multi-point stretch forming process of sheet metal, J. Mater. Process. Technol., Vol. 209, pp. 396-407. https://doi.org/10.1016/j.jmatprotec.2008.02.010
  5. K. A. Pasch, 1981, Design of a discrete die surface for sheet metal forming, S.B. Theis, Department of Mechanical Engineering, Massachusetts Institute of Technology.
  6. M. Z. Li, Y. H. Liu, S. Z. Su, G. Q. Li, 1999, Multi point forming: a flexible manufacturing method for a 3-D surface sheet, J. Mater. Process. Technol., Vol. 87, Issues 1-3, pp. 277-280. https://doi.org/10.1016/S0924-0136(98)00364-1
  7. L. Li, Y. H. Seo, S. C. Heo, B. S. Knag, J. Kim, 2010, Numerical simulations on reducing the unloading springback with multi-step multi-point forming technology, Int. J. Adv. Manuf. Technol., Vol. 48, pp. 45-61. https://doi.org/10.1007/s00170-009-2290-6

피인용 문헌

  1. Numerical and Experimental Study for Improvement of Formability in Flexible Forming Process vol.21, pp.7, 2012, https://doi.org/10.5228/KSTP.2012.21.7.432
  2. Compensation for Elastic Recovery in a Flexible Forming Process Using Predictive Models for Shape Error vol.21, pp.8, 2012, https://doi.org/10.5228/KSTP.2012.21.8.479