Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Deformation Behavior of 6063 Al Alloy Deformed by Shear-Drawing Method

전단-신선 가공된 6063 알루미늄 합금의 변형거동

  • Ko, Young Gun (School of Materials Science and Engineering, Yeungnam University) ;
  • Lee, Byung Uk (Department of Metallurgy and Materials Engineering, Hanyang University) ;
  • Shin, Dong Hyuk (Department of Metallurgy and Materials Engineering, Hanyang University)
  • 고영건 (영남대학교 신소재공학부) ;
  • 이병욱 (한양대학교 금속재료공학과) ;
  • 신동혁 (한양대학교 금속재료공학과)
  • Received : 2010.12.06
  • Published : 2011.04.25
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Abstract

This work investigated the microstructure and mechanical properties of 6063 Al alloy fabricated by shear-drawing (SD) technique where shear and drawing strains were combined together within a predetermined die. To find the optimum condition for sound deformation, three different dies having different inner angle and diameter of the exit channel were prepared. After single deformation of the present sample, the sound deformation took place without an abrupt failure of the sample if the inner angle would be greater than $135^{\circ}$ in this study, when the channel diameter of the SD die was reduced from 10 to 9 mm. Microstructural observation showed that the inner angle of $135^{\circ}$ was found to be more effective than that of $150^{\circ}$ in terms of the alignment of each grain to the shear direction imposed by SD method. In addition, the yield strength of the SD-deformed sample was twice higher than that of the initial counterpart while loosing ductility in tension.

Keywords

Acknowledgement

Supported by : 영남대학교

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