Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Initial Blank Design and Modification for Rectangular Case Forming with Extreme Aspect Ratio

세장비가 큰 사각케이스 성형을 위한 초기 블랭크의 설계 및 개선에 관한 연구

  • 구태완 (부산대학교 정밀정형 및 금형가공 연구소) ;
  • 박철성 (부산대학교 항공우주공학과 대학) ;
  • 강범수 (부산대학교 항공우주공학과)
  • Published : 2004.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

Rectangular drawn case with extreme aspect ratio is widely used for electrical parts such as a lithium-ion battery container, semi-conductor case and so on. Additionally, from the recent trend towards miniaturization of the multi-functional mobile device, demands for rectangular case with the narrow width are increased. In this study, numerical and experimental approaches for the multi-stage deep drawing process have been carried out. Based on the research results of the width of 5.95mm model, finite element analysis for storage case of rectangular cup type was verified to the width of 4.95mm. Also, a series of manufacturing experiments for rectangular case is conducted and the deformed configuration of the rectangular drawn case are investigated by comparing with the results of the numerical analysis. And the modification of the initial blank is performed to minimize the trimmed material amount. By the application of the modified blank, the sound shape of the deformed parts is improved.

Keywords

References

  1. Annals of the CIRP v.45 Fundamentals on the Manufacturing of Sheet Metal Micropatrs M. Geiger;F. Vollertsen;R. Kals
  2. Journal of Materials Processing Technology v.98 Numerical and Experimental Investigation of Redrawing of Sheet Metals K. Sven;A. M. Ahmetoglu;L. G. Kinzel;T. Altan https://doi.org/10.1016/S0924-0136(99)00301-5
  3. Journal of Materials Processing Technology v.97 Three-Dimensional Numerical Simulation of the Deep Drawing Process Using Solid Finite Element L. F. Menezes;C. Teodosiu https://doi.org/10.1016/S0924-0136(99)00345-3
  4. 한국소성가공학회 추계학술대회 세장비가 큰 다단계 초정밀 사각형 디프드로잉 성형공정해석 박철성;구태완;강범수
  5. 한국소성가공학회 춘계학술대회논문집 세장비가 큰 다단계 초정밀 디프드로잉을 위한 블랭크 설계 박철성;구태완;강범수
  6. 한국소성가공학회지 v.3 no.4 축대칭 다단계 디프디로잉 공정의 유한요소 해석 윤정환;유동진;양동열;김석관
  7. 한국소성가공학회지 v.4 no.3 원통컵 디프드로잉 공정의 귀발생 예측 이승렬;금영탁;정관수;박진무
  8. 한국소성가공학회지 v.8 no.4 타원형 다단계 디프드로잉 용기의 최적 예비형상 설계에 관한 연구 김두환
  9. International Journal of Machine Tools and Manufacture v.42 Friction Aided Deep Drawing of Sheet Metals Using Polyurethane Ring and Auxiliary Metals Punch. Part Ⅰ: Experimental Observations on the Deep Drawing of Aluminum Thin Sheets and Foils M. A. Hassan;N. Takekura;K. Yamaguchi https://doi.org/10.1016/S0890-6955(01)00145-6
  10. International Journal of Machine Tool Design and Research v.25 Deformation Analysis and Blank Design in Square Cup Drawing C. H. Toh;S. Kobayashi https://doi.org/10.1016/0020-7357(85)90054-X
  11. Journal of Materials Processing Technology v.54 A Study on Process Improvements of Multi-Stage Deep Drawing by the Finite Element Method D. K. Min;B. Y. Jeon;H. J. Kim;N. S. Kim https://doi.org/10.1016/0924-0136(94)01775-1
  12. Journal of Materials Processing Technology v.130-131 Optimization of Initial Blank Shape to Minimize Earing in Deep Drawing using Finite Element Method N. Kishor;D. R. Kumar https://doi.org/10.1016/S0924-0136(02)00790-2
  13. 한국소성가공학회지 v.9 no.3 외연적 유한요소법을 이용한 세장비가 큰 타원형컵 성형공정의 다단계 해석 김세호;김승호;허훈
  14. 한국소성가공학회지 v.10 no.2 유한요소해석을 이용한 세장비가 큰 직사각컵 다단계 성형공정의 금형설계-Part Ⅰ 금형설계 김세호;김승호;허훈
  15. 한국소성가공학회지 v.10 no.6 세장비가 큰 다단계 사각형 디프드로잉 성형공정해석 및 금형 설계 김홍주;구태완;강범수
  16. Journal of Materials Processing Technology v.130-131 Finite Element Analysis of Multi-Stage Deep Drawing Process for High Precision Rectangular Case with Extreme Aspect Ratio T. W. Ku;B. K. Ha;W. J. Song;B. S. Kang;S. M. Hwang https://doi.org/10.1016/S0924-0136(02)00737-9
  17. 한국소성가공학회지 v.10 no.6 소형 부품의 사각 컵 드로잉 성형해석에 관한 실험적 연구 구태완;강범수
  18. International Journal of Machine Tools and Manufacture v.43 Prevention of Shock Lines in Multi-Stage Sheet Metal Forming K. Mori;Y. Abe;O. Ebihara https://doi.org/10.1016/S0890-6955(03)00108-1
  19. LS-DYNA 3D Theoretical Manual
  20. Metal Forming and The Finite Element Method S. Kobayashi;S. I. Oh;T. Altan
  21. International Journal of Numerical Method in Engineering v.17 A Uniform Strain Hexahedron and Quadrilateral with Orthogonal Hourglass Control D. P. Flanagan;T. Belytschko https://doi.org/10.1002/nme.1620170504
  22. Journal of Materials Processing Technology v.111 Implementation of Backward Tracing Scheme of the FEM to Blank Design in Sheet Metal Forming T. W. Ku;H. J. Lim;H. H. Choi;S. M. Hwang;B. S. Kang https://doi.org/10.1016/S0924-0136(01)00518-0
  23. Journal of Materials Processing Technology v.75 Blank design and formability for non-circular deep drawing processes by the finite element method S. D. Kim;M. H. Park;S. J. Kim;D. G. Seo https://doi.org/10.1016/S0924-0136(97)00297-5
  24. The Journal of the Korean Society of Precision Engineering v.15 no.12 Experimental determination of the optimum blank shape in rectangular cup drawing W. B. Bae;B. W. Heo;H. Y. Kim;Y. S. Lee
  25. Journal of Materials Processing Technology v.104 Optimum blank shape design by sensitivity analysis H. B. Shim;K. C. Son;K. H. Kim https://doi.org/10.1016/S0924-0136(00)00556-2

Cited by

  1. Experimental Study on Non-Axisymmetric Rectangular Cup using Multi-Stage Deep Drawing Process vol.19, pp.4, 2010, https://doi.org/10.5228/KSPP.2010.19.4.253