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Title: Ultrasonically assisted drilling of aerospace CFRP/Ti stacks
Authors: Onawumi, P.Y.
Roy, Anish
Silberschmidt, Vadim V.
Merson, Eleanor
Keywords: Drilling
Ultrasonically assisted drilling
Conventional drilling
CFRP/Ti stackHole quality
Thrust force torque
Issue Date: 2018
Publisher: © The Authors. Published by Elsevier
Citation: ONAWUMI, P.Y. ... et al., 2018. Ultrasonically assisted drilling of aerospace CFRP/Ti stacks. Procedia CIRP, 77, pp. 383 - 386.
Abstract: © 2018 The Authors. Published by Elsevier Ltd. Structural application involving aerospace stacks consisting of carbon-fiber-reinforced plastics (CFRP) and metals (such as aluminium and titanium) are characterized by their superior mechanical properties and relative ease of design. In many of such applications, drilling is required for hole making to facilitate fasteners for assembly. However, drilling with conventional methods pose several well-documented challenges including a requirement of an additional step for de-burring, increased tool wear, damage in the composite phase etc. Ultrasonically assisted drilling (UAD) is a hybrid machining technique, which has proven to enhance drilling quality in hard-to-machine materials. In this paper, UAD of stacks is implemented demonstrating significant improvement in hole quality produced in aerospace CFRP/Ti study with reduced drilling forces and energy spent.
Description: This paper was presented at the 8th CIRP Conference on High Performance Cutting (HPC 2018, Budapest, Hungary, June 25-27th. This is an Open Access Article. It is published by Elsevier under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/
Version: Published
DOI: 10.1016/j.procir.2018.09.041
URI: https://dspace.lboro.ac.uk/2134/36530
Publisher Link: https://doi.org/10.1016/j.procir.2018.09.041
ISSN: 2212-8271
Appears in Collections:Conference Papers and Presentations (Mechanical, Electrical and Manufacturing Engineering)

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