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Densifcation Behavior of Iron Powder During Cold Stepped Plastic Deformation

냉간 다단 소성변형하에서의 철분말의 치밀화 거동

  • 강춘성 (포항공과대학교 대학원) ;
  • 이성철 (포항공과대학교 대학원) ;
  • 김기태 (포항공과대학교 기계공학과) ;
  • Published : 2005.10.01

Abstract

Densification behavior of iron powder under cold stepped plastic deformation was studied. Experimental data were also obtained for iron powder under cold stepped plastic deformation. The elastoplastic constitutive equation based on yield function of Shima and Oyane was implemented into a finite element program (ABAQUS) to simulate compaction responses of i.on powder during cold stepped plastic deformation. Finite element calculations were compared with experimental data for densification, deformed geometry and density distribution. The agreement between finite element results and experimental data was good for iron powder.

Keywords

References

  1. Randal, M. G., 1994, Powder Metallurgy Science, Metal Powder Industries Federation, Princeton, New Jersey, U. S. A.
  2. Lenel, F. V., 1980, Powder Metallurgy-Principles and Applications, Metal Powder Industries Federation, Princeton, New Jersey, U. S. A.
  3. German, R. M., 1984, Powder Metallurgy Science, Metal Powder Industries Federation, Princeton, New Jersey, U. S. A.
  4. Kuhn, H. A. and Ferguson, B. L., 1990, Powder Forging, Metal Powder Industries Federation, Princeton, New Jersey, U. S. A.
  5. Lewis, R. W., Jinka, A. G. K. and Gethin, D. T., 1993, 'Computer-Aided Simulation of Metal Powder Die Compaction Processes,' Powder Metall. Int., Vol. 25, pp. 287-293
  6. Sivakumar, R., Nishikawa, T., Honda, S., Awaji, H. and Gnanam, F. D., 2003, 'Processing of Mullite-molybdenum Graded Hollow Cylinders by Centrifugal Molding Technique,' J. Eur. Ceram. Soc., Vol. 35, No. 23, pp.765-772 https://doi.org/10.1016/S0955-2219(02)00197-8
  7. Devasenapathi, A., Ng, H. W., Yu, S. C. M. and Indra, A. B., 2002, 'Forming Near Net Shape Freestanding Components by Plasma Spraying,' Mater. Lett., Vol. 57, pp. 882-886 https://doi.org/10.1016/S0167-577X(02)00889-3
  8. Nagae, T., 1998, 'Consolidation of a Hollow Compact by Pulse Discharge Pressure Sintering,' J. Jpn Soc. Powder Metall., Vol. 45, pp. 169-171 https://doi.org/10.2497/jjspm.45.169
  9. Mamalis, A. G., Szalay, A., Pantelis, D. I., Pantazopoulos, G., Kotsis, I. and Enisz, M., 1996, 'Fabrication of Multi-Layered Steel/Superconductive Ceramic(Y-Ba-K-Cu-O)/Silver Rods by Explosive Powder Compaction and Extrusion,' J. Mater. Process. Technol., Vol. 57, pp. 155-163 https://doi.org/10.1016/0924-0136(95)02062-4
  10. Morgan, R. H., Papworth, A. J., Sutcliffe, C., Fox, P. and O'nell, W., 2002, 'High Density Net Shape Component by Direct Laser Re-melting of Single-Phase Powders,' J. Mater. Sci., Vol. 37, pp. 3093-3100 https://doi.org/10.1023/A:1016185606642
  11. Omori, M., 2000, 'Sintering, Consolidation, Reaction and Crystal Growth by the Spark Plasma System(SPS),' Mater. Sci. Eng., Vol. A287, pp. 183-188 https://doi.org/10.1016/S0921-5093(00)00773-5
  12. Rozenberg, O., Techanov, J. A. and Seikin, S. E., 2004, On Some Regularities of the Surface Plastic Deforming at Deforming Broaching, Universum, Tula State University, Kiev, Ukraine
  13. Shima, S. and Oyane, M., 1976, ' Plasticity Theory for Porous Metals,' Int, J. Mech. Sci., Vol. 18, pp. 285-291 https://doi.org/10.1016/0020-7403(76)90030-8
  14. ABAQUS User's I and II Manual, Hibbitt, Karlsson, and Sorensen, 1998
  15. Aravas, N., 1987, 'On The Numerical Integration of A Class of Pressure-dependent Plasticity Models,' Int. J. Num. Meth. Engrg., Vol. 24, pp. 1395-1416 https://doi.org/10.1002/nme.1620240713
  16. Lush, A. M., Weber, G. and Anand, L., 1989, 'An Implicit Time-integration Procedure for A Set of Internal Variable Constitutive Equations for Isotropic Elasto-Viscoplasticity,' Int. J. Plasticity., Vol. 5, pp. 521-549 https://doi.org/10.1016/0749-6419(89)90012-0
  17. Govindarajan, R. M., 1992, Deformation Processing of Porous Metals, Doctoral thesis, University of Pennsylvania, U. S. A.
  18. Boyer, H. E., 1987, Hardness Testing, ASM International, pp. 31-55
  19. Song, M. C., Kim, H. G. and Kim, K. T., 1996, 'Creep Densification of Copper Powder Compact,' Int. J. Mech. Sci., Vol. 38, No. 11, pp. 1197-1208 https://doi.org/10.1016/0020-7403(96)00011-2
  20. Kwon, Y. S., Lee, H. T. and Kim, K. T., 1997, 'Analysis for Cold Die Compaction of Stainless Steel Powder,' ASME J. Eng. Mat. Tech., Vol. 119, pp. 366-373 https://doi.org/10.1115/1.2812271
  21. Ludwik, P., 1909, Elemente der Technologischen Mechanik, Springer, Berlin