Analysis of uncut fibres at machined holes in carbon fibre-reinforced plastics (CFRP) using digital image processing

Authors

  • Norbert Ibriksz
  • Norbert Geier

Keywords:

Carbon fibre-reinforced polymers, CFRP, machinability, digital image processing, uncut fibres

Abstract

Unlike metals, carbon fibre-reinforced plastics (CFRP) have anisotropic and inhomogeneous structure, in addition the reinforcements have strong wear-effect. Therefore those are difficult-to-cut materials. The main aim of this research is to find relation between the cutting tool diameter and the quality of the machined holes in CFRP. Milling experiments were designed using the full factorial design of experiments method. The experiments were conducted on a Kondia B640 machining centre. The machined surfaces were scanned with a digital microscope; the collected data were evaluated by digital image processing (DIP) techniques. The influence of tool-diameter and feed rate were examined and discussed in order to optimise the hole-machining process in CFRP.

References

[1] https://www.visiongain.com/Report/1964/Carbon-Fibre-Reinforced-Plastic-(CFRP)-Composites-Market-Report-2017-2027
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[3] A. Sadek, M. Meshreki, M. H. Attia (2012), Characterization and optimization of orbital drilling of woven carbon fiber reinforced epoxy laminates, CIRP Annals-Manufacturing Technology, 61, 123-126
[4] Robert Voß, Marcel Henerichs, Stephan Rupp, Friedrich Kuster, Konrad Wegener (2016), Evaluation of bore exit quality for fibre reinforced plastics including delamination and uncut fibres, CIRP Journal of Manufacturing Science and Technology, 12, 56-66
[5] Jinyang Xu, Qinglong An, Ming Chen (2014), A comparative evaluation of polycrystalline diamond drills in drilling high-strength T800S/250F CFRP, Composite Structures, 117, 71-82
[6] Ali Faraz, Dirk Biermann, Klaus Weinert (2009), Cutting edge rounding: An innovative tool wear criterion in drilling CFRP composite laminates, International Journal of Machine Tools and Manufacture, 49, 1185-1196

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Published

2018-09-10

Issue

Vol. 1 No. 3 (2018): Bánki Közlemények Autumn/Winter (2018)

Section

Manufacturing Technology (Gyártástechnológia)

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