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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Wang, D.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (42/42 displayed)
- 2023Bituminous Binder and Bituminous Mixture Modified with Waste Polyethylenecitations
- 2023Bituminous Binder and Bituminous Mixture Modified with Waste Polyethylenecitations
- 2022Rheological properties of asphalt binder modified with waste polyethylene: An interlaboratory research from the RILEM TC WMRcitations
- 2021RF-Characterization of HZO Thin Film Varactorscitations
- 2021Direct ink writing of bismuth molybdate microwave dielectric ceramics
- 2020Investigation on the low temperature properties of asphalt binder: Glass transition temperature and modulus shift factorcitations
- 2020Machinability of natural-fibre-reinforced polymer composites: Convectional vs ultrasonically-assisted machining
- 2020Effect of the Crystallization Conditions on the Exclusion/Inclusion Balance in Biodegradable Poly(butylene succinate- ran-butylene adipate) Copolymerscitations
- 2020Multi-material additive manufacturing of low sintering temperature Bi2Mo2O9 ceramics with Ag floating electrodes by selective laser burnout
- 2019High quality factor cold sintered Li2MoO4BaFe12O19 composites for microwave applicationscitations
- 2019Fluoride-Salt-Cooled High-Temperature Reactor (FHR) Using British Advanced Gas-Cooled Reactor (AGR) Refueling Technology and Decay Heat Removal Systems That Prevent Salt Freezing
- 2019A mixture of coal wash and fly ash as a pavement substructure material
- 2019Decarbonising ceramic manufacturing: A techno-economic analysis of energy efficient sintering technologies in the functional materials sector
- 2019Sensitivity of the superconducting state in thin filmscitations
- 2019Sensitivity of the superconducting state in thin films
- 2019Impact of asphalt aging temperature on chemo-mechanicscitations
- 2019Decarbonising ceramic manufacturing : a techno-economic analysis of energy efficient sintering technologies in the functional materials sector
- 2019Machinability of natural-fibre-reinforced polymer composites: Conventional vs ultrasonically-assisted machiningcitations
- 2018Cold-sintered temperature stable Na0.5Bi0.5MoO4–Li2MoO4 microwave composite ceramicscitations
- 2017Stress-dependent behavior of artificially structured and reconstituted marine soilscitations
- 2017Molecular Origin of the Selectivity Differences between Palladium and Gold–Palladium in Benzyl Alcohol Oxidation : Different Oxygen Adsorption Propertiescitations
- 2017Temperature dependent, large electromechanical strain in Nd-doped BiFeO3-BaTiO3 lead-free ceramicscitations
- 2016Determination of the spin polarization of RFe2 (R = Dy, Er, Y) by point contact Andreev reflectioncitations
- 2016Hybrid Cutting of Bio-tissuescitations
- 2016Comprehensive analysis of TEM methods for LiFePO 4 /FePO 4 phase mapping: spectroscopic techniques (EFTEM, STEM-EELS) and STEM diffraction techniques (ACOM-TEM)citations
- 2016Switching the in-plane easy axis by ion implantation in rare earth based magnetic films.citations
- 2016Comprehensive analysis of TEM methods for LiFePO4/FePO4 phase mapping: spectroscopic techniques (EFTEM, STEM-EELS) and STEM diffraction techniques (ACOM-TEM)citations
- 2016Proximal magnetometry in thin films using betaNMR.citations
- 2016Ultrasonically Assisted Cutting of Bio-tissues in Microtomycitations
- 2016Machining of frp composite laminates with cd and uad techniques : A comparative and experimental investigation
- 2016Machining of frp composite laminates with cd and uad techniques
- 2015Facet-controlled phase separation in supersaturated Au-Ni nanoparticles upon shape equilibrationcitations
- 2015Nanoscale investigation of the interface situation of plated nickel and thermally formed nickel silicide for silicon solar cell metallizationcitations
- 2015How composition determines the properties of isodimorphic poly(butylene succinate-ran-butylene azelate) random biobased copolymers : from single to double crystalline random copolymers
- 2014Nanoscale Investigation of the Interface Situation of Plated Nickel and Thermally Formed Nickel Silicide for Silicon Solar Cell Metallizationcitations
- 2014Fabrication and characterization of annular-array, high-frequency, ultrasonic transducers based on PZT thick filmcitations
- 2013Effects of ZnO-B₂O₃ addition on the microstructure and microwave properties of low-temperature sintered barium strontium titanate (BST) thick filmscitations
- 2012Atomic Structure and Structural Stability of $Sc_{75}Fe_{25}$ Nanoglasses.citations
- 2010In Situ Formation of Au-Pd Alloyed Nanoparticles during Liquid Phase Oxidation of Alcoholscitations
- 2009Plain bearing stresses due to forming and oil film pressure
- 2006Pd and Pt catalysts modified by alloying with Au in the selective oxidation of alcoholscitations
- 2001Bragg Edge Determination for Accurate Lattice Parameter and Elastic Strain Measurement
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document
Machining of frp composite laminates with cd and uad techniques
Abstract
The enhanced properties and increased application of a natural hemp fibrereinforced polymer (HFRP) composites have emphasized the need for an innovative and a deeper understanding of their machinability in order to further improve their functionality and applicability. Hence, this paper presents a comparative and experimental investigation of the effects of a dry conventional drilling (CD) and hybrid ultrasonically-assisted drilling (UAD) techniques on both hemp fibrereinforced/ polycaprolactone and vinyl ester (HF/PCL and HF/VE) composite samples. The results obtained depict that HF/PCL composite sample of 19 aspect ratio (AR) has a minimum values of peak thrust force of 90N and 75N during UAD and CD respectively, with the lowest machining time of 30seconds for both techniques, among other ARs. These values produced an optimum drilling and best quality drilled holes, in terms of lowest thrust force and resultant drilling-induced damage. It is observed that there was a very little or no thrust force reduction between UAD and CD when drilling the HF/PCL composites. Consequently, PCL was replaced with VE, to produce another sample of HF/VE composites. Therefore, a substantial reduction in drilling forces (thrust force and torque) was obtained during HF/VE drilling, using UAD technique, when compared with the dry CD technique. Comparatively, the percentage of the forces reduction is approximately 70. The quality of the drilled sample depended on these primary forces. In addition, a significant lower ply delamination defect, burr formation, fibre-uncut/pull-out and surface roughness were observed, as well as an improved chip expulsion, hole roundness, material removal rate and surface finish (hole quality) were obtained with UAD, when compared with CD technique. Evidently, a non-traditional hybrid machining technique, UAD, has enhanced machinability (drilling) of HF/VE composite compared with the CD and HF/PCL composite samples.