DSpace Repository :: Browsing by Author "Fuertes Bonel, Juan Pablo"

Browsing by Author "Fuertes Bonel, Juan Pablo"

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Open Access
Análisis y modelización del daño en elementos mecánicos obtenidos a partir de material nanoestructurado
(2017) Fuertes Bonel, Juan Pablo; Luis Pérez, Carmelo; Luri Irigoyen, Rodrigo; Ingeniería Mecánica, Energética y de Materiales; Mekanika, Energetika eta Materialen Ingeniaritza
Open Access
Analysis of fatigue and wear behaviour in ultrafine grained connecting rods
(MDPI, 2017) Luri Irigoyen, Rodrigo; Luis Pérez, Carmelo; León Iriarte, Javier; Fuertes Bonel, Juan Pablo; Salcedo Pérez, Daniel; Puertas Arbizu, Ignacio; Ingeniería Mecánica, Energética y de Materiales; Mekanika, Energetika eta Materialen Ingeniaritza
Over the last few years there has been an increasing interest in the study and development of processes that make it possible to obtain ultra-fine grained materials. Although there exists a large number of published works related to the improvement of the mechanical properties in these materials, there are only a few studies that analyse their in-service behaviour (fatigue and wear). In order to bridge the gap, in this present work, the fatigue and wear results obtained for connecting rods manufactured by using two different aluminium alloys (AA5754 and AA5083) previously deformed by severe plastic deformation (SPD), using Equal Channel Angular Pressing (ECAP), in order to obtain the ultrafine grain size in the processed materials are shown. For both aluminium alloys, two initial states were studied: annealed and ECAPed. The connecting rods were manufactured from the previously processed materials by using isothermal forging. Fatigue and wear experiments were carried out in order to characterize the in-service behaviour of the components. A comparative study of the results was made for both initial states of the materials. Furthermore, Finite Element Modelling (FEM) simulations were used in order to compare experimental results with those obtained from simulations. In addition, dimensional wear coefficients were found for each of the aluminium alloys and initial deformation states. This research work aims to progress the knowledge of the behaviour of components manufactured from ultrafine grain materials.
Open Access
Analysis of tribological properties in disks of AA-5754 and AA-5083 aluminium alloys previously processed by equal channel angular pressing and isothermally forged
(MDPI, 2020) Luis Pérez, Carmelo; Luri Irigoyen, Rodrigo; Puertas Arbizu, Ignacio; Salcedo Pérez, Daniel; León Iriarte, Javier; Fuertes Bonel, Juan Pablo; Ingeniería; Ingeniaritza
In the present study, the wear behaviour of two aluminium alloys (AA‐5754 and AA‐5083) is analysed where these have been previously processed by severe plastic deformation (SPD) with equal channel angular pressing (ECAP). In order to achieve the objectives of this study, several disks made of these alloys are manufactured by isothermal forging from different initial states. The microstructures of the initial materials analysed in this study have different accumulated deformation levels. In order to compare the properties of the nanostructured materials with those which have not been ECAP‐processed, several disks with a height of 6 mm and a diameter of 35 mm are manufactured from both aluminium alloys (that is, AA‐5754 and AA‐5083) isothermally forged at temperatures of 150 and 200 °C, respectively. These thus‐manufactured disks are tested under a load of 0.6 kN, which is equivalent to a stress mean value of 18 MPa, and at a rotational speed of 200 rpm. In order to determine the wear values, the disks are weighed at the beginning, at 10,000 revolutions, at 50,000 revolutions and at 100,000 revolutions, and then the volume‐loss values are calculated. This study was carried out using specific equipment, which may be considered to have a block‐on‐ring configuration, developed for testing in‐service wear behaviour of mechanical components. From this, the wear coefficients for the two materials at different initial states are obtained. In addition, a comparison is made between the behaviour of the previously ECAP-processed aluminium alloys and those that are non‐ECAP‐processed. A methodology is proposed to determine wear coefficients for the aluminium alloys under consideration, which may be used to predict the wear behaviour. It is demonstrated that AA‐5754 and AA‐5083 aluminium alloys improve wear behaviour after the ECAP process compared to that obtained in non‐ECAP‐processed materials.
Open Access
Analysis on the manufacturing of an AA5083 straight blade previously ECAE processed
(Hindawi, 2013) Salcedo Pérez, Daniel; Luis Pérez, Carmelo; Puertas Arbizu, Ignacio; León Iriarte, Javier; Fuertes Bonel, Juan Pablo; Luri Irigoyen, Rodrigo; Ingeniería Mecánica, Energética y de Materiales; Mekanika, Energetika eta Materialen Ingeniaritza
Over these past few years, there have been a large number of technical papers published related to the problem of improving the mechanical properties of materials obtained through severe plastic deformation. Nevertheless, the number of technical papers dealing with improvement in the mechanical properties of mechanical components manufactured from submicrometric grain size material has not been so proficient. Therefore, in this present research work, a straight blade has been manufactured starting from AA-5083 previously processed by ECAE twice (N2) with route C.This material will be manipulated so as to be isothermally forged at different temperature values.This present research work shows the results that are inherent in an improvement in themechanical properties and the microstructure achieved in the thus obtained components, compared with the starting material. In addition, the optimum forging temperature to achieve these components will be determined. As shown in this research work, it is possible to obtain submicrometric grain size mechanical components with a higher mechanical strength than those obtained in nonultrafine grained materials. The originality of this research work lies in the manufacturing of actual mechanical components from ECAE processed material and the analysis of their properties.
Open Access
CES EduPack: una herramienta informática para motivar e inspirar el conocimiento de las aleaciones metálicas en alumnos de Ingeniería
(Dykinson, 2021) Armañanzas Goñi, Javier; Torres Salcedo, Alexia; Fuertes Bonel, Juan Pablo; Rivero Fuente, Pedro J.; Ingeniería; Ingeniaritza
La Ingeniería de los Materiales se puede definir como la rama de la Ciencia que estudia la composición y la estructura de los materiales, así como de la forma en que estos factores se relacionan con sus propiedades o su comportamiento en servicio. Debido a ello, la base de la Ingeniería de los Materiales se basa en establecer una relación directa entre la estructura (bien cristalina o amorfa) y su correspondencia con las propiedades finales de distinta índole tales como físicas, mecánicas, ópticas, químicas o térmicas. Este conocimiento resulta de gran interés por tres motivos principales. El primero es que te permite conocer las características de los materiales y te sirve de ayuda para el estudio de aplicaciones específicas. En segundo lugar, se puede conocer en mayor medida los efectos asociados a los distintos procesos de fabricación y relacionarlos con una microestructura específica. Por último, en tercer lugar, permite a un Ingeniero saber utilizar el material más adecuado en función de las condiciones de servicio en un campo de aplicación determinado.
Open Access
Comparative study of the damage attained with different specimens by FEM
(Elsevier, 2015) Fuertes Bonel, Juan Pablo; Luri Irigoyen, Rodrigo; Luis Pérez, Carmelo; Salcedo Pérez, Daniel; León Iriarte, Javier; Puertas Arbizu, Ignacio; Ingeniería Mecánica, Energética y de Materiales; Mekanika, Energetika eta Materialen Ingeniaritza
This present research work deals with the analysis of the design of different specimen geometries so that by finite volume simulations, the appearance of cracks may be predicted in the case of forging processes. To this end, each of the geometries selected are studied by means of compression tests between plane shape dies in the same conditions (T = 25 ºC). On the one hand, a value for the critical damage value is obtained by applying the Cockroft-Latham’s criterion and on the other hand, a damage distribution along all the specimen volume with the aim of defining a specimen which shows the most likely place for the crack to appear. This crack location may be also determined through visual inspection with the aim of being able to evaluate this experimentally in the near future.
Open Access
Desarrollo y caracterización de recubrimientos superficiales de PCL mediante la técnica de electrospinning
(2021) Mata Ruiz, Álvaro; Fuertes Bonel, Juan Pablo; Rivero Fuente, Pedro J.; Escuela Técnica Superior de Ingeniería Industrial, Informática y de Telecomunicación; Industria, Informatika eta Telekomunikazio Ingeniaritzako Goi Mailako Eskola Teknikoa
En el presente Trabajo de Fin de Grado, se ha realizado una experimentación donde, a través de la técnica de electrospinning y haciendo uso de una disolución polimérica de policaprolactona (PCL) y los disolventes DCM y DMF, se han generado diferentes recubrimientos de fibras sobre dos tipos de sustratos (portas de vidrio BPB017 y acero inoxidable AISI 304) combinando de manera estratégica los parámetros operacionales de entrada (concentración del polímero, voltaje y caudal aplicados, distancia de deposición y aplicación de inhibidores). Una vez finalizado lo cual, haciendo uso de la instrumentación procedente, se han realizado mediciones de distintos parámetros de salida (diámetro de fibra, rugosidad, velocidad de corrosión y mojabilidad), a partir de las cuales, se ha tratado de identificar y caracterizar la influencia de los parámetros de entrada sobre los de salida, y de esta manera, ser capaces de obtener recubrimientos optimizados en función de lo deseado, como superhidrofóbicos o anticorrosivos. Cabe destacar, que se ha seleccionado un polímero con características específicas como naturaleza hidrofóbica intrínseca con el fin de hacer viable el cumplimiento de los objetivos mencionados.
Open Access
Design and experimentation of a hydrokinetic turbine for electricity generation in closed pipes
(World Scientific and Engineering Academy and Society, 2024) Armañanzas Goñi, Javier; Alcalá, Marina; Fuertes Bonel, Juan Pablo; León Iriarte, Javier; Torres Salcedo, Alexia; Gil Liberal, Miguel; Ingeniería; Ingeniaritza
In the present research work, a device for electrical energy generation to be used in water pipelines has been designed, simulated, and tested. To achieve this, a study of the most influential parameters involved in the experiment has been carried out and both, the turbine model and the geometry of the experimental test pipe, have been selected through CFD simulations. Next, the Design of Experiments (DOE) has been used to obtain the configuration with a higher energy extraction from running water. Finally, the turbine and the test pipe section have been manufactured by 3D printing and the experimental tests have been carried out with the optimal configuration to validate the results obtained in the CFD simulations. To simulate the exchange of energy between the water and the turbine, the CFD software SIMULIA XFlow has been used.
Open Access
Design and mechanical properties analysis of AA5083 ultrafine grained cams
(MDPI, 2017) Salcedo Pérez, Daniel; Luis Pérez, Carmelo; Luri Irigoyen, Rodrigo; Puertas Arbizu, Ignacio; León Iriarte, Javier; Fuertes Bonel, Juan Pablo; Ingeniería Mecánica, Energética y de Materiales; Mekanika, Energetika eta Materialen Ingeniaritza
This present research work deals with the development of ultrafine grained cams obtained from previously ECAP (Equal Channel Angular Pressing)-processed material and manufactured by isothermal forging. The design and the manufacturing of the dies required for the isothermal forging of the cams are shown. Optimization techniques based on the combination of design of experiments, finite element and finite volume simulations are employed to develop the dies. A comparison is made between the mechanical properties obtained with the cams manufactured from material with no previous deformation and with those from previously SPD (Severe Plastic Deformation)-processed material. In addition, a comparative study between the experimental results and those obtained from the simulations is carried out. It has been demonstrated that it is possible to obtain ultrafine grained cams with an increase of 10.3% in the microhardness mean value as compared to that obtained from material with no previous deformation.
Open Access
Design and optimization of the dies for the isothermal forging of a cam
(Elsevier, 2015) Salcedo Pérez, Daniel; Luis Pérez, Carmelo; Luri Irigoyen, Rodrigo; León Iriarte, Javier; Puertas Arbizu, Ignacio; Fuertes Bonel, Juan Pablo; Ingeniería Mecánica, Energética y de Materiales; Mekanika, Energetika eta Materialen Ingeniaritza
In the present study, the design of the dies required for the isothermal forging of a cam is analysed by finite volume method. Specifically, cams are of great importance in automotive industry, where a lower weight and an improvement in the lubrication or in the materials to be in contact lead to a significant reduction in the fuel cost. The flow stress curves of one Al-Mg alloy were firstly determined by using compression tests. Once these flow stress curves were obtained, FV simulation was employed. In the forging process, the optimum die configuration has been selected. To this end, several aspects have been taken into account such as the force required for the forging, the correct die filling, the introduced plastic strain and the damage imparted to the billet.
Open Access
Design, optimization, and mechanical property analysis of a submicrometric aluminium alloy connecting rod
(Hindawi, 2015) Fuertes Bonel, Juan Pablo; León Iriarte, Javier; Luis Pérez, Carmelo; Salcedo Pérez, Daniel; Puertas Arbizu, Ignacio; Luri Irigoyen, Rodrigo; Ingeniería Mecánica, Energética y de Materiales; Mekanika, Energetika eta Materialen Ingeniaritza
Ultrafine grained materials have a great deal of both scientific and technological interest because they allow outstanding properties to be obtained. An improvement in the mechanical strength and in the ductility and a better fatigue behaviour are properties to be expected with these materials. However, in spite of the great number of scientific publications that deals with the mechanical property improvement, the number of practical applications of these materials is scant. In this present research work, equal channel angular pressing (ECAP) is used as a severe plastic deformation process (SPD) to obtain billets which are subsequently isothermally forged to obtain a connecting rod with submicrometric grain size. The optimization of the design process is shown as well as the die design. The objective variables to be fulfilled are the correct filling of the die and the required force to obtain the part. Moreover, a comparison is also included between the mechanical properties thus obtained and those obtained with traditional methods. Moreover, optical and SEM micrographs are also included in this research work.
Open Access
Design, simulation and manufacturing of a connecting rod from ultra-fine grained material and isothermal forging
(Elsevier, 2016) Fuertes Bonel, Juan Pablo; Luis Pérez, Carmelo; Luri Irigoyen, Rodrigo; Salcedo Pérez, Daniel; León Iriarte, Javier; Puertas Arbizu, Ignacio; Ingeniería Mecánica, Energética y de Materiales; Mekanika, Energetika eta Materialen Ingeniaritza
In this research work, a study on the mechanical properties of isothermal forging for connecting rods is made from previously ECAP (Equal Channel Angular Pressing)-processed AA1050 and AA5083 aluminium alloys. This severe plastic deformation (SPD) process is used in order to achieve a starting material with a submicrometric structure, thus improving the mechanical properties of the part. In this study, the design and the experimentation process is shown, where this involves the design stage by finite element simulations, the experimental tests and the use of metallographic techniques for the required properties to be analysed. Itis observed thatthere is an improvementin the mechanical properties when the starting material is ECAP-processed before carrying out the isothermal forging. This improvement consists in an increase of 20% in the hardness of the final connecting rod which also possesses a microstructure grain size of 500 nm. To come to these conclusions,the results obtained with the connecting rods manufactured by isothermal forging from previously ECAP-processed material are compared with those conventionally manufactured. Therefore,the feasibility and the advantages ofthe industrialmanufacturing ofmechanical components by isothermal forging from ECAP-processed material are demonstrated here as mechanical properties are achieved, as well as a better flow of the material and at a lower forging temperature. In the existing bibliography, there are no research works dealing with the manufacturing of connecting rods from ultra-fine grained material and that is the reason why this present study is considered to be of scientific and technological interest, and therefore, it may be considered to be at the frontline of current knowledge.
Open Access
Design, simulation, construction and testing of a Formula One rear wing with Drag Reduction System (DRS).
(2023) Urdiroz Zoco, Jon; Benito Amurrio, Marta; Fuertes Bonel, Juan Pablo; Escuela Técnica Superior de Ingeniería Industrial, Informática y de Telecomunicación; Industria, Informatika eta Telekomunikazio Ingeniaritzako Goi Mailako Eskola Teknikoa
El presente Trabajo Fin de Grado (TFG) consiste en el diseño, fabricación, simulación y validación de un alerón trasero con sistema de reducción de drag (DRS) específico de la competición de Fórmula 1. En este trabajo se aplican distintos conceptos relacionados con el diseño, fabricación, simulación, ingeniería de fluidos y aerodinámica. En la primera parte del trabajo se realizará un diseño tomando como referencia la normativa oficial de la Formula 1 publicada para 2022. Dicho diseño se realizó utilizando la herramienta SOLIDWORKS que nos permite hacer un ensamblaje completo y también adaptar dicho diseño para su impresión utilizando tecnología de impresión 3D con fibra de carbono y resina. En la segunda parte del trabajo se evalúa el rendimiento del alerón, para ello se llevaron a cabo simulaciones en 2D utilizando el software XFlow. Estas simulaciones se realizaron tanto con el DRS cerrado como con el DRS abierto y servirán para posteriormente poder simular el alerón de forma eficiente en una simulación 3D, ya que realizar una simulación consume mucho tiempo de cálculo para un ordenador. Esto se hizo tras un estudio de convergencia de las simulaciones 2D obtenidas. Por último, para validar los resultados de las simulaciones, se usaron los modelos fabricados en las impresoras 3D para realizar pruebas en un túnel de viento. Estas pruebas permitieron validar el diseño y sirvieron para poder comparar con los resultados obtenidos en las simulaciones 2D y 3D.
Open Access
Designing multifunctional protective PVC electrospun fibers with tunable properties
(MDPI, 2020) Rivero Fuente, Pedro J.; Rosagaray Burdaspar, Iker; Fuertes Bonel, Juan Pablo; Rodríguez Trías, Rafael; Ingeniaritza; Institute for Advanced Materials and Mathematics - INAMAT2; Ingeniería; Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, PJUPNA1929
In this work, the electrospinning technique is used for the fabrication of electrospun functional fibers with desired properties in order to show a superhydrophobic behavior. With the aim to obtain a coating with the best properties, a design of experiments (DoE) has been performed by controlling several inputs operating parameters, such as applied voltage, flow rate, and precursor polymeric concentration. In this work, the reference substrate to be coated is the aluminum alloy (60661T6), whereas the polymeric precursor is the polyvinyl chloride (PVC) which presents an intrinsic hydrophobic nature. Finally, in order to evaluate the coating morphology for the better performance, the following parameters-such as fiber diameter, surface roughness (Ra, Rq), optical properties, corrosion behavior, and wettability-have been deeply analyzed. To sum up, this is the first time that DoE has been used for the optimization of superhydrophobic or anticorrosive surfaces by using PVC precursor for the prediction of an adequate surface morphology as a function of the input operational parameters derived from electrospinning process with the aim to validate better performance.
Open Access
Determinación del rozamiento frente a presión y temperatura en una compresión entre plataformas plano paralelas para una AA5083
(2017) Vigara Gabay, Miguel; León Iriarte, Javier; Fuertes Bonel, Juan Pablo; Escuela Técnica Superior de Ingenieros Industriales y de Telecomunicación; Telekomunikazio eta Industria Ingeniarien Goi Mailako Eskola Teknikoa
El objetivo de este Trabajo de Fin de Grado (TFG) consiste en encontrar una función para el rozamiento frente a la presión para una aleación de aluminio, a distintas temperaturas, con el fin de evitar los errores que supone tomar rozamiento constante en las simulaciones con elementos finitos, y por lo tanto, obtener un mejor ajuste en la simulación con el caso real. El proceso estudiado trata de una compresión entre plataformas planoparalelas donde la aleación de aluminio empleada es la AA5083. Para ello, se parte de ensayos experimentales, a partir de los cuales se va a obtener la curva de tensión-deformación del material para cada temperatura de compresión, a través de un filtrado con Matlab. A continuación, se llevarán a cabo diversas simulaciones mediante elementos finitos con el software Marc MentatTM
Open Access
Estudio aerodinámico del PAA como recubrimiento obtenido mediante Layerby-Layer y electrospinning
(2024) Díaz Palacio, María Begoña; Fuertes Bonel, Juan Pablo; Rivero Fuente, Pedro J.; Escuela Técnica Superior de Ingeniería Industrial, Informática y de Telecomunicación; Industria, Informatika eta Telekomunikazio Ingeniaritzako Goi Mailako Eskola Teknikoa
El nexo entre dos áreas dentro del mundo de la ingeniería, eso es lo que se ha conseguido en este estudio. Se unen la Ingeniería de Ciencia de Materiales y la Ingeniería de Fluidos para el desarrollo de un recubrimiento que presente un alto grado de funcionalidad sobre una superficie para conseguir un buen carácter aerodinámico. Se plantea un estudio en el que se compara una superficie sin recubrir con otra superficie recubierta. Se analizan dos técnicas de recubrimiento distintas, Layer-byLayer Assembly (Layer-by-Layer) y electrospinning, y posteriormente se escoge la técnica más óptima para recubrir el perfil NACA. El objetivo principal es optimizar la aerodinámica del recubrimiento lo máximo posible para dotar a la superficie de una mojabilidad y adherencia adecuadas, rugosidad y espesores buenos para aportar mayor resistencia a distintas fuerzas.
Embargo
Estudio comparativo de fibras tipo Blend por la técnica de Electrospinning
(2020) Rosagaray Burdaspar, Iker; Fuertes Bonel, Juan Pablo; Rivero Fuente, Pedro J.; Escuela Técnica Superior de Ingeniería Industrial, Informática y de Telecomunicación; Industria, Informatika eta Telekomunikazio Ingeniaritzako Goi Mailako Eskola Teknikoa
En este Trabajo Fin de Máster (TFM), se ha realizado un estudio comparativo de un Blend de fibras poliméricas de naturaleza hidrofóbica (PVC, PS) mediante el empleo de diferentes configuraciones experimentales del equipo de Electrospinning. Con el objetivo de obtener fibras poliméricas con la mayor rugosidad superficial posible y un diámetro de tamaño nanométrico gracias al uso de técnicas avanzadas de morfología superficial (SEM y AFM), se ha realizado un estudio inicial para la optimización de los parámetros operacionales que influyen en las propiedades de las muestras obtenidas (voltaje aplicado, caudal, distancia aguja-colector, viscosidad y concentración). Finalmente, se ha evaluado el efecto de la morfología (disposición aleatoria, fibras alineadas y fibras tipo core-shell) en el grado de mojabilidad y la resistencia a la corrosión de las diferentes muestras.
Open Access
Estudio, diseño y análisis de una turbina hidrocinética gorlov
(2022) Echeverría Beriain, Andrés; Fuertes Bonel, Juan Pablo; León Iriarte, Javier; Escuela Técnica Superior de Ingeniería Industrial, Informática y de Telecomunicación; Industria, Informatika eta Telekomunikazio Ingeniaritzako Goi Mailako Eskola Teknikoa
En este Trabajo Fin de Grado (TFG) se analiza un modelo de turbina hidrocinética de eje vertical denominado Gorlov. Para llevar a cabo el diseño se emplean los softwares Matlab y SolidWorks y para simular el comportamiento en servicio, se emplea el software de CFD X-Flow. El principal objetivo es analizar el comportamiento de la turbina en funcionamiento en un canal de riego y buscar la mejora del modelo, hasta conseguir uno que genere par suficiente para obtener energía, teniendo en cuenta varios parámetros de diseño, tales como el perfil de los álabes, para los cuales se ha seleccionado el perfil NACA 4415.
Open Access
Experimental and FEM analysis of wear behaviour in AA5083 ultrafine-grained cams
(MDPI, 2020) Luis Pérez, Carmelo; Luri Irigoyen, Rodrigo; Fuertes Bonel, Juan Pablo; León Iriarte, Javier; Salcedo Pérez, Daniel; Puertas Arbizu, Ignacio; Ingeniería; Ingeniaritza
Severe plastic deformation (SPD) processes have attracted a great deal of both scientific and technological interest over the last few years as a consequence of the improvements that are possible to obtain in the microstructure and mechanical properties of the materials manufactured through the use of these kind of processes. However, the practical applications of such materials to obtain mechanical components are significantly fewer. As a direct consequence, the same thing has been observed in the development of studies that show the in-service behaviour of the mechanical components developed in this way. Since one of the industrial objectives of these SPD processes is to obtain functional parts, it is necessary to carry out studies to fill this gap. Therefore, in this study, an analysis of the wear that cams undergo when manufactured from an AA5083 aluminium-magnesium alloy is carried out. The cams were isothermally-forged from materials with and without previous SPD processing by equal channel angular pressing (ECAP). Subsequently, the wear behaviour of these cams was analysed by using specific equipment, which may have been considered to have a block-on-ring configuration, developed for testing in-service wear behaviour of mechanical parts. From this comparative wear study with cams, it is shown that previously-processed materials by ECAP have a better wear performance. Moreover, finite element modelling (FEM) simulations were also included to predict wear in the cams processed in this way. A good agreement between FEM and experimental results was obtained. It is this aspect of performing the wear tests on functional and real mechanical components, and not on laboratory samples, which makes this present research work novel.
Open Access
Experimental measurement of the thermal conductivity of fused deposition modeling materials with a DTC-25 conductivity meter
(MDPI, 2023) Rodríguez García, Antonio; Fuertes Bonel, Juan Pablo; Oval Trujillo, Añaterve; Pérez Artieda, Miren Gurutze; Ingeniería; Ingeniaritza
The expansion and low cost of additive manufacturing technologies have led to a revolution in the development of materials used by these technologies. There are several varieties of materials that can be used in additive manufacturing by fused deposition modeling (FDM). However, some of the properties of these materials are unknown or confusing. This article addresses the need to know the thermal conductivity in different filaments that this FDM technology uses, because there are multiple applications for these additive manufacturing products in the field of thermal insulation. For the study of thermal conductivity, the DTC-25 commercial conductivity measurement bench was used, where the tests were carried out on a set of seven different materials with 100% fabrication density—from base materials such as acrylonitrile butadiene styrene (ABS) or polylactic acid (PLA), to materials with high mechanical and thermal resistance such as thermoplastic polyurethane (TPU), polyether ether ketone (PEEK), and high-performance polyetherimide thermoplastic (ULTEM), to materials with metal inclusions (aluminum 6061) that would later be subjected to thermal after-treatments. This study shows how the parts manufactured with aluminum inclusions have a higher thermal conductivity, at 0.40 ± 0.05 W/m·K, compared to other materials with high mechanical and thermal resistance, such as TPU, with a conductivity of 0.26 ± 0.05 W/m·K.

Browsing by Author "Fuertes Bonel, Juan Pablo"

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