Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Estimation of Machinability Turning Process for Al7075-T6 by Cryogenic Heat Treatment

극저온 열처리된 Al7075-T6의 선삭특성 분석

  • Lim, Hak Jin (PoongSan Corporation) ;
  • Oh, Jeong Kyu (School of Mechanical Engineering, Pusan National University) ;
  • Kim, Pyeong Ho (School of Mechanical Engineering, Pusan National University) ;
  • Lee, Jong Hwan (Dept. of Mechatronics Engineering, Korea Aviation Polytechnic) ;
  • Kim, Jeong Suk (School of Mechanical Engineering, NCRC/NSDM, Pusan National University)
  • Received : 2013.06.11
  • Accepted : 2013.08.29
  • Published : 2013.10.15
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Abstract

In recent years, aluminum processing has been increasing in the aerospace, vehicle, airplane industries etc., because aluminum has abundant resources and has a high specific strength. Aluminum alloys have a high coefficient of thermal expansion therefore, it is necessary to consider the temperature problem in the cutting process. The objective of this research is to investigate the machinability of a hardened aluminum alloy Al7075-T6 by using cryogenic heat treatment. The machining test is conducted by comparing the cutting force and surface roughness, corresponding to various cutting conditions of depth of cut, cutting speed, and feed rate, with those of Al7075-T0.

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References

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