Tool Effects on Hybrid Laminates Drilling

نویسندگان

  • Luís Miguel Pereira Durão
  • João Manuel R. S. Tavares
  • Victor Hugo C. de Albuquerque
  • António T. Marques
  • António G. Magalhães
  • A. Aguiar Vieira
چکیده

Fibre reinforced plastics are increasing their importance as one of the most interesting groups of material on account of their low weight, high strength and stiffness. To obtain good quality holes, it is important to identify the type of material, ply stacking sequence and fibre orientation. In this paper, the drilling of quasi-isotropic hybrid carbon+glass/epoxy plates is analyzed. Two commercial drills and a special step drill are compared considering the thrust force and delamination extension. Results suggest that the proposed step drill can be a suitable option in laminate drilling. Key-words: carbon fiber, glass fiber, drill geometry, thrust force, damage, delamination, linear-elastic fracture mechanics, image processing and analysis

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تاریخ انتشار 2010