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Surface texturing has brought significant improvements in the functional properties of parts and components. Sinker electro discharge machining (SEDM) is one of the processes which generates great texturing results at different scale. An electrode is needed to reproduce the geometry to be textured. Some geometries are difficult or impossible to achieve on an electrode using conventional and even unconventional machining methods. This work sets out the advances made in the manufacturing of copper electrodes for electro erosion by additive manufacturing, and their subsequent application to the functional texturing of Al-Cu UNS A92024-T3 alloy. A combined procedure of digital light processing (DLP) additive manufacturing, sputtering and micro-electroforming (AMSME), has been used to produce electrodes. Also, a specific laboratory equipment has been developed to reproduce details on a microscopic scale. Shells with outgoing spherical geometries pattern have been manufactured. AMSME process has shown ability to copper electrodes manufacturing. A highly detailed surface on a micrometric scale have been achieved. Copper shells with minimum thickness close to 300 µm have been tested in sinker electro discharge machining (SEDM) and have been shown very good performance in surface finishing operations. The method has shown great potential for use in surfaces texturing.
Carlos Sánchez; Pedro Hernández; María Martínez; María Marrero; Jorge Salguero. Combined Manufacturing Process of Copper Electrodes for Micro Texturing Applications (AMSME). Materials 2021, 14, 2497 .
AMA StyleCarlos Sánchez, Pedro Hernández, María Martínez, María Marrero, Jorge Salguero. Combined Manufacturing Process of Copper Electrodes for Micro Texturing Applications (AMSME). Materials. 2021; 14 (10):2497.
Chicago/Turabian StyleCarlos Sánchez; Pedro Hernández; María Martínez; María Marrero; Jorge Salguero. 2021. "Combined Manufacturing Process of Copper Electrodes for Micro Texturing Applications (AMSME)." Materials 14, no. 10: 2497.
The application of carbon fiber reinforced thermoplastic matrix composites (CFRTP) is constantly increasing in various industrial sectors due to their mechanical properties and advantages compared to thermoset matrix composite. Nevertheless, CFRTP machining generates a current problem due to the anisotropy of these materials, the difficulty of impregnation of the reinforcement in the matrix, and its low melting temperature. For this reason, the study of conventional operations such as milling to achieve geometries with a good surface quality and reduced cosmetic defects is a line of research of great interest. In this article, a comparison of five cutting tools with different geometries has been made in CFRTP milling. The surface quality and the formation of visual defects such as fiber pull-out have been evaluated for each tool and combination of cutting parameters. In this sense, 16.42 μm in terms of Rz is the minimum average value for the complete experiment obtained for a conventional tool (tool A). However, surface qualities in terms of Rz close to 20 μm and minimum cosmetic defects have been obtained with a hybrid tool (tool C) with −10° helix angle and 8 teeth with a combination of cutting parameters of 0.07 mm/tooth and 3000 rpm, being the most complete tool of the experiment.
Alejandro Sambruno; Fermin Bañon; Jorge Salguero; Bartolome Simonet; Moises Batista. Study of milling of low thickness thermoplastic carbon fiber composites in function of tool geometry and cutting conditions. The International Journal of Advanced Manufacturing Technology 2021, 114, 2515 -2526.
AMA StyleAlejandro Sambruno, Fermin Bañon, Jorge Salguero, Bartolome Simonet, Moises Batista. Study of milling of low thickness thermoplastic carbon fiber composites in function of tool geometry and cutting conditions. The International Journal of Advanced Manufacturing Technology. 2021; 114 (7-8):2515-2526.
Chicago/Turabian StyleAlejandro Sambruno; Fermin Bañon; Jorge Salguero; Bartolome Simonet; Moises Batista. 2021. "Study of milling of low thickness thermoplastic carbon fiber composites in function of tool geometry and cutting conditions." The International Journal of Advanced Manufacturing Technology 114, no. 7-8: 2515-2526.
The bonding of metallic alloys and composite materials in the form of a hybrid structure is a line of great interest for the current industry. The different machinability of both materials requires a specific machining process. Abrasive water-jet machining (AWJM) is an excellent technology for the simultaneous machining of both materials. However, defects at the micro and macro-geometric level have been detected in several scientific articles. In this review, a detailed study of the two main defects in metals, composite materials and hybrid structures has been developed. The conclusions of several scientific articles have been exposed for a better understanding of the topic in articles between 1984 and 2020. The influence of the cutting parameters on the reduction in kinetic energy of the water jet and the order of stacking of the materials in the hybrid structure is the main objective in order to minimize these defects. Cutting parameter optimization studies, predictive model proposals, process-associated defects and evaluation methodologies have been discussed. The aim of this article is to set a solid background on AWJM machining in hybrid structures and on the influence of cutting parameters on generated defects and machining strategies to obtain the best results at a macro and micro-geometric level.
Fermin Bañon; Alejandro Sambruno; Leandro González-Rovira; Juan Manuel Vazquez-Martinez; Jorge Salguero. A Review on the Abrasive Water-Jet Machining of Metal–Carbon Fiber Hybrid Materials. Metals 2021, 11, 164 .
AMA StyleFermin Bañon, Alejandro Sambruno, Leandro González-Rovira, Juan Manuel Vazquez-Martinez, Jorge Salguero. A Review on the Abrasive Water-Jet Machining of Metal–Carbon Fiber Hybrid Materials. Metals. 2021; 11 (1):164.
Chicago/Turabian StyleFermin Bañon; Alejandro Sambruno; Leandro González-Rovira; Juan Manuel Vazquez-Martinez; Jorge Salguero. 2021. "A Review on the Abrasive Water-Jet Machining of Metal–Carbon Fiber Hybrid Materials." Metals 11, no. 1: 164.
The development of high-complexity geometry parts is one of the main goals of additive manufacturing technology. However, the failure of printed structures and the joining of different parts to create complex assemblies represents a real challenge in the research of efficient and sustainability techniques for the permanent assembly of polymers. Laser welding processes have been used as a single-step method to join metals for years. Nowadays, the growing trend in the use of thermoplastics for additive manufacturing has led to the need to adapt this technique to materials with a very specific nature and which are more sensitive to thermal effects. In addition, the possibility of transmitting the laser beam through transparent polymer layers allows to us focus the energy supply on internal sections of the assembled components. In this research, an infrared laser marking system was used to join two different samples of polylactic acid manufactured by fused deposited modeling technology. In order to increase the effectiveness of the bonding process, a transparent and a dark sample have been used as assembly material, focusing the laser beam on the interface area of the two parts. By means of tensile tests, dimensional measurement and the use of optical microscopy techniques, a basis was established that links the supplied energy by laser to the joining performance.
J. M. Vazquez-Martinez; D. Piñero; J. Salguero; M. Batista. Evaluation of the Joining Response of Biodegradable Polylactic Acid (PLA) from Fused Deposition Modeling by Infrared Laser Irradiation. Polymers 2020, 12, 2479 .
AMA StyleJ. M. Vazquez-Martinez, D. Piñero, J. Salguero, M. Batista. Evaluation of the Joining Response of Biodegradable Polylactic Acid (PLA) from Fused Deposition Modeling by Infrared Laser Irradiation. Polymers. 2020; 12 (11):2479.
Chicago/Turabian StyleJ. M. Vazquez-Martinez; D. Piñero; J. Salguero; M. Batista. 2020. "Evaluation of the Joining Response of Biodegradable Polylactic Acid (PLA) from Fused Deposition Modeling by Infrared Laser Irradiation." Polymers 12, no. 11: 2479.
Machining operations are chosen by aircraft manufacturers worldwide to process light aluminum alloys. This type of materials presents good characteristics in terms of weight and physicochemical properties, which combined with a low cost ratio making them irreplaceable in aircraft elements with a high structural commitment. Conventional machining processes such as drilling, milling and turning are widely used for aeronautical parts manufacturing. High quality requirements are usually demanded for these kinds of components but aluminum alloys may present some machinability issues, basically associated to the heat generated during the process. Among others, surface quality and geometrical deviations are highly influenced by the condition of the cutting-tool, its wear and the cutting parameters. Consequently, the understanding of the relationship among the process parameters, the quality features and the main wear mechanism is a key factor for the improvement in the productivity. In this chapter, the fundamental issues of drilling, milling and turning are addressed, dealing with the relationship between cutting parameters, wear phenomena and micro and macro geometrical deviations.
Jorge Salguero; Irene Del Sol; Alvaro Gomez-Parra; Moises Batista. Machining of Al-Cu and Al-Zn Alloys for Aeronautical Components. Aluminium Alloys [Working Title] 2020, 1 .
AMA StyleJorge Salguero, Irene Del Sol, Alvaro Gomez-Parra, Moises Batista. Machining of Al-Cu and Al-Zn Alloys for Aeronautical Components. Aluminium Alloys [Working Title]. 2020; ():1.
Chicago/Turabian StyleJorge Salguero; Irene Del Sol; Alvaro Gomez-Parra; Moises Batista. 2020. "Machining of Al-Cu and Al-Zn Alloys for Aeronautical Components." Aluminium Alloys [Working Title] , no. : 1.
The development of high complexity geometry parts is one of the main goals of the additive manufacturing technology. However, the failure of printed structures and the joining of different parts to create complex assemblies represents a real challenge in the research of efficient and sustainability techniques for the permanent assembly of polymers. Laser welding processes have been used as a single step method to join metals until years ago. Nowadays, the growing trend in the use of thermoplastics for additive manufacturing has led to the need to adapt this technique to materials with a very specific nature and more sensitive to thermal effects. Also, the possibility of transmitting the laser beam through transparent polymer layers allows to focus the energy supply on internal sections of the assembled components. In this research, an infrared laser marking system was used to join two different samples of polylactic acid manufactured by fused deposited modeling technology. In order to increase the effectiveness of the bonding process, a transparent and a dark sample have been used as assembly material, focusing the laser beam on the interface area of the two parts. By means of tensile tests, dimensional measurement and the use of optical microscopy techniques, a basis was established that links the supplied energy by laser to the joining performance.
J.M. Vazquez-Martinez; D. Piñero; J. Salguero; M. Batista. Enhancing the Joining Properties of Biodegradable PLA from Fused Deposition Modeling by Infrared Laser Irradiation. 2020, 1 .
AMA StyleJ.M. Vazquez-Martinez, D. Piñero, J. Salguero, M. Batista. Enhancing the Joining Properties of Biodegradable PLA from Fused Deposition Modeling by Infrared Laser Irradiation. . 2020; ():1.
Chicago/Turabian StyleJ.M. Vazquez-Martinez; D. Piñero; J. Salguero; M. Batista. 2020. "Enhancing the Joining Properties of Biodegradable PLA from Fused Deposition Modeling by Infrared Laser Irradiation." , no. : 1.
The shipbuilding industry and its approaches to the Industry 4.0 technologies are very few nowadays. Since the naval sector is one of the most important around the world due to its strategic, billing and employment, it is necessary for it to adapt to the fourth industrial revolution through the Key Enabling Technologies. As there is not a full view of the challenges this transformation will face, this work aims to establish the starting point for it. This research work studies the actual state of the shipbuilding industry, analysing it and giving an overview on the digital challenges. A synthesis of the Industry 4.0 potential and its benefits in the naval industry is carried out to prove that the digital transformation is necessary. A research on the initiatives taken by the enterprises of the naval sector regarding technologies linked with Industry 4.0 is conducted, so the trending in this sector can be established and analysed. Therefore, the challenges this industrial sector will have to face to meet the requirements of the Industry 4.0 are described in this work, as they are the main focus point to work on before an effective Industry 4.0 implementation and achieve the sector’s sustainability. Keywords: Industry 4.0, Shipyard 4.0, Key Enabling Technologies, Naval sector, Digital Transformation.
Alejandro Javier Sánchez Sotano; Magdalena Ramírez Peña; Francisco Abad Fraga; Jorge Salguero Gómez. APPROACH OF THE NAVAL INDUSTRY TOWARDS INDUSTRY 4.0. DYNA 2020, 95, 492 -496.
AMA StyleAlejandro Javier Sánchez Sotano, Magdalena Ramírez Peña, Francisco Abad Fraga, Jorge Salguero Gómez. APPROACH OF THE NAVAL INDUSTRY TOWARDS INDUSTRY 4.0. DYNA. 2020; 95 (1):492-496.
Chicago/Turabian StyleAlejandro Javier Sánchez Sotano; Magdalena Ramírez Peña; Francisco Abad Fraga; Jorge Salguero Gómez. 2020. "APPROACH OF THE NAVAL INDUSTRY TOWARDS INDUSTRY 4.0." DYNA 95, no. 1: 492-496.
The supply chain is currently taking on a very important role in organizations seeking to improve the competitiveness and profitability of the company. Its transversal character mainly places it in an unbeatable position to achieve this role. This article, through a study of each of the key enabling technologies of Industry 4.0, aims to obtain a general overview of the current state of the art in shipbuilding adapted to these technologies. To do so, a systematic review of what the scientific community says is carried out, dividing each of the technologies into different categories. In addition, the global vision of countries interested in each of the enabling technologies is also studied. Both studies present a general vision to the companies of the concerns of the scientific community, thus encouraging research on the subject that is focused on the sustainability of the shipbuilding supply chain.
Magdalena Ramirez-Peña; Francisco J. Abad Fraga; Jorge Salguero; Moises Batista. Assessing Sustainability in the Shipbuilding Supply Chain 4.0: A Systematic Review. Sustainability 2020, 12, 6373 .
AMA StyleMagdalena Ramirez-Peña, Francisco J. Abad Fraga, Jorge Salguero, Moises Batista. Assessing Sustainability in the Shipbuilding Supply Chain 4.0: A Systematic Review. Sustainability. 2020; 12 (16):6373.
Chicago/Turabian StyleMagdalena Ramirez-Peña; Francisco J. Abad Fraga; Jorge Salguero; Moises Batista. 2020. "Assessing Sustainability in the Shipbuilding Supply Chain 4.0: A Systematic Review." Sustainability 12, no. 16: 6373.
The joining of dissimilar materials in a hybrid structure is a line of research of great interest at present. Nevertheless, the machining of materials with different machinability requires specific processes capable of minimizing defectology in both materials and achieving a correct surface finish in terms of functional performance. In this article, abrasive water jet machining of a hybrid carbon fiber-reinforced thermoplastics (CFRTP)/Steel structure and the generated surface finish are studied. A parametric study in two stacking configurations (CFRTP/Steel and Steel/CFRTP) has been established in order to determine the range of cutting parameters that generates the lowest values in terms of arithmetic mean roughness (Ra) and maximum profile height (Rz). The percentage contribution of each cutting parameter has been identified through an ANOVA analysis for each material and stacking configuration. A combination of 420 MPa hydraulic pressure with an abrasive mass flow of 385 g/min and a travel speed of 50 mm/min offers the lowest Ra and Rz values in the CFRTP/Steel configuration. The stacking order is a determining factor, obtaining a better surface quality in a CFRTP/Steel stack. Finally, a series of contour diagrams relating surface quality to machining conditions have been obtained.
Fermin Bañon; Bartolome Simonet; Alejandro Sambruno; Moises Batista; Jorge Salguero. On the Surface Quality of CFRTP/Steel Hybrid Structures Machined by AWJM. Metals 2020, 10, 983 .
AMA StyleFermin Bañon, Bartolome Simonet, Alejandro Sambruno, Moises Batista, Jorge Salguero. On the Surface Quality of CFRTP/Steel Hybrid Structures Machined by AWJM. Metals. 2020; 10 (7):983.
Chicago/Turabian StyleFermin Bañon; Bartolome Simonet; Alejandro Sambruno; Moises Batista; Jorge Salguero. 2020. "On the Surface Quality of CFRTP/Steel Hybrid Structures Machined by AWJM." Metals 10, no. 7: 983.
Engineering 4.0 environments are characterised by the digitisation, virtualisation, and connectivity of products, processes, and facilities composed of reconfigurable and adaptive socio-technical cyber-physical manufacturing systems (SCMS), in which Operator 4.0 works in real time in VUCA (volatile, uncertain, complex and ambiguous) contexts and markets. This situation gives rise to the interest in developing a framework for the conception of SCMS that allows the integration of the human factor, management, training, and development of the competencies of Operator 4.0 as fundamental aspects of the aforementioned system. The present paper is focused on answering how to conceive the adaptive manufacturing systems of Industry 4.0 through the operation, growth, and development of human talent in VUCA contexts. With this objective, exploratory research is carried, out whose contribution is specified in a framework called Design for the Human Factor in Industry 4.0 (DfHFinI4.0). From among the conceptual frameworks employed therein, the connectivist paradigm, Ashby's law of requisite variety and Vigotsky's activity theory are taken into consideration, in order to enable the affective-cognitive and timeless integration of the human factor within the SCMS. DfHFinI4.0 can be integrated into the life cycle engineering of the enterprise reference architectures, thereby obtaining manufacturing systems for Industry 4.0 focused on the human factor. The suggested framework is illustrated as a case study for the Purdue Enterprise Reference Architecture (PERA) methodology, which transforms it into PERA 4.0.
Susana Suarez-Fernandez De Miranda; Francisco Aguayo-González; Jorge Salguero-Gómez; María Jesús Ávila-Gutiérrez. Life Cycle Engineering 4.0: A Proposal to Conceive Manufacturing Systems for Industry 4.0 Centred on the Human Factor (DfHFinI4.0). Applied Sciences 2020, 10, 4442 .
AMA StyleSusana Suarez-Fernandez De Miranda, Francisco Aguayo-González, Jorge Salguero-Gómez, María Jesús Ávila-Gutiérrez. Life Cycle Engineering 4.0: A Proposal to Conceive Manufacturing Systems for Industry 4.0 Centred on the Human Factor (DfHFinI4.0). Applied Sciences. 2020; 10 (13):4442.
Chicago/Turabian StyleSusana Suarez-Fernandez De Miranda; Francisco Aguayo-González; Jorge Salguero-Gómez; María Jesús Ávila-Gutiérrez. 2020. "Life Cycle Engineering 4.0: A Proposal to Conceive Manufacturing Systems for Industry 4.0 Centred on the Human Factor (DfHFinI4.0)." Applied Sciences 10, no. 13: 4442.
Carbon fiber-reinforced thermoplastics (CFRTP) have great interest nowadays due to their excellent mechanical properties and lightness. However, in opposition to thermoset matrix composites, there is a lake in the research about machining processes of these materials. Their low glass transition temperature is a handicap when conventional machining is used. An alternative is abrasive water jet machining (AWJM) because it does not cause thermal damage. However, the surface quality produced by this process must be studied and related to the cutting parameters. This article studies the surface quality generated by water jet machining in a low melting point thermoplastic matrix composite material. The kind of thermoplastic used is a TPU (polyurethane). The combination of a high-strength material (carbon fiber) with a low-strength material (thermoplastic matrix) makes machining difficult and can generate a poor surface finish. The influence of cutting parameters has been evaluated through an ANOVA analysis. A mathematical model that relates the surface quality with the cutting parameters has been established by means of a response surface methodology (RSM). The combination of a hydraulic pressure of 250 MPa with a traverse speed of 300 mm/min and an abrasive mass flow of 170 g/min produces the best surface quality. Finally, the main flaws when CFRTP is water jet machined have also been identified.
Fermin Bañon; Alejandro Sambruno; Moises Batista; Bartolome Simonet; Jorge Salguero. Study of the surface quality of carbon fiber–reinforced thermoplastic matrix composite (CFRTP) machined by abrasive water jet (AWJM). The International Journal of Advanced Manufacturing Technology 2020, 107, 3299 -3313.
AMA StyleFermin Bañon, Alejandro Sambruno, Moises Batista, Bartolome Simonet, Jorge Salguero. Study of the surface quality of carbon fiber–reinforced thermoplastic matrix composite (CFRTP) machined by abrasive water jet (AWJM). The International Journal of Advanced Manufacturing Technology. 2020; 107 (7-8):3299-3313.
Chicago/Turabian StyleFermin Bañon; Alejandro Sambruno; Moises Batista; Bartolome Simonet; Jorge Salguero. 2020. "Study of the surface quality of carbon fiber–reinforced thermoplastic matrix composite (CFRTP) machined by abrasive water jet (AWJM)." The International Journal of Advanced Manufacturing Technology 107, no. 7-8: 3299-3313.
The new paradigms of Industry 4.0 force all the industrial sectors to face a deep digital transformation in order to be on the edge in a competitive and globalized scenario. Following this trend, the shipbuilding industry has to establish its own path to adapt itself to the digital era. This chapter aims to explore this challenge and give an outlook on the multiple transformative technologies that are involved. For that reason, a case of study is presented as a starting point, in which the digital technologies that can be applied are easily recognized. A social network analysis (SNA) is developed among these key enabling technologies (KETs), in order to stress their correlations and links. As a result, artificial intelligence (AI) can be highlighted as a support to the other technologies, such as vertical integration of naval production systems (e.g., connectivity, Internet of things, collaborative robotics, etc.), horizontal integration of value networks (e.g., cybersecurity, diversification, etc.), and life cycle reengineering (e.g., drones, 3D printing (3DP), virtual and augmented reality, remote sensing networks, robotics, etc.).
Alejandro Sánchez-Sotano; Alberto Cerezo-Narváez; Francisco Abad-Fraga; Andrés Pastor-Fernández; Jorge Salguero-Gómez. Trends of Digital Transformation in the Shipbuilding Sector. New Trends in the Use of Artificial Intelligence for the Industry 4.0 2020, 1 .
AMA StyleAlejandro Sánchez-Sotano, Alberto Cerezo-Narváez, Francisco Abad-Fraga, Andrés Pastor-Fernández, Jorge Salguero-Gómez. Trends of Digital Transformation in the Shipbuilding Sector. New Trends in the Use of Artificial Intelligence for the Industry 4.0. 2020; ():1.
Chicago/Turabian StyleAlejandro Sánchez-Sotano; Alberto Cerezo-Narváez; Francisco Abad-Fraga; Andrés Pastor-Fernández; Jorge Salguero-Gómez. 2020. "Trends of Digital Transformation in the Shipbuilding Sector." New Trends in the Use of Artificial Intelligence for the Industry 4.0 , no. : 1.
This paper presents a preliminary study of aluminium matrix composite materials during machining, with a special focus on their behavior under conventional processes. This work will expand the knowledge of these materials, which is considered to be strategic for some industrial sectors, such as the aeronautics, electronics, and automotive sectors. Finding a machining model will allow us to define the necessary parameters when applying the materials to industry. As a previous step of the material and its machining, an experimental state-of-the-art review has been carried out, revealing a lack of studies about the composition and material properties, processes, tools, and recommended parameters. The results obtained and reflected in this paper are as follows; SiC is present in metallic matrix composite (MMC) materials in a very wide variety of sizes. A metallographic study of the material confirms the high percentage of reinforcement and very high microhardness values registered. During the machining process, tools present a very high level of wear in a very short amount of time, where chips are generated and arcs are segmented, revealing the high microhardness of the material, which is given by its high concentration of SiC. The chip shape is the same among other materials with a similar microhardness, such as Ti or its alloys. The forces registered in the machining process are quite different from conventional alloys and are more similar to the values of harder alloys, which is also the case for chip generation. The results coincide, in part, with previous studies and also give new insight into the behavior of this material, which does not conform to the assumptions for standard metallic materials, where the hypothesis of Shaffer is not directly applicable. On the other hand, here, cutting forces do not behave in accordance with the traditional model. This paper will contribute to improve the knowledge of the Al-63%SiC MMC itself and the machining behavior.
David Repeto; Severo Raul Fernández-Vidal; Pedro F. Mayuet; Jorge Salguero; Moisés Batista. On the Machinability of an Al-63%SiC Metal Matrix Composite. Materials 2020, 13, 1186 .
AMA StyleDavid Repeto, Severo Raul Fernández-Vidal, Pedro F. Mayuet, Jorge Salguero, Moisés Batista. On the Machinability of an Al-63%SiC Metal Matrix Composite. Materials. 2020; 13 (5):1186.
Chicago/Turabian StyleDavid Repeto; Severo Raul Fernández-Vidal; Pedro F. Mayuet; Jorge Salguero; Moisés Batista. 2020. "On the Machinability of an Al-63%SiC Metal Matrix Composite." Materials 13, no. 5: 1186.
The guidelines contained in the so-called Factory of the Future have served as the basis for the implementation of Industry 4.0, which in the environment of the shipbuilding industry has been called Shipyard 4.0, and which represents a radical change in the work paradigm, based on traditional manufacturing systems.
Victor Perez Fernandez; Alvaro Gomez Parra; Luis Lafuente Molinero; Jorge Salguero Gómez. METHODOLOGICAL PROPOSAL FOR THE ADAPTATION OF VALUE STREAM MAPPING TO SIMULATION MODELS IN NAVAL ENVIRONMENTS. DYNA 2020, 95, 126 -126.
AMA StyleVictor Perez Fernandez, Alvaro Gomez Parra, Luis Lafuente Molinero, Jorge Salguero Gómez. METHODOLOGICAL PROPOSAL FOR THE ADAPTATION OF VALUE STREAM MAPPING TO SIMULATION MODELS IN NAVAL ENVIRONMENTS. DYNA. 2020; 95 (1):126-126.
Chicago/Turabian StyleVictor Perez Fernandez; Alvaro Gomez Parra; Luis Lafuente Molinero; Jorge Salguero Gómez. 2020. "METHODOLOGICAL PROPOSAL FOR THE ADAPTATION OF VALUE STREAM MAPPING TO SIMULATION MODELS IN NAVAL ENVIRONMENTS." DYNA 95, no. 1: 126-126.
Surface modification by different technologies prior to joining operations or improving tribological properties is a point of great interest. Improving surface activation by increasing the roughness of the metal is a relationship that is becoming more defined. In turn, an increase in surface wettability by evaluating contact angles indicates surface activation by obtaining a high surface free energy. Technologies such as shot blasting and laser surface texturing (LST) have generated several scientific studies where they have identified the influence of parameters on the formation of rough surfaces with defined patterns. However, the application of abrasive water jet texturing (AWJT) has been little studied as an alternative. This article compares these technologies in the texturing of a carbon steel s275 in order to identify the relationship between surface quality and surface activation. It has been determined that AWJT produces the highest Rt values close to 64 µm with a cross feed of 0.45 mm and a traverse speed of 5000 mm/min. Furthermore, LST obtains the best values of free surface energy by combining a power of 20 W with a frequency of 20 kHz and a sweeping speed of 10 mm/s. Finally, contour diagrams have been obtained which relate these variables to the texturing parameters.
Fermin Bañon; Alejandro Sambruno; Moises Batista; Bartolome Simonet; Jorge Salguero. Surface Quality and Free Energy Evaluation of s275 Steel by Shot Blasting, Abrasive Water Jet Texturing and Laser Surface Texturing. Metals 2020, 10, 290 .
AMA StyleFermin Bañon, Alejandro Sambruno, Moises Batista, Bartolome Simonet, Jorge Salguero. Surface Quality and Free Energy Evaluation of s275 Steel by Shot Blasting, Abrasive Water Jet Texturing and Laser Surface Texturing. Metals. 2020; 10 (2):290.
Chicago/Turabian StyleFermin Bañon; Alejandro Sambruno; Moises Batista; Bartolome Simonet; Jorge Salguero. 2020. "Surface Quality and Free Energy Evaluation of s275 Steel by Shot Blasting, Abrasive Water Jet Texturing and Laser Surface Texturing." Metals 10, no. 2: 290.
Helical milling has been positioned as an alternative to conventional drilling, where the advantages it offers make it very attractive for use on difficult-to-machine alloys such as the titanium alloy UNS R56400. However, the correlation between the indicator of hole quality and the kinematic parameters has rarely been studied. The kinematics are what bring most advantages and that is why it is necessary to know their influence. In this aspect, there are different focuses of problems associated with the complexity of the process kinematics, which makes it necessary to undertake a deeper analysis of the process and to carry out a preliminary study. To address this problem, a DOE (Design of Experiments) is proposed to identify the sensitivity and the main trends of the properties that define the quality holes with respect to the kinematic parameters. At the same time, a nomenclature is proposed to unify and avoid misinterpretations. This study has allowed us to obtain conclusive results that offer very relevant information for future research
Francisco Javier Puerta-Morales; Jorge Salguero Gomez; Severo Raul Fernandez-Vidal. Study of the Influence of Helical Milling Parameters on the Quality of Holes in the UNS R56400 Alloy. Applied Sciences 2020, 10, 845 .
AMA StyleFrancisco Javier Puerta-Morales, Jorge Salguero Gomez, Severo Raul Fernandez-Vidal. Study of the Influence of Helical Milling Parameters on the Quality of Holes in the UNS R56400 Alloy. Applied Sciences. 2020; 10 (3):845.
Chicago/Turabian StyleFrancisco Javier Puerta-Morales; Jorge Salguero Gomez; Severo Raul Fernandez-Vidal. 2020. "Study of the Influence of Helical Milling Parameters on the Quality of Holes in the UNS R56400 Alloy." Applied Sciences 10, no. 3: 845.
Carbon fiber-reinforced thermoplastics (CFRTPs) are materials of great interest in industry. Like thermosets composite materials, they have an excellent weight/mechanical properties ratio and a high degree of automation in their manufacture and recyclability. However, these materials present difficulties in their machining due to their nature. Their anisotropy, together with their low glass transition temperature, can produce important defects in their machining. A process able to machine these materials correctly by producing very small thermal defects is abrasive waterjet machining. However, the dispersion of the waterjet produces a reduction in kinetic energy, which decreases its cutting capacity. This results in an inherent defect called a kerf taper. Also, machining these materials with reduced thicknesses can increase this defect due to the formation of a damage zone at the beginning of cut due to the abrasive particles. This paper studies the influence of cutting parameters on the kerf taper generated during waterjet machining of a thin-walled thermoplastic composite material (carbon/polyurethane, C/TPU). This influence was studied by means of an ANOVA statistical analysis, and a mathematical model was obtained by means of a response surface methodology (RSM). Kerf taper defect was evaluated using a new image processing methodology, where the initial and final damage zone was separated from the kerf taper defect. Finally, a combination of a hydraulic pressure of 3400 bar with a feed rate of 100 mm/min and an abrasive mass flow of 170 g/min produces the minimum kerf taper angle.
Alejandro Sambruno; Fermin Bañon; Jorge Salguero; Bartolome Simonet; Moises Batista. Kerf Taper Defect Minimization Based on Abrasive Waterjet Machining of Low Thickness Thermoplastic Carbon Fiber Composites C/TPU. Materials 2019, 12, 4192 .
AMA StyleAlejandro Sambruno, Fermin Bañon, Jorge Salguero, Bartolome Simonet, Moises Batista. Kerf Taper Defect Minimization Based on Abrasive Waterjet Machining of Low Thickness Thermoplastic Carbon Fiber Composites C/TPU. Materials. 2019; 12 (24):4192.
Chicago/Turabian StyleAlejandro Sambruno; Fermin Bañon; Jorge Salguero; Bartolome Simonet; Moises Batista. 2019. "Kerf Taper Defect Minimization Based on Abrasive Waterjet Machining of Low Thickness Thermoplastic Carbon Fiber Composites C/TPU." Materials 12, no. 24: 4192.
The use of composite materials with a polymeric matrix, concretely carbon fiber reinforced polymer, is undergoing further development owing to the maturity reached by the forming processes and their excellent relationship in terms of specific properties. This means that they can be implemented more easily in different industrial sectors at a lower cost. However, when the components manufactured demand high dimensional and geometric requirements, they must be subjected to machining processes that cause damage to the material. As a result, alternative methods to conventional machining are increasingly being proposed. In this article, the abrasive waterjet machining process is proposed because of its advantages in terms of high production rates, absence of thermal damage and respect for the environment. In this way, it was possible to select parameters (stand-off distance, traverse feed rate, and abrasive mass flow rate) that minimize the characteristic defects of the process such as taper angle or the identification of different surface quality regions in order to eliminate striations caused by jet deviation. For this purpose, taper angle and roughness evaluations were carried out in three different zones: initial or jet inlet, intermediate, and final or jet outlet. In this way, it was possible to characterize different cutting regions with scanning electronic microscopy (SEM) and to distinguish the statistical significance of the parameters and their effects on the cut through an analysis of variance (ANOVA). This analysis has made it possible to distinguish the optimal parameters for the process.
Pedro F. Mayuet Ares; Franck Girot Mata; Moisés Batista Ponce; Jorge Salguero Gómez. Defect Analysis and Detection of Cutting Regions in CFRP Machining Using AWJM. Materials 2019, 12, 4055 .
AMA StylePedro F. Mayuet Ares, Franck Girot Mata, Moisés Batista Ponce, Jorge Salguero Gómez. Defect Analysis and Detection of Cutting Regions in CFRP Machining Using AWJM. Materials. 2019; 12 (24):4055.
Chicago/Turabian StylePedro F. Mayuet Ares; Franck Girot Mata; Moisés Batista Ponce; Jorge Salguero Gómez. 2019. "Defect Analysis and Detection of Cutting Regions in CFRP Machining Using AWJM." Materials 12, no. 24: 4055.
Most of the current works based on surface treatments of metals by laser marking technology are focused on the modification of the color tonality of flat surfaces, or the development of specific topography features, but the combination of both processes is not usually evaluated, mainly due to the complexity of controlling the optical properties on rough surfaces. This research presents an analysis of the influence of the micro-geometrical characteristics of periodic patterned laser tracks on the chromaticity and reflectance of Ti6Al4V substrates. The samples were irradiated with an infrared nanosecond pulsed laser in air atmosphere, taking as the control parameter the scan speed of the beam. A roughness evaluation, microscopic inspection, and absorption and chromaticity examination were conducted. Although micro-crack growth was detected in an isolated case (10 mm/s), the possibility of adjusting the result color was demonstrated by controlling the heat-affected zone thickness of the textures. The results of rough/colored combined textures allow new perspectives in industrial design to open, particularly in aesthetic applications with special properties.
J.M. Vazquez-Martinez; J. Salguero; E. Blanco; J.M. González-Leal. Nanosecond Pulsed Laser Irradiation of Titanium Alloy Substrate: Effects of Periodic Patterned Topography on the Optical Properties of Colorizing Surfaces. Coatings 2019, 9, 658 .
AMA StyleJ.M. Vazquez-Martinez, J. Salguero, E. Blanco, J.M. González-Leal. Nanosecond Pulsed Laser Irradiation of Titanium Alloy Substrate: Effects of Periodic Patterned Topography on the Optical Properties of Colorizing Surfaces. Coatings. 2019; 9 (10):658.
Chicago/Turabian StyleJ.M. Vazquez-Martinez; J. Salguero; E. Blanco; J.M. González-Leal. 2019. "Nanosecond Pulsed Laser Irradiation of Titanium Alloy Substrate: Effects of Periodic Patterned Topography on the Optical Properties of Colorizing Surfaces." Coatings 9, no. 10: 658.
Light alloy machining is a widely implemented process that is usually used in the presence of cutting fluids to reduce wear and increase tool life. The use of coolants during machining presents negative environmental impacts, which has increased interest in reducing and even eliminating their use. In order to obtain ecofriendly machining processes, it will be necessary to suppress the use of cutting fluids, in a trend called “dry machining”. This fact forces machines to work under aggressive cutting conditions, producing adhesion wear that affects the integrity of the parts’ surfaces. This study describes cutting tool wear mechanisms in machining of UNS A92024 samples under dry cutting conditions. Energy dispersive spectroscopy (EDS) analysis shows the different compositions of the adhered layers. Roughness is also positively affected by the change of the cutting geometry produced in the tool.
Moises Batista; Irene Del Sol; Álvaro Gómez-Parra; Magdalena Ramirez-Peña; Jorge Salguero; Del Sol; Gomez- Parra; Ramirez- Peña. Study of the Tool Wear Process in the Dry Turning of Al–Cu Alloy. Metals 2019, 9, 1094 .
AMA StyleMoises Batista, Irene Del Sol, Álvaro Gómez-Parra, Magdalena Ramirez-Peña, Jorge Salguero, Del Sol, Gomez- Parra, Ramirez- Peña. Study of the Tool Wear Process in the Dry Turning of Al–Cu Alloy. Metals. 2019; 9 (10):1094.
Chicago/Turabian StyleMoises Batista; Irene Del Sol; Álvaro Gómez-Parra; Magdalena Ramirez-Peña; Jorge Salguero; Del Sol; Gomez- Parra; Ramirez- Peña. 2019. "Study of the Tool Wear Process in the Dry Turning of Al–Cu Alloy." Metals 9, no. 10: 1094.