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

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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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
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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.

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References

  1. Park, K. J., Ko, D. H., Kim, B. M., Lim, H. J., Lee, J. M., and Cho, Y. R., 2010, "Effect of Cryogenic Treatment on Residual Stress and Tensile Properties for 6061 Al Alloy," Kor. J. Met. Mater., Vol. 49, No. 1, pp. 9-16.
  2. Lee, H. I., Han, Y. S., Kim, D. H., and Kim W. T., 2009, Comprehension and Practical use of an Aluminum Application Technology, The Korea Metal Journal, Republic of Korea.
  3. Jang, H. S., 1997, The handbook of advanced Aluminum Technology, Hanlimwon, Republic of Korea.
  4. Kang, D. H., Lee, B. J., Yun, C. B,. and Kim, K. W., 2010, "Study on Torsional Strength of Induction Hardened Axle Shaft," Transactions of the KSME A, Vol. 34, No. 5, pp. 645-649. https://doi.org/10.3795/KSME-A.2010.34.5.645
  5. Ian, M., 2004, Residual Stress Reduction During Quenching of Wrought 7075 Aluminum Alloy, A Thesis for a Master, Worcester Polytechnic Institute, United States.
  6. Jeon, Y. S., Jang, S. M., and Kang S. G., 2010, "Influence of Fixed Pressure on the Machining Accuracy of Inner Diameter of Hollow Shaft," KSMTE, Vol. 19, No. 3, pp. 381-387.
  7. Kim, H. S., and Lee, D. N., 1978, "Relief of Residual Quenching Stresses in 2024 Aluminum Alloy," Kor. J. Met. Mater., Vol. 16, No. 4, pp. 233-242.
  8. Kim, S. I., 2006, "A Study on the Cutting Characteristics of Al Alloy in End Milling for Various Hardnesses(I)," Transactions of KSMTE, Vol. 15, No. 1, pp. 82-87.

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