Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Blank Design in Sheet Metal forming Process Using the Rollback Method

롤백방법을 이용한 박판금속성형공정에서의 블랭크 설계

  • Published : 1999.10.01
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Abstract

A new blank design method is proposed to predict the optimum initial blank shape in the sheet metal forming process. The rollback method for blank shape design takes the difference between the deformed blank contour and the target contour shape into account. the minimization object function R is proposed. Based on the method, a computer program composed of blank design module, FE-analysis module and mesh generation module is developed. The rollback method is applied to square cup, reentrant cross section, L-shaped cup drawing process with the flange of uniform size around its periphery to confirm its validity. The optimum initial blank shape is obtained from an arbitrary blank shape after several modifications. Good agreements are recognized between the numerical results and the published experimental results for initial blank shape and thickness strain distribution. It is concluded that the rollback method is an effective and convenient method for an optimum blank shape design.

Keywords

References

  1. Int. J. Mech. Tool. Des. Res. v.26 no.2 Blank Design in Rectangular Cup Drawing by an Approximate Method N.Kim;S.Kobayashi
  2. Bulletin of JSME v.29 no.249 On the Determinaton of the Optimum Blank Shape of Nonaxisymmetric Drawn Cup by the Finite Element Method H.Iseki;T.Murota
  3. Japan Soc. Tech. for Plasticity v.11 no.116 Deep Drawing Convex Polygon Shell Researches on the Deep Drawing of Sheet Metal by the Slip Line Thoery. 1st Report T.Jimma
  4. Proc. of 7th NAMRC Use of Slip Line Field Method in Deep Drawing of Large Irregular Shaped Components V.V.Hazek;K.Lange
  5. ASME Trans : J. of Engineering for industry v.111 Blank Development and Tooling Design for Drawn Parts Using a Modified Slip Line Field Based Approach Karima M. Karima
  6. Int. J. Mech. Sci. v.32 An Analysis Method for Deep Drawing Process Design J.H.Vogel;D.Lee
  7. Int. J. Mec. Sci. v.34 no.2 The Development of Ideal Blank Shapes by the Method of Plane Stress Characteristics X.Chen;R.Sowerby
  8. Int. J. Mech. Sci. v.28 no.7 The Modelling of Sheet Metal Stamping R.Sowerby;J.L.Duncan;E.Chu
  9. ASME Trans: J. of Engineering for Industry v.109 Further Development of Sheet Matal Forming Analysis Method S.A.Majlessi;D.Lee
  10. NUMIFORM'89 An efficient Algorithm to Estimate the Large Strains in Deep Drawing J.L.Batoz;Y.Q.Guo;P.Duroux;J.M.Detraux
  11. Int. J. Mech. Sci. v.34 no.7 Ideal Forming-Ⅰ. Homogeneous Deformation with Minimum Plastic Work K.Chung;O.Richmond
  12. J. of Mater. Process. Technol. v.63 Blank Design and Strain Prediction for Automabile Stamping Parts by an Inverse Finite Element Approach C.H.Lee;H.Huh
  13. Proc. of 5th Int. Cof. on Tech. of Plasticity v.2 Blank Design for Non-Circular Deep Drawing Process by the Finite Element Method S.Kim;M.Park;D.Yang;D.Seo
  14. Int. J. Mech. Tool Des. Res. v.25 no.1 Deformation Analysis and Blank Design in Square Cup Drawing C.H.Toh;S.Kobayashi
  15. Int. J. Mech. Sci. v.28 no.8 Determination of Blank Shapes of Drawing Irregular Cups Using and Electrical Analogue Methods Z.Zhatao;L.Bingwen
  16. 대한기계학회 '92년도 춘계학술대회논문집(Ⅰ) 경계요소법을 이용한 디이프드로잉 가공의 최적 블랭크 형상 결정 박기철;김영석
  17. 한국자동차공학회논문집 v.5 no.4 이상적 변형이론을 이용한 박판 초기형상 설계에 관한 연구 박상후;윤정환;양동열;김용한;이장희
  18. 대한기계학회 춘계학술대회논문집(Ⅰ) 박판금속성형공정에서의 블랭크 설계 및 변형률 예측 이충호;허훈
  19. 대한기계학회 논문집 v.18 no.10 개량박막 유한요소법에 의한 두가지 블랭크로부터의 사각컵 딥드로잉 성형해석 허훈;한수식
  20. 한국소성가공학회지 v.5 no.2 오목형 단면 딥드로잉에서의 성형성 박민호;김상진;서대교
  21. 한국소성가공학회 '98 추계학술대회 논문집 임의 형상 컴 딥드로잉에서의 최적 blank에 관한 연구 손기찬;심현보;전성문