Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
권호 표지

Forming Characterististics of Radial-Backward Extrusion for Single Action Pressing

단동 프레싱에 의한 레이디얼-후방압출의 성형특성

  • 장동환 (인하대학교 자동화공학과) ;
  • 고병두 (인하대학교 자동화공학과) ;
  • 이영섭 (인하대학교 자동화공학과) ;
  • 황병복 (인하대학교 자동화공학과)
  • Published : 2001.10.01
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Abstract

This paper is concerned with the analysis of the forming characteristics of radial-backward extrusion. The single action pressing is analyzed by using the rigid-plastic FEM. The design factors such as die corner radius, gap height, and friction factor are involved in the simulation. The analysis is focused on the influences of the design factors on the maximum punch farce and metal flow into can and flange region. As a result of analysis, the gap height among the design factors is known to have a major effect on the metal flow of radial-backward extrusion for single action pressing compared with other design factors. As is expected, forming load and volume of flange increase as gap height and die corner radius increase, respectively.

Keywords

References

  1. K. Sevenler, P. S. Raghupathi, and T. Altan, 'Forming Sequence Design for Multistage Cold Forging,' J. of Mechanical Working Technology, Vol. 14, pp. 121-135, 1987 https://doi.org/10.1016/0378-3804(87)90055-6
  2. T. Altan, S. I. Oh, H. L. Gegal, 'Metal Forming:Fundamentals and Applications,' American Society for Metals, pp. 231-233, 1983
  3. Amerian Society For Metals, Source Book on Cold Forming, Library of Congress Cataloging in Publication Data, pp. 35-341, 1975
  4. N. S. Kim, Y. T. Lim and J. T. Jin, Manufacturing Processes for Engineering Metals, Pando Press, 2nd Edition, pp. 320-321, 1995
  5. T. Reinikainen, S. Korhonen, Andersson, Kivivuori, 'Computer Aided Modeling of a New Copper Extrusion Process,' Annals of the CIRP, Vol. 42, No. 1, 1993
  6. C. H. Lee, S. Kobayashi, 'New solutions to rigid-plastic deformation problems using a matrix method,' J. Eng. Ind. Trans. ASME 95, p. 865, 1973
  7. S. I. Oh, G. D. Lahoti and T. Altan, 'ALPID - A General Purpose FEM Program for Metal Forming,' Proceedings of NAMRC IX, State College, Pennsylvania, May 1981
  8. W. Schatzle, 'Radial Extrusion of Flanges on Steel Cylindrical Workpieces,' Institute for Metal Forming, University of Stuttgart, Springer, Berlin, West Germant. Technical Report 93, 1987
  9. W. Schatzle, 'Transverse Extrusion of a Collar on Solid Steel Bodies,' Wire, 34/2, pp. 71 - 74, 1984
  10. R. Geiger, W. Schatzle, 'Basics and Application of Radial Extrusion,' Fundamentals of Metal Forming Technique - State and Trends, proceedings of the International Symposium, Stuttgart, West Germany, October 13 - 14, pp. 139-161, 1983
  11. R. Geiger, 'State of the Art and Development Trends in Cold Forging Technology,' Proc. of Adv. Tech. of Plasticity Conf., Tokyo, Japan, Vol 1, pp. 469 - 477, 1987
  12. J. A. Pale and T. Altan, 'Development of Equipment and Capabilities for Investigation of the Multi-Action Forming of Complex Parts,' Engineering Research Center for Net Shape Manufacturing, pp. 8 - 14, 1989
  13. Air Force Material Laboratory, 'Forming Equipment, Materials and Practices,' Metal and Ceramics Information Center, p. 164, 1973
  14. W. Osen, 'Possibilities and Limitations of Cold Extrusion Processes Combined with Radial Extrusion,' Advanced Technology of Plasticity, Vol. 1, pp. 575-582, 1987
  15. R. Balendra and Y. Qin, 'FE Simulation of the Development of Flaws During Injection Forging,' Int. J. Mach. Tools Manufact., Vol. 34, p. 1091, 1994 https://doi.org/10.1016/0890-6955(94)90015-9
  16. M. Arentoft, H. Bjerregaard, C. B. Andersen, and T. Wanheim, 'The Influence of Constitutive Behavior of Materials on the Formability in Radial Extrusion of Tubular Components,' J. Materials Processing Technology, Vol. 75, pp. 122-126, 1998 https://doi.org/10.1016/S0924-0136(97)00301-4