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

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Machining Distortion of Airfoil Effected by Fixture and Process

에어포일 기계가공 변형 연구 : 지그와 가공단계의 영향

  • Ra, Kyeong-Woon (Department of Mechanical Engineering, Gyeongsang National University) ;
  • Ji, Seong-Bum (Samwoo Metal IND., LDT) ;
  • Jo, Yeong-Jin (Samwoo Metal IND., LDT) ;
  • Park, Je-Hong (Department of Mechanical Engineering, Gyeongsang National University) ;
  • Seo, Sang-Won (Department of Mechanical Engineering, Gyeongsang National University) ;
  • Kim, Su-Jin (Department of Mechanical Engineering, Gyeongsang National University)
  • Received : 2014.06.10
  • Accepted : 2014.08.22
  • Published : 2014.10.15
Download PDF
⟨ Previous Next ⟩

Abstract

Thin and wide airfoils are difficult to be machined precisely because they are deformed during and after machining processes. This paper presents the results of the airfoil deformation measured by three-dimensional (3D) scanning equipment. It also discusses the influences of fixture and the machining process on the distortion of the thin airfoil. The simple fixture bended the thin airfoil to a U-shape at the first process, and the vacuum fixture decreased the distortion of the machined airfoil at the second process. The long and thin airfoil supported by two points was buckled during the machining at its two end-regions at the third process. Results from this study suggest that use of vacuum fixture decreases the machining distortion of thin and wide airfoils.

Keywords

References

  1. Shin, Y. B., Kim, S. J., 2013, An Experiment of Machineable Width and Thickness of Airframe Thin Plate Structure, J. Korean Soc. Manuf. Technol. Eng. 22:1 162-167. https://doi.org/10.7735/ksmte.2013.22.1.162
  2. Hwang, Y. K., Lee, C. H., 2010, Prediction of Relative Deformation between Cutting Tool and Workpiece by Cutting Force, Journal of the KSPE 27:9 86-93.
  3. Lee, M. J., Hwang, Y. K., Lee, C. M., 2010, A Study on the Development of Analysis Model for Prediction of Relative Deformation between Cutting Tool and Workpiece, Journal of the KSPE 27:9 20-26.
  4. Richter-Trummer, V., Koch, D., Witte, A., Santos, J. F., Castro, P. M. S. T., 2013, Methodology for Prediction of Distortion of Workpieces Manufactured by High Speed Machining Based on an Accurate Through-the-Thickness Residual Stress Determination, Int. J. Adv. Manuf. Technol. 68 2271-2281. https://doi.org/10.1007/s00170-013-4828-x
  5. Robinson, J. S., Hossain, S., Truman, C. E., Paradowska, A. M., Hughes, D. J., Wimpory, R. C., Fox, M. E., 2010, Residual Stress in 7449 Aluminium Alloy Forgings, Materials Science and Engineering A 527 2603-2612. https://doi.org/10.1016/j.msea.2009.12.022
  6. Lee, U. M., Kim, N. K., Kim, H. J., Lee, I. S., 2009, A Study on Machining Deformation of Major Structure in Aircraft, Proceedings of the KSMPE Autumn Conference 17-19.
  7. Lee, J. H., Lee, D. S., Lee, E. S.. Shin, B. S., 2001, A Study on the Evaluation on High-Speed Machining Characteristics of AL7075, Proceedings of theKOMMA Autumn Conference 220-224.