DOI QR코드

DOI QR Code

An Experiment of Machineable Width and Thickness of Airframe Thin Plate Structure

항공기 박판 구조의 가공가능 폭과 두께에 관한 실험 연구

  • Received : 2012.07.10
  • Accepted : 2012.10.17
  • Published : 2013.02.15

Abstract

The most important factor in an aircraft manufacturing is stability and weight reduction. Most of aircraft components are designed with thin plate type to satisfy weight reduction needs. The thin plate is difficult to be machined because it is apt to be vibrated by dynamic force generated in milling process. The most critical factor in machining of aluminum thin plate is width and thickness between stiffeners. So we tested many cases to find out the machinable minimum thickness at different width between stiffeners. And with the data obtained from many tests, this papers suggested the standard width thickness relation that is machinable without vacuum fixture. Machinist will be able to reduce the cost of aircraft thin plate parts by reducing the number of vacuum fixture used by the help of this standard.

Keywords

References

  1. Kim, M. K., 2001, "Diagnosis of Chatter Vibration using Frequency Domain in a Milling Process," Transactions of the Korean society of machine tool engineers, Vol. 10, No. 2, pp. 12-18.
  2. Svetan, R., Evan, G., Stan, N., Kevin, P., and Gregory, T., 2003, "Force and Deflection Modelling in Milling of Low-rigidity Complex Parts," Journal of Materials Processing Technology, Vol. 143-144, pp. 143-144.
  3. Davies, M. A., 2000, "Impact Dynamics in Milling of Thin-walled Structures," Nonlinear Dynamics, Vol. 22, No. 2, pp. 375-392. https://doi.org/10.1023/A:1008364405411
  4. Wan, M., Zhang, W. H., Tan, G., and Qin, G. H., 2008, "Systematic Simulation Procedure of Peripheral Milling Process of Thin-walled Workpiece," Journal of Materials Processing technology, Vol. 197, No. 1-3, pp. 122-131. https://doi.org/10.1016/j.jmatprotec.2007.06.005
  5. Vincent, T., Lionel, A., Gilles, D., and Gilles, C. L., 2006, "Integration of Dynamic Behaviour Variations in the Stability Lobes Method : 3D Lobes Construction and Application to Thin-walled Structure Milling," Int J Adv Manuf Technol, Vol. 27, No. 7-8, pp. 638-644. https://doi.org/10.1007/s00170-004-2241-1
  6. Campa, F. J., Lopez, L. N., Lamikiz, A., and Sanchez, J. A., 2007, "Selection of Cutting Conditions for a Stable Milling of Flexible Parts with Bull-nose End Mills," Jornal of Materials Processing Technology, Vol. 191, No. 1-3, pp. 279-282. https://doi.org/10.1016/j.jmatprotec.2007.03.023
  7. Lee, Y. H., 2003, Evaluation of machinability according to cutter orientation in cantilever shape, A Thesis for a Master, Pusan National University, Republic of Korea, pp. 37-41.
  8. Knight, W. A., and Ko, T. J., 1998, Fundamentals of machining and machine tools, Dongmoungsa, pp. 77-97.
  9. Ger, and Timoshenko, 1990, Mechanics of Materials, PWS Publishing Company, pp. 529.
  10. Blevins, R. D., 1995, Formulas for Natural Frequency and Mode Shape, Van Nostrand Reinhold Co., pp. 233-274.

Cited by

  1. A Study on Machining Distortion of Airfoil Effected by Fixture and Process vol.23, pp.5, 2014, https://doi.org/10.7735/ksmte.2014.23.5.465