Research Output
The effect of peel ply layer on hole integrity when drilling carbon fibre-reinforced plastic
  Fibre/matrix delamination is a common problem when cutting carbon fibre-reinforced plastic (CFRP) that can have a detrimental effect on workpiece mechanical properties and hence compromise the in-service performance of the composite part. The present paper details experimental results when drilling small holes (1.5 mm diameter) through backed and un-backed CFRP laminates using tungsten carbide twist drills to determine the effect of peel ply layers (∼100 µm thick nylon sheet attached on both sides of 3 mm thick laminates) on hole entry and exit delamination. Considerable reduction in damage relating to fuzzing, spalling, edge chipping, and delamination was observed when drilling the nylon-backed CFRP material, with scanning electron micrographs showing significantly inferior hole quality for the corresponding un-backed workpieces, particularly at hole exit.

  • Type:

    Article

  • Date:

    03 June 2011

  • Publication Status:

    Published

  • Publisher

    SAGE

  • DOI:

    10.1177/2041297510393797

  • ISSN:

    0954-4054

  • Funders:

    Historic Funder (pre-Worktribe)

Citation

Shyha, I., Soo, S. L., Aspinwall, D., & Bradley, S. (2011). The effect of peel ply layer on hole integrity when drilling carbon fibre-reinforced plastic. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 225(7), 1217-1223. https://doi.org/10.1177/2041297510393797

Authors

Keywords

drilling, composites, carbon fibre-reinforced plastic, delamination

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