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Title: Machinability of natural-fibre-reinforced polymer composites: Conventional vs ultrasonically-assisted machining
Authors: Wang, Dong
Onawumi, P.Y.
Ismail, S.O.
Dhakal, H.N.
Popov, I.
Silberschmidt, Vadim V.
Roy, Anish
Keywords: Natural fibers
Optical microscopy
Issue Date: 2019
Publisher: © Elsevier BV
Citation: WANG, D. ... et al., 2019. Machinability of natural-fibre-reinforced polymer composites: Conventional vs ultrasonically-assisted machining. Composites Part A: Applied Science and Manufacturing, 119, pp. 188-195.
Abstract: Natural-fibre-reinforced polymer (NFRP) composites are becoming a viable alternative to synthetic fibre based composites in many industrial applications. Machining is often necessary to facilitate assembly of parts in a final product. This study focuses on a comparative experimental analysis of the effects of conventional drilling (CD) and a hybrid ultrasonically-assisted drilling (UAD) of a hemp fibre-reinforced vinyl ester composite laminate. The results obtained indicate that UAD is more efficient when compared to CD for a range of drilling conditions. It yields lower cutting forces and energy resulting in reduced machining-induced damage in the composite, including diminished burr formation and fibre pull-outs. The holes drilled with UAD exhibit improved surface finish and hole quality when compared to those produced with CD. The study demonstrates the applicability of UAD as a viable machining process for improved machinability of heterogeneous NFRP composite materials.
Description: This paper is in closed access until 31st January 2020.
Sponsor: SOI sincerely acknowledges the funding provided by the Niger-Delta Development Commission of Federal Government, Nigeria (NDDC/DEHSS/2013PGFS/OND/3).
Version: Accepted for publication
DOI: 10.1016/j.compositesa.2019.01.028
URI: https://dspace.lboro.ac.uk/2134/36865
Publisher Link: https://doi.org/10.1016/j.compositesa.2019.01.028
ISSN: 1359-835X
Appears in Collections:Closed Access (Mechanical, Electrical and Manufacturing Engineering)

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