Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
권호 표지
DOI QR코드

DOI QR Code

Effect of Processing Condition on the Hot Extrusion of Al-Zn-Mg-Sc Alloy

Al-Zn-Mg-Sc 합금의 고온압출에 미치는 공정조건의 영향 분석

  • 김남용 (동의대학교 신소재공학과) ;
  • 김진호 (한국기계연구원 재료기술연구소/소재성형센터) ;
  • 염종택 (한국기계연구원 재료기술연구소/소재성형센터) ;
  • 이동근 (한국기계연구원 재료기술연구소/소재성형센터) ;
  • 임수근 (경상대학교 재료공학부) ;
  • 박노광 (경상대학교 재료공학부) ;
  • 김정한 (한국기계연구원 재료기술연구소/소재성형센터)
  • Published : 2006.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

Effect of processing condition on the hot extrusion of Al-Zn-Mg-Sc alloy was investigated. For this purpose, hot compression test and FE-simulation were conducted via Thermecmaster-Z and DEFORM-3D, respectively. The microstructure evolution during hot extrusion and post heat-treatment was investigated and deformation mechanisms were analyzed by constructing processing map. FE-simulation results show that the temperature difference between container and billet has considerable influence on the final shape of extruded T-shape bar. The relation between applied load and processing time was predicted by the FE-analysis as well as punch speed vs. stroke chart.

Keywords

References

  1. A. F. Norman, P. B. R. S. McEwen, 1998, Solidification Behavior of Dilute Al-Sc Alloys, Acta Mater., Vol. 46, pp. 5715-5732 https://doi.org/10.1016/S1359-6454(98)00257-2
  2. B. Lenczowski, R. Rauh, D. Wieser, G. Tempus, G. Fisher, J. Becker, K. Folkers, R. Braun, G. Lutjering, 2000, Weldable AlMgSc Alloys for Transportation Technology, pp. 200-203
  3. E. A. Marquis, D. N. Seidman, 2001, Nanoscale Structural Evolution of Al3Sc Precipitates in Al(Sc) Alloys, Acta Mater., Vol. 49, pp. 1909-1919 https://doi.org/10.1016/S1359-6454(01)00116-1
  4. S. Kramer, W. T. Tack, M. T. Fernandes, 1997, in: Proceedings of the Alumitech'97, The Aluminum Association, USA, pp. 1231-1236
  5. H. G. Paris, T. H. Sanders Jr., Y. W. Riddle, 1998, in: T. Sato, S. Kobayashi, Y. Murakami (Eds.), Proceedings of the Sixth International Conference on Aluminum Alloys, Japan Institute of Light Metals, pp. 499-504
  6. V. G. Davydov, V. I. Elagin, V. V. Zakharov, T. D. Rostova, 1997, Met. Sci. Heat Treatment, Vol.38, pp 347-352 https://doi.org/10.1007/BF01395323
  7. Y. V. R. K. Prasad and S. Sasidhara, 1997, Hot Working Guide-a Compendium of Processing Maps, Materials Park, OH 44073-0002, ASM International
  8. Sung-Il Kim, Byung-Chul Ko, Ho-In Lee, Yeon-Chul Yoo, 2003, Met. Mater.-Int., Vol. 9, No. 5, pp. 447-451 https://doi.org/10.1007/BF03027149

Cited by

  1. Porthole extrusion process design for magnesium alloy bumper back beam vol.16, pp.7, 2015, https://doi.org/10.1007/s12541-015-0187-x
  2. A Study on Forming of Al-Zn-Mg-Sc Aluminum Alloy Bolts vol.21, pp.7, 2012, https://doi.org/10.5228/KSTP.2012.21.7.447