Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on the Warm Deep Drawability of Sheets in Cr-Coated Die

  • Published : 2001.07.01
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Abstract

Some deep drawing characteristics at elevated temperatures were investigated for the SCPI steel sheets by using a Cr-coated die. For this investigation, six different temperatures between room temperature and 250$\^{C}$, and six different drawing ratios ranging from 2.4 to 2.9 were considered. As a result, the limiting drawing ratio, the maximum drawing force and the maximum drawing depth were found to be affected sensitively by temperature, and more stable through-thickness strain distribution was observed at elevated temperatures. Some experimental results compared favorably with theoretical results obtained by using the finite element method.

Keywords

References

  1. Choi, C. S., Choi, Y. C, Oh, Y. K. and Lee, H. S., 2000, 'Reduction of Drawing Process in Warm Forming Steel Sheets Using Oil Pan,' Transactions of Material Processing, Vol. 9, No. 7, pp. 699-705
  2. Kim, J. H., Choi, C. S. and Na, K. H., 1995, 'Comparison of Warm Deep Drawability of Stainless Steel Sheet Between Crank press and Hydraulic press,' Journal of the Korean Society for Technology of Plasticity, Vol. 4, No. 4, pp. 345-352
  3. Kim, J. H., Choi, C. S., Jeong, B. Y. and Lee, G. H., 1993, 'Deep Drawing of Stainless Steel in Warm Working Condition Using a Single Crank Press,' Proceeding of the Fourth International Conference on Technology of Plasticity, pp. 1691-1694
  4. Kim, S. M., Ghoo, B. Y., Keum, Y. T. and Kim, J. H., 1999, 'Finite Element Analysis and Experimental Investigation of Non-Isothermal Processes for Aluminum-Alloy Sheet Metals(part2:Analysis),' Journal of the Korean Society for Technology of Plasticity, Vol. 8, No. 3, pp. 252-261
  5. Leighton, D. E. and Lee, D., 1994, 'The Effect of Tooling Temperature on the Formability of Sheets Steel,' Journal of Material Processing Technology 45, pp. 577-582 https://doi.org/10.1016/0924-0136(94)90401-4
  6. Nohara, K., Watanabe, Y. and Yamahata, K., 1990, 'WARM PRESS FORMING OF STAINLESS STEEL SHEETS,' Proceedings of the First International Conference on New Manufacturing Technology, Chiba 1990, pp. 533-538
  7. Oh, Y. K., 1999, 'Improvement of Deep Drawability for Steel Sheets,' Technical Research Report, Kia Motors Co., pp. 1-6
  8. Ohwue, T., Takechi, H. and Furuno, Y., 1987a, 'Deep Drawability of Square Shells in Warm Working Condition,' Journal of the JSTP, Vol. 28, No. 318, pp. 706-711
  9. Ohwue, T., Takechi, H. and Furuno, Y., 1987b, 'Temperature Dependence of Tensile Properties Drawability of Steel Sheets in Warm Working Condition,' Journal of the JSTP, Vol. 28, No. 314, pp. 225-231
  10. Ryu, H. Y., Kim, Y. E., Kim, J. H., Ghoo, B. Y. and Keum, Y. T., 1999, 'Finite Element Analysis and Experimental Investigation of Non -Isothermal Processes for Aluminum-Alloy Sheet Metals(partl:Experiment),' Journal of the Korean Society for Technology of Plasticity, Vol. 8, No. 2, pp. 152-159
  11. Shinagawa, K., Takeoka, T., Mori, K. and Osakada, K., 1993, 'Finite Element Simulation of Warm Deep Drawing of Type 304 Stainless Steel Sheet with Deformation Induced Transformation,' Journal of the JSTP, Vol. 34, No. 390, pp. 794-799
  12. Song, K. H., Lee, J. D., Choi, Y. C. and Seo, D. G., 1999, 'Friction and Drawing Characteristics of Sheets for Variable Blank Holding Force and Die Temperature,' Journal of the Korean Society for Technology of Plasticity, Vol. 8, No. 3, pp. 245-251
  13. Watanabe, Y., 1992, 'ステンレス鋼板の溫間絞り加工法', Journal of the JSTP, Vol. 33, No. 375, pp. 396-403
  14. Zeng, X. M. and Mahdavian, S. M., 1998, 'Critical Condition of Wrinkling in Deep Drawing at Elevated temperature,' Journal of Material Processing Technology 84, pp. 38-46 https://doi.org/10.1016/S0924-0136(98)00077-6