Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Study on the Friction Characteristics for AZ31 Sheet as Various Surface Treatment of SKD11

SKD 11 금형 표면처리에 따른 AZ31 판재 마찰 특성 연구

  • 장성호 (한국생산기술연구원 금형 성형 연구부) ;
  • 신광호 (한국생산기술연구원 금형 성형 연구부) ;
  • 김흥규 (한국생산기술연구원 금형 성형 연구부) ;
  • 전용준 (한국생산기술연구원 금형 성형 연구부) ;
  • 허영무 (한국생산기술연구원)
  • Received : 2010.08.16
  • Accepted : 2010.10.13
  • Published : 2010.11.01
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Abstract

The material used is a commercial magnesium based alloy AZ31(Mg-3Al-1Zn) sheet with a thickness of 0.8 mm. Friction tests at various temperatures(R.T. to $200^{\circ}C$) and at various holding forces in the 4 type molds were carried out to investigate the coefficient of friction. A warm drawing process with a local heating and cooling technique was developed in the Mg alloy sheet forming to improve formability because it is very difficult for Mg alloy to deform at room temperature by the conventional method. So, the coefficient of friction at various mold surface treatment conditions in this study was needed to develop the Mg alloy sheet forming technology.

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References

  1. D. G. Choo, J. H. Lee, 2005, The Effect of Tool surface Treatment and Temperature on Deep Drawability of AZ31 Magnesium Alloy Sheet, Proc. of KSTP 2005 Fall Conference, pp. 118-121.
  2. S. H. Kim, K. D. Park, J. H. Jang, K. T. Kim, H. W. Lee, G. A. Lee, K. P. Kim, 2008, Experimental and Analytical Researches on Mechanical properties Related to Formability of AZ31B Alloy Sheet, Trans. Mater. Process, Vol. 17, pp. 466-472. https://doi.org/10.5228/KSPP.2008.17.7.466
  3. S. C. Cho1, H. J. Kim, H. Y. Kim, S. M. Hong, Y. S. Shin, 2008, Tool Temperatures to Maximize the warm Deep-drawability of AZ31B Sheet, Proc. of KSTP 2008 Fall Conference, pp. 66-70.

Cited by

  1. Friction effect of surface treated tools used for warm forming of Mg alloy sheets vol.15, pp.12, 2014, https://doi.org/10.1007/s12541-014-0637-x