Experimental investigations on drilling of lignocellulosic fiber reinforced composite laminates

Choudhury, Mridusmita Roy; Srinivas, Maddula Shanmuka; Debnath, Kishore

doi:10.1016/j.jmapro.2018.05.032

Cited by 68 publications

(32 citation statements)

References 34 publications

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“…Choudhury et al. 71 presented their work on drilling performance of lignocellulosic fibre reinforced polymer composites. From their experimental work, the drilling performance was evaluated in terms of drilling forces, delamination and surface roughness of the machined hole by using four-facet, eight-facet, dagger, step and parabolic drill bits at a different combination of feed and speed of the drill bit.…”

Section: Factors Affecting Hole Qualitymentioning

confidence: 99%

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Factors affecting hole quality during drilling of natural fiber-reinforced composites: A comprehensive review

Kudus

Ratnam

Akil

2020

Journal of Reinforced Plastics and Composites

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In recent years, with greater emphasis on environmental and sustainability aspects of engineering materials, natural fiber-reinforced polymer composites (NFRPCs) have gained significance in practical applications because of their numerous advantages. Although many researchers have developed NFRPCs using various types of natural fibers and matrix materials, in real-world applications of NFRPCs, secondary operations, such as milling and drilling, are necessary to complete the components or parts assembly. Because the drilling of NFRPCs is different from drilling of metals, there are concentration of studies interested in the aspects of drillability of NFRPCs in order to assess and understand issues related to drilled hole quality in NFRPCs. In this paper, a comprehensive review of factors that affect the drilled hole quality in NFRPCs is presented. Past researches where correlation between the manufacturing methods of NFRPCs and drillability of the composites are reported are reviewed in-depth. The novelty of this review is that it identifies the major factors that affect the quality of the drilled features from a composite manufacturing perspective and provides recommendations for the best NFRPCs manufacturing process to produce drill-friendly composites. The major factors were classified into composite manufacturing factors and drilling parameters factors.

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Section: Factors Affecting Hole Qualitymentioning

confidence: 99%

“…Figure13. Damage produced at feed of 22.4 mm/min and spindle speed of 2000 r/min with different drill geometries 71. …”

mentioning

confidence: 99%

Factors affecting hole quality during drilling of natural fiber-reinforced composites: A comprehensive review

Kudus

Ratnam

Akil

2020

Journal of Reinforced Plastics and Composites

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“…Due to owning lightweight and flexibility characteristics, the use of fiber-reinforced composites is widely extending in aerospace fields and driven by the developments in manufacturing technologies, which have made the production process more cost effective. This extensive application rises from the excellent customizable mechanical properties while being much more lightweight than metallic alloys [1][2][3]. For instance, some reports show that composite materials are used extensively on new generation aircraft, even as important structural components e.g.…”

Section: Introductionmentioning

confidence: 99%

Hole quality assessment in drilling process of basalt/epoxy composite laminate subjected to the magnetic field

Najarian

Alipour

Razavykia

et al. 2019

Mechanics & Industry

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Drilling is one of the most important machining processes which are currently carried out on fiber-reinforced composites. These composites possess a layered structure and different properties through their thickness. When drilling such structures, internal defects like delamination occur, caused by the drilling forces and their uneven distribution among the plies. The current study investigates the effect of magnetic field on drilling process of basalt/epoxy composite laminate in order to reduce delamination and the thrust force and improve some hole quality parameters i.e. roughness and cylindricity. A comparison is made between the responses for both normal drilling and drilling with applying a magnetic field. For this purpose, after finding the best combinations of normal drilling parameters, magnetic field is applied to the different configurations of solenoids on the setup of the drilling process. The results highlighted that using different magnet solenoids on the top and the bottom of drilling zone reduces the delamination and can obtain better roughness and cylindricity with lower damage.

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“…Contudo, compósitos reforçados com fibra natural possuem também muitas vantagens estruturais importantes, como uma baixa massa específica, boas propriedades mecânicas; e atendem o apelo ambiental vigente. Por esses motivos descritos, os compósitos reforçados com fibras lignocelulósicas possuem várias aplicações no ramo da engenharia [5]. As resinas epoxídicas possuem propriedades mecânicas e elétricas desejáveis como estabilidade térmica, resistência à corrosão, boa adesão a outros materiais e baixa massa específica [6].…”

Section: Introductionunclassified

Influência Do Surfactante Em Algumas Propriedades Mecânicas De Compósitos Epóxi/Fibras De Fique

Silva¹,

Monteiro²,

Oliveira³

et al. 2019

ABM Proceedings

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Resumo As fibras naturais tem despertado um interesse da comunidade científica em várias áreas, inclusive na área de defesa nacional, sendo utilizado na confecção de compósitos de matriz epóxi, em blindagens balísticas. As fibras naturais possuem inúmeras vantagens como o baixo custo e o seu baixo impacto ambiental. Uma das desvantagens no processamento desses compósitos é a natureza hidrofóbica da matriz epoxídica e a natureza hidrofílica das fibras naturais. Um dos mecanismos de absorção da energia cinética do projétil é o descolamento das fibras da matriz, sendo, portanto, necessária uma boa adesão do reforço na matriz. A utilização de surfactantes pode minimizar esse problema da adesão ao formar uma ponte, ligando a matriz hidrofóbica com as fibras hidrofílicas. Neste estudo foi realizado ensaios de tração em amostras, contendo uma porcentagem fixa em 30% de volume em fibras de fique e a porcentagem de surfactante com valores de 0%, 0,5%, 1,5% e 2,5% em volume. Os resultados demonstram um aumento de resistência nas amostras contendo 0,5% de surfactante.. Palavras-chave: Ensaio de tração; surfactante; resina epóxi; compósito.

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Experimental investigations on drilling of lignocellulosic fiber reinforced composite laminates

Cited by 68 publications

References 34 publications

Factors affecting hole quality during drilling of natural fiber-reinforced composites: A comprehensive review

Factors affecting hole quality during drilling of natural fiber-reinforced composites: A comprehensive review

Hole quality assessment in drilling process of basalt/epoxy composite laminate subjected to the magnetic field

Influência Do Surfactante Em Algumas Propriedades Mecânicas De Compósitos Epóxi/Fibras De Fique

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