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A Study on Roundness Improvement of Heat-treated Large Diameter Aluminum Tube-turning with Collet Type Jig

열처리된 대직경 알루미늄 튜브선삭에서 콜릿지그를 통한 진원도 향상에 관한 연구

  • 김평호 (부산대학교 대학원 기계공학부) ;
  • 임학진 ((주)풍산 방산기술연구소) ;
  • 이정민 ((주)풍산 방산기술연구소) ;
  • 이종환 (한국폴리텍항공대학 항공메카트로닉스과) ;
  • 김정석 (부산대학교 기계공학부/정밀정형 및 금형연구소(ERC/NSDM))
  • Received : 2012.08.21
  • Accepted : 2012.09.17
  • Published : 2012.10.15

Abstract

The purpose of this study is to evaluate the proposed jig for turning process of large-scale aluminum tube of D500mm through Finite Element Analysis (FEA). Also, a machining evaluation is conducted with general heat-treated and cryogenic heat-treated tubes. Dimensions of the specimens are determined to be suitable for collet appearance. The characteristics of equivalent stress and strain according to the expansion of the collet are evaluated by FEA. The aluminum tubes which are heat-treated by T4/T6 condition and cryogenic condition are machined by using a large-scale lathe machine and the roundness of machined tube is evaluated by using a 3D measuring machine. Through the results of this study, effects of each heat treatment and residual stress on the roundness are established.

Keywords

References

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Cited by

  1. Estimation of Machinability Turning Process for Al7075-T6 by Cryogenic Heat Treatment vol.22, pp.5, 2013, https://doi.org/10.7735/ksmte.2013.22.5.865