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토션을 이용한 압출공정의 상계해석에 관한 연구

A Study of the Upper Bound Analysis of Extrusion Process with Torsion

  • 발행 : 2008.05.31

초록

In this study, a extrusion process with torsion of the bottom die is investigated to improve the forming performance of conventional extrusion process. In the experiment, plasticine is used as a model material. The results of experiments are compared with the two numerical methods, the Experiment and the Finite Element Method(FEM). An attempt is made to link programs incorporating with the process variables obtained by commercial FEM software, DEFORM-3D a useful package. Numerical result is compared with experimental one. These results show that the torsional extrusion process is very useful process because this process can obtain the homogenous deformations.

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참고문헌

  1. S. Alexandrov, G. Mishuris, W. Miszuris, R. E. S-liwa, 'On the dead-zone formation and limit analysis in axially symmetric extrusion', International journal of Mechanical Sciences, Vol. 43, pp. 367-379, 2001 https://doi.org/10.1016/S0020-7403(00)00016-3
  2. G. S. Min, J. Choi, J. C. Choi, B. M. Kim and H. Y. Cho, ' Process Design in Cold Forging of the Backward and Forward Extruded part', Journal of the KSPE, Vol. 14, No. 8, pp. 57-64, 1997
  3. X. Kemin, W. Zhen and L. Yan, 'FEM Analysis of Cylinder Twist-Compression Deformation Regularity', Journal of Materials Processing Technology, Vol. 69, pp. 148-151, 1997 https://doi.org/10.1016/S0924-0136(97)00008-3
  4. Y. H. Kim, Y. E. Jin, J. H. Park, Y. Lee, 'An Analysis of the Torsional Forming Process using the Dual Stream Function', Proceedings of the 8th Int. Con. on Metal Forming, Poland, pp. 741-745, 2000
  5. Y. H. Kim, W. B. Bae, J. H. Lee, J. H. Park, 'A Study on the Process Design of Non-Axisymmetric Forging Components', Journal of the KSPE, Vol. 12, No. 10, 1995
  6. L. X. Kong, P. D. Hodgson, 'Material Properties under Drawing and Extrusion with Cyclic Torsion', Material Sciences and Engineering, A308, pp. 209-215, 2001
  7. Yu. N. Loginov, S. P. Burkin, 'Investi gations of the Process of Extrusion through a rotating die', Steel in Translation, Vol. 25, No. 4, pp. 37-42, 1995
  8. S. C. An, G. A. lee, S. Y. Kim and Y. T. Im, 'Elastic Analysis of Cold Extrusion Die Set with Stress Ring', Transactions of Materials Processing, Vol. 11, No. 4, pp. 355-362, 2002 https://doi.org/10.5228/KSPP.2002.11.4.355