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Aerospace 2018, 5(1), 9; https://doi.org/10.3390/aerospace5010009

Pneumatically Powered Drilling of Carbon Fibre Composites Using Synthetic Biodegradable Lubricating Oil: An Experimental Study

School of Computing, Science and Engineering, University of Salford, Salford M5 4WT, UK
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Received: 27 November 2017 / Revised: 7 January 2018 / Accepted: 11 January 2018 / Published: 16 January 2018
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Abstract

Carbon fibre composites are a key component of aircraft structures because of their enhanced material properties such as favourable strength to weight ratios when compared to metal alloys. During the assembly process of an aircraft, carbon fibre components are joined to other structures using rivets, bolts, and fasteners, and as part of the joining process, the components will need to be machined or drilled. Unlike metal alloys, composites are sensitive to heat and are vulnerable to internal structural damage from machining tools. They are also susceptible to a reduction in strength when fibres are exposed to moisture. In the machining process, carbon fibre composites may be drilled using oils to lubricate carbide machining tools. In this study, a description of the experimental apparatus is provided along with an investigation to determine the influence synthetic biodegradable lubricating oil has on drill rotational speed, drilling load, and drilling temperature when using a pneumatic drill to machine carbon fibre composite material. View Full-Text
Keywords: drilling; fibre reinforced composites; CFRP; experiment drilling; fibre reinforced composites; CFRP; experiment
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Morrell, C.M.J.; Hampson, P.R. Pneumatically Powered Drilling of Carbon Fibre Composites Using Synthetic Biodegradable Lubricating Oil: An Experimental Study. Aerospace 2018, 5, 9.

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