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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.
Carmelo J. Luis Pérez; Rodrigo Luri Irigoyen; Ignacio Puertas Arbizu; Daniel Salcedo Pérez; Javier León Iriarte; Juan P. Fuertes Bonel. Analysis of Tribological Properties in Disks of AA-5754 and AA-5083 Aluminium Alloys Previously Processed by Equal Channel Angular Pressing and Isothermally Forged. Metals 2020, 10, 938 .
AMA StyleCarmelo J. Luis Pérez, Rodrigo Luri Irigoyen, Ignacio Puertas Arbizu, Daniel Salcedo Pérez, Javier León Iriarte, Juan P. Fuertes Bonel. Analysis of Tribological Properties in Disks of AA-5754 and AA-5083 Aluminium Alloys Previously Processed by Equal Channel Angular Pressing and Isothermally Forged. Metals. 2020; 10 (7):938.
Chicago/Turabian StyleCarmelo J. Luis Pérez; Rodrigo Luri Irigoyen; Ignacio Puertas Arbizu; Daniel Salcedo Pérez; Javier León Iriarte; Juan P. Fuertes Bonel. 2020. "Analysis of Tribological Properties in Disks of AA-5754 and AA-5083 Aluminium Alloys Previously Processed by Equal Channel Angular Pressing and Isothermally Forged." Metals 10, no. 7: 938.
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.
C. J. Luis Pérez; R. Luri Irigoyen; J. P. Fuertes Bonel; J. León Iriarte; D. Salcedo Pérez; I. Puertas Arbizu. Experimental and FEM Analysis of Wear Behaviour in AA5083 Ultrafine-Grained Cams. Metals 2020, 10, 479 .
AMA StyleC. J. Luis Pérez, R. Luri Irigoyen, J. P. Fuertes Bonel, J. León Iriarte, D. Salcedo Pérez, I. Puertas Arbizu. Experimental and FEM Analysis of Wear Behaviour in AA5083 Ultrafine-Grained Cams. Metals. 2020; 10 (4):479.
Chicago/Turabian StyleC. J. Luis Pérez; R. Luri Irigoyen; J. P. Fuertes Bonel; J. León Iriarte; D. Salcedo Pérez; I. Puertas Arbizu. 2020. "Experimental and FEM Analysis of Wear Behaviour in AA5083 Ultrafine-Grained Cams." Metals 10, no. 4: 479.
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.
Rodrigo Luri; Carmelo J. Luis; Javier León; Juan P. Fuertes; Daniel Salcedo; Ignacio Puertas. Analysis of Fatigue and Wear Behaviour in Ultrafine Grained Connecting Rods. Metals 2017, 7, 289 .
AMA StyleRodrigo Luri, Carmelo J. Luis, Javier León, Juan P. Fuertes, Daniel Salcedo, Ignacio Puertas. Analysis of Fatigue and Wear Behaviour in Ultrafine Grained Connecting Rods. Metals. 2017; 7 (8):289.
Chicago/Turabian StyleRodrigo Luri; Carmelo J. Luis; Javier León; Juan P. Fuertes; Daniel Salcedo; Ignacio Puertas. 2017. "Analysis of Fatigue and Wear Behaviour in Ultrafine Grained Connecting Rods." Metals 7, no. 8: 289.
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.
Daniel Salcedo; Carmelo J. Luis; Rodrigo Luri; Ignacio Puertas; Javier León; Juan P. Fuertes. Design and Mechanical Properties Analysis of AA5083 Ultrafine Grained Cams. Metals 2017, 7, 116 .
AMA StyleDaniel Salcedo, Carmelo J. Luis, Rodrigo Luri, Ignacio Puertas, Javier León, Juan P. Fuertes. Design and Mechanical Properties Analysis of AA5083 Ultrafine Grained Cams. Metals. 2017; 7 (4):116.
Chicago/Turabian StyleDaniel Salcedo; Carmelo J. Luis; Rodrigo Luri; Ignacio Puertas; Javier León; Juan P. Fuertes. 2017. "Design and Mechanical Properties Analysis of AA5083 Ultrafine Grained Cams." Metals 7, no. 4: 116.
The most important difficulties when the behaviour of a part that is subjected to external mechanical forces is simulated deal with the determination of both the material thermo-mechanical properties and its boundary conditions. The accuracy of the results obtained from the simulation is directly related to the knowledge of the flow stress curve. Therefore, the determination of a material flow rule which is valid for both a wide temperature range and different initial deformation conditions in the starting material presents a great deal of interest when simulation results close to the experimental values are required to be obtained. In this present study, a novel flow stress curve is proposed that is able to accurately predict the behaviour of both materials with no previous accumulated strain and materials that have been previously subjected to severe plastic deformation processes. Moreover, it is possible to use it both for hot and cold working. The results are analysed in a wide test temperature range, which varies from room temperature to 300 °C, and from material previously processed by angular channel extrusion or with no previous strain accumulated. It is shown that the flow rule proposed is effective to model the material behaviour in a wide temperature range and it makes it possible to take the recrystallization phenomena that appear in previously deformed materials into account. In addition, the results obtained are compared with those predicted by other flow rules that exist in the prior literature. Furthermore, the study is complemented with finite element simulations and with a comparison between simulation and experimental results.
Javier León; Carmelo J. Luis; Juan P. Fuertes; Ignacio Puertas; Rodrigo Luri; Daniel Salcedo. A Proposal of a Constitutive Description for Aluminium Alloys in Both Cold and Hot Working. Metals 2016, 6, 244 .
AMA StyleJavier León, Carmelo J. Luis, Juan P. Fuertes, Ignacio Puertas, Rodrigo Luri, Daniel Salcedo. A Proposal of a Constitutive Description for Aluminium Alloys in Both Cold and Hot Working. Metals. 2016; 6 (10):244.
Chicago/Turabian StyleJavier León; Carmelo J. Luis; Juan P. Fuertes; Ignacio Puertas; Rodrigo Luri; Daniel Salcedo. 2016. "A Proposal of a Constitutive Description for Aluminium Alloys in Both Cold and Hot Working." Metals 6, no. 10: 244.
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.
J. P. Fuertes; J. León; C. J. Luis; D. Salcedo; I. Puertas; R. Luri. Design, Optimization, and Mechanical Property Analysis of a Submicrometric Aluminium Alloy Connecting Rod. Journal of Nanomaterials 2015, 2015, 1 -15.
AMA StyleJ. P. Fuertes, J. León, C. J. Luis, D. Salcedo, I. Puertas, R. Luri. Design, Optimization, and Mechanical Property Analysis of a Submicrometric Aluminium Alloy Connecting Rod. Journal of Nanomaterials. 2015; 2015 ():1-15.
Chicago/Turabian StyleJ. P. Fuertes; J. León; C. J. Luis; D. Salcedo; I. Puertas; R. Luri. 2015. "Design, Optimization, and Mechanical Property Analysis of a Submicrometric Aluminium Alloy Connecting Rod." Journal of Nanomaterials 2015, no. : 1-15.
Over these last few years, there has been a growing interest in developing mechanical components from submicrometric materials due to the significant improvement that these materials present compared to their original state. This present research work deals with the study of the mechanical properties of a connecting rod isothermally forged from different starting materials. These materials are as follows: annealed aluminum alloy (AA) 5754, the same alloy previously deformed through equal channel angular pressing (ECAP) and a third case where the previously ECAP-processed material is subjected to a recovery heat treatment. A comparison is made between finite volume (FV) simulations and experimental tests with respect to hardness, plastic strain and forging force. Furthermore, the improvement in the mechanical properties of the connecting rod forged from predeformed material is evaluated in comparison to the connecting rod forged with annealed material. The microstructure of both cases is also compared at the end of the manufacturing process.
Javier León; Daniel Salcedo; Óscar Murillo; Carmelo J. Luis; Juan P. Fuertes; Ignacio Puertas; Rodrigo Luri. Mechanical Properties Analysis of an Al-Mg Alloy Connecting Rod with Submicrometric Structure. Metals 2015, 5, 1397 -1413.
AMA StyleJavier León, Daniel Salcedo, Óscar Murillo, Carmelo J. Luis, Juan P. Fuertes, Ignacio Puertas, Rodrigo Luri. Mechanical Properties Analysis of an Al-Mg Alloy Connecting Rod with Submicrometric Structure. Metals. 2015; 5 (3):1397-1413.
Chicago/Turabian StyleJavier León; Daniel Salcedo; Óscar Murillo; Carmelo J. Luis; Juan P. Fuertes; Ignacio Puertas; Rodrigo Luri. 2015. "Mechanical Properties Analysis of an Al-Mg Alloy Connecting Rod with Submicrometric Structure." Metals 5, no. 3: 1397-1413.
In spite of the fact that SPD processes considerably improve the mechanical properties of the thus processed materials, in a large number of cases, it is necessary the subsequent employment of a traditional manufacturing process, such as a forging process, in order to obtain the final shape of a specific part. Thus, in general, it is necessary to use a thermal treatment for the material before it is forged. In this research work, the measurement of the mechanical properties of an isothermally forged connecting rod is to carried out. The results obtained for an AA5754 aluminium alloy are to be compared in the case of two different starting states: after an annealing heat treatment and after having been previously ECAP deformed. It is observed an increase of 21% in the HV microhardness in relation to that attained in the connecting rod forged from the material without previous ECAP deformation.
J.P. Fuertes; O. Murillo; J. Leon; C. Luís; D. Salcedo; I. Puertas; R. Luri. Mechanical Properties Analysis of an Al-Mg Alloy Connecting Rod with Submicrometric Structure. Procedia Engineering 2015, 132, 313 -318.
AMA StyleJ.P. Fuertes, O. Murillo, J. Leon, C. Luís, D. Salcedo, I. Puertas, R. Luri. Mechanical Properties Analysis of an Al-Mg Alloy Connecting Rod with Submicrometric Structure. Procedia Engineering. 2015; 132 ():313-318.
Chicago/Turabian StyleJ.P. Fuertes; O. Murillo; J. Leon; C. Luís; D. Salcedo; I. Puertas; R. Luri. 2015. "Mechanical Properties Analysis of an Al-Mg Alloy Connecting Rod with Submicrometric Structure." Procedia Engineering 132, no. : 313-318.
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 °C). 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.
J.P. Fuertes; R. Luri; C.J. Luis; D. Salcedo; J. Leon; I. Puertas. Comparative Study of the Damage Attained with Different Specimens by FEM. Procedia Engineering 2015, 132, 319 -325.
AMA StyleJ.P. Fuertes, R. Luri, C.J. Luis, D. Salcedo, J. Leon, I. Puertas. Comparative Study of the Damage Attained with Different Specimens by FEM. Procedia Engineering. 2015; 132 ():319-325.
Chicago/Turabian StyleJ.P. Fuertes; R. Luri; C.J. Luis; D. Salcedo; J. Leon; I. Puertas. 2015. "Comparative Study of the Damage Attained with Different Specimens by FEM." Procedia Engineering 132, no. : 319-325.
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.
D. Salcedo; C.J. Luis; R. Luri; J. Leon; I. Puertas; J.P. Fuertes. Design and Optimization of the Dies for the Isothermal Forging of a Cam. Procedia Engineering 2015, 132, 1069 -1076.
AMA StyleD. Salcedo, C.J. Luis, R. Luri, J. Leon, I. Puertas, J.P. Fuertes. Design and Optimization of the Dies for the Isothermal Forging of a Cam. Procedia Engineering. 2015; 132 ():1069-1076.
Chicago/Turabian StyleD. Salcedo; C.J. Luis; R. Luri; J. Leon; I. Puertas; J.P. Fuertes. 2015. "Design and Optimization of the Dies for the Isothermal Forging of a Cam." Procedia Engineering 132, no. : 1069-1076.
In the last years, new severe plastic deformation (SPD) processes have been developed in order to produce very high values of deformation in the materials to be processed, with only small changes in the size of parts. This is not possible through conventional thermo-mechanical processes, in which the increase up to the above-mentioned values of deformation is usually associated with a change in their geometry. As is well-known, with enough accumulation of plastic deformation, a new submicrometric or even nanometric grain structure substitutes the former. Given that the grain size in metallic materials has a great deal of influence on their mechanical properties, the refinement of this grain size provides enormous technological advantages. For instance, at low values of temperature, a fine grain size can increase mechanical strength, hardness, fracture toughness and the material fatigue limit. Furthermore, at high values of temperature, the alloys with an ultrafine grain size may exhibit a superplastic behaviour and thus, the ability to undergo very high values of deformation with no damage to the material. The continuous combined drawing process in angular channels (CCDR) is a new concept of severe plastic deformation process (SPD), developed by researchers belonging to the Public University of Navarre and based on the patent (ES 2224787). In the present work, finite element analysis will be employed in order to study not only the strain distribution in the processed materials but also the homogeneity of the introduced strain. Moreover, experimental results will be compared to that obtained by using FEM. With the present work, it will be shown that it is feasible to achieve a process with possible industrial application, making the continuous processing of metallic materials in angular channels by SPD possible.
C. J. Luis; D. Salcedo; R. Luri; J. León; I. Puertas. FEM Modelling of the Continuous Combined Drawing and Rolling Process for Severe Plastic Deformation of Metallic Materials. Advanced Structured Materials 2014, 17 -45.
AMA StyleC. J. Luis, D. Salcedo, R. Luri, J. León, I. Puertas. FEM Modelling of the Continuous Combined Drawing and Rolling Process for Severe Plastic Deformation of Metallic Materials. Advanced Structured Materials. 2014; ():17-45.
Chicago/Turabian StyleC. J. Luis; D. Salcedo; R. Luri; J. León; I. Puertas. 2014. "FEM Modelling of the Continuous Combined Drawing and Rolling Process for Severe Plastic Deformation of Metallic Materials." Advanced Structured Materials , no. : 17-45.
This work presents a study related to the achievement of a nanometric structure in AA3103, employing severe plastic deformation processes (SPD), in this case equal channel angular pressing (ECAP). The changes in the mechanical properties and in the microstructure of AA3103 were studied after being processed by ECAP. Subsequently, scanning electron microscopy was used to determine the evolution of the microstructure after different thermal treatments on the material processed by this severe plastic deformation process. Furthermore, a more profound knowledge of the changes in the mechanical properties of this aluminium alloy was obtained. It was demonstrated that with different appropriate combinations of thermal treatments and ECAP processing, it is possible to significantly improve the mechanical properties through obtaining submicrometric grain size structures.
C. J. Luis; R. Luri; J. León; I. Puertas; D. Salcedo; I. Pérez. Development of Nanostructured AA3103 by Equal Channel Angular Pressing and Thermal Treatments. Journal of Nanomaterials 2014, 2014, 1 -8.
AMA StyleC. J. Luis, R. Luri, J. León, I. Puertas, D. Salcedo, I. Pérez. Development of Nanostructured AA3103 by Equal Channel Angular Pressing and Thermal Treatments. Journal of Nanomaterials. 2014; 2014 (2):1-8.
Chicago/Turabian StyleC. J. Luis; R. Luri; J. León; I. Puertas; D. Salcedo; I. Pérez. 2014. "Development of Nanostructured AA3103 by Equal Channel Angular Pressing and Thermal Treatments." Journal of Nanomaterials 2014, no. 2: 1-8.
Daniel Salcedo; Carmelo J. Luis; Ignacio Puertas; Javier León; Rodrigo Luri; Juan Pablo Fuertes. FEM Modelling and Experimental Analysis of an AA5083 Turbine Blade from ECAP Processed Material. Materials and Manufacturing Processes 2014, 29, 434 -441.
AMA StyleDaniel Salcedo, Carmelo J. Luis, Ignacio Puertas, Javier León, Rodrigo Luri, Juan Pablo Fuertes. FEM Modelling and Experimental Analysis of an AA5083 Turbine Blade from ECAP Processed Material. Materials and Manufacturing Processes. 2014; 29 (4):434-441.
Chicago/Turabian StyleDaniel Salcedo; Carmelo J. Luis; Ignacio Puertas; Javier León; Rodrigo Luri; Juan Pablo Fuertes. 2014. "FEM Modelling and Experimental Analysis of an AA5083 Turbine Blade from ECAP Processed Material." Materials and Manufacturing Processes 29, no. 4: 434-441.
This present work deals with the design of a set of dies employed to manufacture a connecting rod by forging a billet of nanostructured aluminum alloy. Nanostructured parts exhibit excellent mechanical properties compared to the non- nanostructured alloys. Moreover, the forgeability of nanostructured materials is higher and hence, fewer strokes are necessary. In this paper, two set of dies are designed to perform a two stroke forging process and to obtain the desired nanostructured part. The first step to manufacture nanostructured parts is to employ a Severe Plastic Deformation Process (SPD) to produce the nanostructured material. So, the SPD material is forged, generally by isothermal forging to produce the part. The flow behavior of a 5083 Aluminum Alloy (5083-AA) after the SPD process has been determined by experimental tests. Finite Element (FE) and Finite Volume (FV) simulations have been run by using nanostructured 5083-AA flow rule, in order to design the dies.
R. Luri; C.J. Luis; D. Salcedo; J.P. Fuertes; I. Puertas; J. Léon. FEM Analysis of the Isothermal Forging of a Connecting Rod from Material Previously Deformed by ECAE. Procedia Engineering 2013, 63, 540 -546.
AMA StyleR. Luri, C.J. Luis, D. Salcedo, J.P. Fuertes, I. Puertas, J. Léon. FEM Analysis of the Isothermal Forging of a Connecting Rod from Material Previously Deformed by ECAE. Procedia Engineering. 2013; 63 ():540-546.
Chicago/Turabian StyleR. Luri; C.J. Luis; D. Salcedo; J.P. Fuertes; I. Puertas; J. Léon. 2013. "FEM Analysis of the Isothermal Forging of a Connecting Rod from Material Previously Deformed by ECAE." Procedia Engineering 63, no. : 540-546.
Incremental Sheet Forming (ISF) process may be classified within the field of sheet metal forming processes, more specifically in the asymmetric incremental deformation process. Some studies have been carried out on the influence of different parameters in the process. However, there are few publications that evaluate the influence of these parameters using design of experiments by finite element modelling. This study provides a better understanding of the process, which will enable an optimization of the ISF process and its comparison with other metal forming processes. Furthermore, this study will be the basis for determining the development of the equipment necessary to carry it out.
J. Léon; D. Salcedo; C. Ciaurriz; C.J. Luis; J.P. Fuertes; I. Puertas; R. Luri. Analysis of the Influence of Geometrical Parameters on the Mechanical Properties of Incremental Sheet Forming Parts. Procedia Engineering 2013, 63, 445 -453.
AMA StyleJ. Léon, D. Salcedo, C. Ciaurriz, C.J. Luis, J.P. Fuertes, I. Puertas, R. Luri. Analysis of the Influence of Geometrical Parameters on the Mechanical Properties of Incremental Sheet Forming Parts. Procedia Engineering. 2013; 63 ():445-453.
Chicago/Turabian StyleJ. Léon; D. Salcedo; C. Ciaurriz; C.J. Luis; J.P. Fuertes; I. Puertas; R. Luri. 2013. "Analysis of the Influence of Geometrical Parameters on the Mechanical Properties of Incremental Sheet Forming Parts." Procedia Engineering 63, no. : 445-453.
In this research work, a comparative study between the precision obtained with a touch probe (TP-200) and that obtained with a scanning probe (SP-25) is carried out for a specific coordinate measuring machine (CMM). These two types of probes cover the most commonly used contact probes in CMMs, where touch probes work by making contacts with the part and scanning probes maintain the contact with the part as they scan along its surface. In order to do this, one part was manufactured by machining and a series of measurements were taken over it at distinct locations in the CMM working volume. This part consists of parallel planes with different height values (70 mm, 45 mm, 25 mm and 10 mm) from the horizontal plane located on the granite table. The above-mentioned part was measured at five different locations distributed along the working volume and the measurements were repeated three times, where all of them were taken at a temperature of 20 °C ± 1 °C. Moreover, not only the CMM uncertainty is taken into account but also the variability associated with the manufactured part along with the measuring process of it.
I. Puertas; C.J. Luis Pérez; D. Salcedo; J. León; R. Luri; J.P. Fuertes. Precision Study of a Coordinate Measuring Machine Using Several Contact Probes. Procedia Engineering 2013, 63, 547 -555.
AMA StyleI. Puertas, C.J. Luis Pérez, D. Salcedo, J. León, R. Luri, J.P. Fuertes. Precision Study of a Coordinate Measuring Machine Using Several Contact Probes. Procedia Engineering. 2013; 63 ():547-555.
Chicago/Turabian StyleI. Puertas; C.J. Luis Pérez; D. Salcedo; J. León; R. Luri; J.P. Fuertes. 2013. "Precision Study of a Coordinate Measuring Machine Using Several Contact Probes." Procedia Engineering 63, no. : 547-555.
I. Puertas; C.J. Luis Pérez; D. Salcedo; J. León; J.P. Fuertes; R. Luri. Design and mechanical property analysis of AA1050 turbine blades manufactured by equal channel angular extrusion and isothermal forging. Materials & Design 2013, 52, 774 -784.
AMA StyleI. Puertas, C.J. Luis Pérez, D. Salcedo, J. León, J.P. Fuertes, R. Luri. Design and mechanical property analysis of AA1050 turbine blades manufactured by equal channel angular extrusion and isothermal forging. Materials & Design. 2013; 52 ():774-784.
Chicago/Turabian StyleI. Puertas; C.J. Luis Pérez; D. Salcedo; J. León; J.P. Fuertes; R. Luri. 2013. "Design and mechanical property analysis of AA1050 turbine blades manufactured by equal channel angular extrusion and isothermal forging." Materials & Design 52, no. : 774-784.
This research work deals with the manufacturing of blades for a Francis turbine with a submicrometric structure through the isothermal forging of a heat-treatable aluminum alloy that has been previously processed by angular channel extrusion. In addition, mechanical properties and microstructure of these same blades are analyzed. A comparative study is also carried out between the properties obtained in the forged blades from the alloy previously deformed through angular channel extrusion and those obtained by employing two other isothermal forging processes of this alloy which mean utilizing different process stages. Moreover, a modeling by finite element about the isothermal forging process of the blades is performed using flow rules obtained from compression tests on these alloys at different temperatures. In this way, a much higher degree of accuracy is achieved in the results compared with that obtained through traditional approaches. With this present study, it is intended to make some progress in the development of nanostructured mechanical components with the aim of demonstrating the feasibility of their manufacturing and achieving an improvement in their mechanical properties.
D. Salcedo; C. J. Luis; J. Leon; I. Puertas; J. P. Fuertes; R. Luri. Manufacturing of Nanostructured Blades for a Francis Turbine by Isothermal Forging of AA6063. Journal of Manufacturing Science and Engineering 2013, 136, 011009 .
AMA StyleD. Salcedo, C. J. Luis, J. Leon, I. Puertas, J. P. Fuertes, R. Luri. Manufacturing of Nanostructured Blades for a Francis Turbine by Isothermal Forging of AA6063. Journal of Manufacturing Science and Engineering. 2013; 136 (1):011009.
Chicago/Turabian StyleD. Salcedo; C. J. Luis; J. Leon; I. Puertas; J. P. Fuertes; R. Luri. 2013. "Manufacturing of Nanostructured Blades for a Francis Turbine by Isothermal Forging of AA6063." Journal of Manufacturing Science and Engineering 136, no. 1: 011009.
Aluminum foams are porous metallic materials which possess an outstanding combination of physical and mechanical properties such as: a high rigidity with a very low density. In this present research work, a study on the upsetting of an aluminum foam (with a density = 0.73 g/cm3) is carried out by employing different compression velocity values. From the results obtained, it is possible to determine the material flow stress for its subsequent use in finite element simulations (FEM). Once the material flow stress has been determined, it will be employed in order to analyze the conformability of several parts by FEM.
Juan Pablo Fuertes; Rodrigo Luri; Javier León; Daniel Salcedo; Ignacio Puertas; Carmelo J. Luis. Modeling of the Behavior of an Aluminum Metallic Foam by Both FEM and Experimental Results. Materials Science Forum 2013, 773-774, 478 -487.
AMA StyleJuan Pablo Fuertes, Rodrigo Luri, Javier León, Daniel Salcedo, Ignacio Puertas, Carmelo J. Luis. Modeling of the Behavior of an Aluminum Metallic Foam by Both FEM and Experimental Results. Materials Science Forum. 2013; 773-774 ():478-487.
Chicago/Turabian StyleJuan Pablo Fuertes; Rodrigo Luri; Javier León; Daniel Salcedo; Ignacio Puertas; Carmelo J. Luis. 2013. "Modeling of the Behavior of an Aluminum Metallic Foam by Both FEM and Experimental Results." Materials Science Forum 773-774, no. : 478-487.
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 the mechanical 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.
Daniel Salcedo; Carmelo Luis; Ignacio Puertas; Javier León; Juan Pablo Fuertes; Rodrigo Luri. Analysis on the Manufacturing of an AA5083 Straight Blade Previously ECAE Processed. Advances in Materials Science and Engineering 2013, 2013, 1 -7.
AMA StyleDaniel Salcedo, Carmelo Luis, Ignacio Puertas, Javier León, Juan Pablo Fuertes, Rodrigo Luri. Analysis on the Manufacturing of an AA5083 Straight Blade Previously ECAE Processed. Advances in Materials Science and Engineering. 2013; 2013 ():1-7.
Chicago/Turabian StyleDaniel Salcedo; Carmelo Luis; Ignacio Puertas; Javier León; Juan Pablo Fuertes; Rodrigo Luri. 2013. "Analysis on the Manufacturing of an AA5083 Straight Blade Previously ECAE Processed." Advances in Materials Science and Engineering 2013, no. : 1-7.