On the Machinability of CFRP Composites Dependent on the Number of Stacking and Drill Diameter

CFRP복합재료의 적층수와 드릴직경에 관한 연구

  • 정성택 (조선대학교 대학원 기계공학과) ;
  • 박종남 (조선대학교 대학원) ;
  • 조규재 (조선대학교 기계공학부)
  • Published : 2003.12.01

Abstract

CFRP composite has a lot of merits such as mechanical characteristic, light weight and thermal resistance. For these merits CFRP is applied to so many industrial area. In order for the composite materials to be used in the aircraft structures or machine elements, accurate surfaces for bearing mounting or joints must be provided, which require precise machining. In this paper, the relationship between the stack thickness and drill diameter is examined from the drilling experiment, which is the drilling of 16, 32, 48p1ies specimen with the ${\phi}8$, ${\phi}10$, ${\phi}12mm$ cemented carbide drill. The results are analyzed with consideration of cutting force, stack thickness and drill diameter.

Keywords

References

  1. Jcantwell, W. J. and Morton. J., 1985, 'Residual Strength Assessment of Impact Damaged CFRP Laminates', Proceeding of Int. Conf. Post-Failure Analysis of FIBER Reinforced Composites, Dayton, Ohio, Vol. 3, PP. 241-257
  2. Malick, P. K., 1988, Fiber-Reinforced Composites, Marcel Decker, Inc., pp. 3-4
  3. Ferreira, J. R., Coppini, N. L. and Miranda, G. W. A., 1999, 'Machining Optimizationin Carbon Fiber Reinforced Composite Materials', J. of MPT, Vol. 92, pp. 135-140
  4. Rahman, M., Ramakrishna, S., Prakash, J. R. S. and Tan, D. C. G., 'Machinability Study of Carbon Fiber Reinforced Composite', J. of MPT, Vol. 89-90, pp. 292-297
  5. Chen, W.C., 1997, 'Some Experimental lnvestigations in the Drilling of Carbide of Carbon Fiber-reinforced Plastics(CFRP) Composite Laminates', Int. J. for Machine Tools & Manufacture, Vol. 37, No.8, pp. 302-315
  6. Kim, H. B., 1998, 'Precise Drilling Characteristics of Glass Fiber Epoxy Composite Material', Trans. of KSMTE, Vol. 7, No.4, pp. 117-122
  7. Kim, S. I., 2000, 'Drilling Characteristics of Glass Fiber Reinforced Polyester', Trans. of KSMTE, Vol. 9, No.3, pp. 90-95