Friction scale effect in drilling natural fiber composites

Chegdani, Faissal; Mansori, Mohamed El

doi:10.1016/j.triboint.2017.12.006

Cited by 38 publications

(14 citation statements)

References 19 publications

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“…Figures 6 and 7 show that the specific cutting energy for the thrust force decreased with an increase in feed rate, but increased when the spindle speed increased. This result is in agreement with the literature [11]. It is also observed that an increase in the drill's diameter contributes to a decrease of the specific cutting energy for the thrust force ( Figure 6).…”

Section: Specific Cutting Energy For Thrust Forcesupporting

confidence: 93%

“…Venkateshwaran and ElayaPerumal [10] presented that an increase in the feed rate and the spindle speed contributed to the rise of the delamination factor during drilling of epoxy composite reinforced with banana fibers. Chegdani and Mansori [11] found that the use of coated tools generated an increase in specific cutting energy in the drilling of bidirectional flax fiber reinforced polypropylene. The study [12] explored the machinability of two types of green composites (Sisal/PLA and Grewia Optiva/PLA).…”

Section: Introductionmentioning

confidence: 99%

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Experimental Investigation on Machinability of Polypropylene Reinforced with Miscanthus Fibers and Biochar

et al. 2020

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The machinability of composite materials depends on reinforcements, matrix properties, cutting parameters, and on the cutting tool used (material, coating, and geometry). For new composites, experimental studies must be performed in order to understand their machinability, and thereby help manufacturers establishing appropriate cutting data. In this study, investigations are conducted to analyze the effects of cutting parameters and drill bit diameter on the thrust force, surface roughness, specific cutting energy, and dust emission during dry drilling of a new hybrid biocomposite consisting of polypropylene reinforced with miscanthus fibers and biochar. A full factorial design was used for the experimental design. It was found that the feed rate, the spindle speed, and the drill bit diameter have significant effects on the thrust force, the surface roughness, and the specific cutting energy. The effects of the machining parameters and the drill bit diameter on ultrafine particles emitted were not statistically significant, while the feed rate and drill bit diameter had significant effects on fine particle emission.

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Section: Specific Cutting Energy For Thrust Forcesupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on Machinability of Polypropylene Reinforced with Miscanthus Fibers and Biochar

et al. 2020

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“…Friction is a complex phenomenon that cannot be reduced to a single mechanism, but rather is a result of a simultaneous action of various mechanisms at different hierarchy and scale levels [30,31]. To understand this specific friction behavior of the two NFRP constituents, Fig.…”

Section: Friction Properties By Scratch Testmentioning

confidence: 99%

Multiscale tribo-mechanical analysis of natural fiber composites for manufacturing applications

Chegdani

Wang

Mansori

et al. 2018

Tribology International

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This paper aims to investigate the tribo-mechanical behavior of natural fiber reinforced plastic (NFRP) composites with specific consideration of the multiscale complex structure of natural fibers. Understanding the multiscale tribo-mechanical performances of these eco-friendly materials can lead to a better design of their manufacturing processes. Nanoindentation and nanoscratching experiments are conducted on flax fibers reinforced polypropylene composites using a triboindenter at a specific contact scale generated by the tip indenter radius (100 nm). Results confirm the significant effect of the geometric contact scale on the flax fibers stiffness. Moreover, flax fibers friction shows a multiscale behavior where the mechanisms of nano-friction are vastly different from those of micro-friction, which is related to the physical phenomena arisen at each scale.

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“…In recent years, natural fibers such pineapple, flax, jute, coconut, sugarcane bagasse, palm, and others have been extensively studied as an alternative to reinforce polymer matrix due to their advantages such as sustainable, low cost, low density and biodegradable features [1][2][3]. However, the incompatibility with nonpolar matrices, moisture adsorption and vulnerability to thermal degradation are the main disadvantages for the use of natural fibers in composites [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Polypropylene Composites Reinforced with Macadamia Nutshell Fibers

Cipriano¹,

Zanini²,

Dantas³

et al. 2019

Journal of Renewable Materials

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The use of natural fibers as an additive in polymeric matrices has attracted interest of the automotive industries, for its low cost, mechanical properties, biodegradability and lightness. However, the hydrophilic nature of the fiber makes polymer compatibility difficult. Fiber surface treatments can be used to enhance the fiber/matrix interface. In the present work, polypropylene (PP) composites reinforced with fibers from macadamia nutshell were obtained and characterized. Macadamia nutshell fibers were treated by an alkaline treatment with sodium hydroxide (NaOH 4%) to improve adhesion between fibers and matrix. Fibers were characterized by techniques of Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD). The PP was mixed with the macadamia fibers (treated and untreated), in proportions of 5 and 10% (wt/wt) using a thermokinetic mixer. Furthermore tensile, flexural and impact specimens (Pure PP and composites) were prepared by an injection molding process and tested for evaluation of mechanical properties. The results showed that the insertion of treated fibers in the PP matrix increased the stiffness of the composites. However, the composites reinforced with untreated fibers presented higher impact energy absorption when compared to composites reinforced with treated fibers.

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Friction scale effect in drilling natural fiber composites

Cited by 38 publications

References 19 publications

Experimental Investigation on Machinability of Polypropylene Reinforced with Miscanthus Fibers and Biochar

Experimental Investigation on Machinability of Polypropylene Reinforced with Miscanthus Fibers and Biochar

Multiscale tribo-mechanical analysis of natural fiber composites for manufacturing applications

Mechanical Properties of Polypropylene Composites Reinforced with Macadamia Nutshell Fibers

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