Machinability of natural-fibre-reinforced polymer composites: Convectional vs ultrasonically-assisted machining

D. Wang; P. Y.  Onawumi; Sikiru O. Ismail; Hom N. Dhakal; I. Popov; V. V.  Silberschmidt; A. Roy

doi:10.1016/j.compositesa.2019.01.028

Machinability of natural-fibre-reinforced polymer composites: Convectional vs ultrasonically-assisted machining

D. Wang, P. Y. Onawumi, Sikiru O. Ismail, Hom N. Dhakal, I. Popov, V. V. Silberschmidt, A. Roy

Research output: Contribution to journal › Article › peer-review

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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.

Original language	English
Pages (from-to)	188–195
Number of pages	8
Journal	Composites Part A: Applied Science and Manufacturing
Volume	119
Early online date	31 Jan 2019
DOIs	https://doi.org/10.1016/j.compositesa.2019.01.028
Publication status	E-pub ahead of print - 31 Jan 2019

Keywords

A. Natural fibres
D. Optical microscopy
E. Machining

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title = "Machinability of natural-fibre-reinforced polymer composites: Convectional vs ultrasonically-assisted machining",

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.",

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AU - Wang, D.

AU - Onawumi, P. Y.

AU - Ismail, Sikiru O.

AU - Dhakal, Hom N.

AU - Popov, I.

AU - Silberschmidt, V. V.

AU - Roy, A.

PY - 2019/1/31

Y1 - 2019/1/31

N2 - 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.

AB - 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.

KW - A. Natural fibres

KW - D. Optical microscopy

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JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

ER -

Machinability of natural-fibre-reinforced polymer composites: Convectional vs ultrasonically-assisted machining

Abstract

Keywords

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