Influence of Die Shoulder Radius and Punch to Die Clearance for Multistage Deep Drawing of Complex Cylindrical Shell

원통형 용기의 다단계 디프드로잉에 대한 다이 곡률반경 및 틈새의 영향

  • 김두환 (만도기계(주) 생산기술원)
  • Published : 1999.06.01

Abstract

This paper reviews the rules for optimizing die design and the process variables such as die shoulder radius and punch to die clearance, which are important factors in drawing the sheet metal without failures during deep drawing. To find the optimum conditions for improving deep drawability, a series of the experiments are performed, and the wall thinning and thickening variations are investigated in each process of deep drawing for a complex cylindrical shell. From the results of this proposed experiment, the optimum values of process variables are examined and discussed, and the usefulness of the present suggestion is shown.

Keywords

References

  1. Techniques of Pressworking Sheet Metal Donald F. Eary;Edward A. Reed
  2. プレス加工と型技術 太田 哲
  3. Blanking, and Punching, and Drawing Tools(6th ed.) Oehler,G.;Kaiser,F.
  4. Dr-thesis, technische Hochscule The Behavior of Deep Drawing Sheets as a Function of the Testing Method Koelzer,H.
  5. Handbook of Blanking Techhology(in Germany) Romanowski,E.
  6. Handbook of drawing Technology Sellin,W.
  7. 實用プレス型技術,加工技術デタ集 井本
  8. 新プレス加工デ-タブツク 日刊工業新聞社 編集委員會(編)
  9. 한국소성가공학회 '98춘계학술대회 논문집 원통형 용기의 다단계 디프 드로잉 공정설계에 관한 사례 연구 김두환
  10. 한국소성가공학회지 v.7 no.4 원통형 디프 드로잉 용기의 벽 두께 감소 최소화에 관한 실험적 연구 김두환
  11. 한국소성가공학회지 v.7 no.5 스테인리스 강 STS305의 디프 드로잉 가공에 관한 실험적 연구 김두환
  12. Metalworking Science and Engineering EDWARD M. MIELNIK
  13. Metals Handbook(Ninth Edition) v.14 Forming and Forging ASM INTERNATIONAL
  14. 塑性と加工 v.38 no.436 深絞り加工 T.KUWABARA
  15. Werksttatstechnik v.51 The Tractrix Curve, a Die with Helical Shoulder and the Ironing in Several Dies May,O.
  16. AIDA Press Hand-book Aida Engineering, Ltd.