Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
권호 표지

A Study on the Influence of the Punch Stroke of Bead on the Draw-bead process by using Static-explicit Finite Element Method

정적 외연적 유한요소법을 이용한 비드 펀치 행정거리가 드로우비드 공정에 미치는 영향에 관한 연구

  • 정동원 (제주대학교 기계에너지생산공학부)
  • Published : 2001.05.01
Download PDF
⟨ Previous Next ⟩

Abstract

The bead is used to provide properly restraining force in the sheet metal forming process. This bead process includes bending and geometrical non-linearity, and affects the state of binderwrap. Therefore, the analysis of bead process is very important to obtain the desired formability. In this paper, the research about the influence of the punch stroke of bead on the draw-bead process was conducted. Results from the analysis will give useful information to the effective tool design of blank forming process. To analyze the bead process, and elasto-plastic finite element formulation is constructed from the equilibrium equation and the considered boundary conditions involved a proper contact condition. The static-explicit finite element method as a numerical method for the analysis was applied to the analysis program code. It was found that this method could solve too much computation time and convergence problem owing to high non-linearity of bead forming process.

Keywords

References

  1. 한국해양공학회지 v.12 no.1 대형 차체판넬 스템핑공정에서의 동적 외연적 탄소성 유한요소해석 정동원;김귀식;양동열
  2. 대한기계학회논문집 A권 v.24 no.6 드로비드 형상에 따른 박판 성형공정에 미치는 영향에 관한 연구 정동원;이상제
  3. NUMIFORM'92 Numerical Simulation of Drawbeads for Axisymmetric Deep-drawing Processes Cao, H. L.;Teodosiu, C.
  4. Comp. Meth. Appl. Eng. An Analysis of metal Forming Processes using Large Deformation Elastic-plastic Formulation Cheng, J. H.;Kikuchi, N.
  5. Numerical Simulations of S-heet Foriming Processes by an Elasto-Plastic Finite Element Method Choi, .T. H.
  6. Numerical Simulation of Bead Formation by an Elasto-Plastic Finite Element Method Chun, B. K.
  7. Transactions of the ASME v.109 An Analysis of Drawbeads in Sheet Metal Forming : Part Ⅱ-Experimental Verification Maker, B.;Samanta, S. K.;Grab, G.;Triat afyllidis, N.
  8. Mechanics of Sheet Forming Drawbead Forces in Sheet Metal Forming Nine, H. D.;Koistinen, D. P.(ed.);Wang, N.-M
  9. J. of Eng. Materials and Technology v.108 An Analysis of Drawbeads in Sheet Metal Forming : Part Ⅰ-Problem Formulation Triantafyllidis, N.;Maker, B;Samanta, S. K.
  10. J. Mater. Shaping. Tech v.9 Drawbead Design and Performance Wang, N. M.;Shah, V. C.
  11. NUMIFORM'89 Numerical Simulation of Industrial Sheet Forming Processes Wang, N. M.;Somaratna, N.
  12. Int. J. Mech. Sci. v.10 Plastic Stress-Strain Matrix and its Application for the Solution of Elastic-Plastic Problems by the Finite Element Method Yamada, Y.;Yoshimura, N.