Friction Characteristics of Sheets for The Surface Finish and The Stoning Directions of the Dies

금형의 표면정도와 가공방향에 따른 판재의 마찰특성

  • 김동환 (부산대학교 대학원 정밀기계공학과) ;
  • 김병민 (부산대학교 정밀정형 및 금형가공연구센터) ;
  • 오세욱 ((주)현대자동차 금형기술개발팀) ;
  • 박춘달 ((주)현대자동차 금형기술개발팀) ;
  • 황지선
  • Published : 2001.02.01


This paper investigates the combined effects of parameters such as die surface finish, die directionality of stoning contact pressure and draw speed on the resulting coefficient of friction. Also, this study show the correlation between the NN(Neural Network) and DOE(Design of Experiments) to reduce the number of experiments without the loss of the effects of parameter upon coefficient of friction. The experiments were run in random order with at least three replicates. It was found that the directional stoning orthogonal to the pulling direction is lower friction than directional stoning parallel to the pulling directi on using FCD55 die and SPCEN.


  1. Kotchman, D.P., Kim, I., Sa, C-Y. and D.Lee, 1992, 'Determination of Friction Behavior Sheet Metals Using Orthogonal Arrays,' J of Materials Engineering and Performance,pp.555-564
  2. Kim, D.H., Ko D.C. and Kim, B.M., 1999, 'Application of Artificial Neural Network and Taguchi Method to Preform Design in Metal Forming Considering Workability,' Int. J Machine Tools & Manufacture, Vol. 39, pp. 771-185
  3. Lanzon, J.M. Cardew-Hall, M.J. and Hodgson, P.D., 1998, 'Characterizing Frictional Behaviour in Sheet Metal Forming,' J of Materials Processing Technology, pp. 251-256
  4. 김 동환, 고 대철, 김 병민, 최 재찬, 1998, '가공성을 고려한 다단계 금속성형공정의 예비성형체 설계방법: 다구찌 방법을 이용한 신경망의 적용,' 대한기계학회논문집 A 권, 제 22 권 제 9 호,pp. 1615-1624
  5. Montgomery, D.C., 1984, Design and Analysis of Experiments, Willy, New York, 2nd ed
  6. Rumelhart, D.E., Hinton, G.E. and Wiliams, R.J., 1986, Learning Internal Representations by Error Propagation, Parallel Distribution Processing Cambridge MA: MIT Press, pp. 318-362
  7. Kim, D.H., Kim, D.J., and Kim, B.M., 1999, 'The Application of Neural Networks and Statistical Methods to Process Design in Metal Forming Processes,' Int. J Adv. Manuf. Technol, Vol. 15, pp. 886-894
  8. Wojtowicz, W.J., 1970, 'Lubricating Characteristics of Drawing Compound,' SME creative Mfg Semi
  9. Box, G.P., Hunter, W.G.. and Hunter, J.S., 1978, Statistics for Experiments, Wiley, New York
  10. Ross, P.J., 1988, Taguchi Techniques for Quality Engineering, McGraw-Hill
  11. S.C. Kang and K.C.Ludema, 1990, 'The Beaking-in of Lubricated Surface,' Wear, Vol. 100, pp. 315-331
  12. Bossler, R. B. Jr., 1965, 'Improved Boundary Layer Lubrication Behavior,' Lubr. Engrg, Vol. 21, No. 3, pp. 104-111
  13. Martz, L.S., 1949, 'Preliminary Report of Developments in Interrupted Surface Finishes,' Proc. Inst. Mech. Engrs, Vol. 161, pp. 1-9
  14. Staph, H.E., Ku, P.M. and Carper, H.J., 1973, 'Effect of Surface Roughness and Surface Texture on Scuffing,' Mechanism and Machine Theory, Vol. 8, pp. 197-208
  15. Bowden, F.A. and Tabor, D., 1954, The Friction and Lubrication of Solids, Oxford Press
  16. Schey, J.A., Tribology in Metal Working: Friction, lubrication and wear, 1983, American Society for Metal Park, OH