Listar Departamento de Mecánica por autor "3376d99a-45fa-4e4a-8d9d-c9bca81b44ad"
Mostrando ítems 1-18 de 18
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Advances in lubricated polydimethylsiloxane surfaces for polyurethane foam molding
Guerrero-Vaca, G.; Rodríguez-Alabanda, O.; Ibáñez-Ibáñez, Pablo Francisco; Rodríguez-Valverde, Miguel Ángel (Wiley, 2022)Adhesion problems are currently a challenge in the manufacture of molded polyurethane (PUR) foam products. Here, a novel solution has been proposed by infusing a polydimethylsiloxane (PDMS) matrix with a liquid lubricant ... -
Analysis, Validation and Optimization of the Multi-Stage Sequential Wiredrawing Process of EN AW-1370 Aluminium
Rodríguez-Alabanda, O.; Romero, Pablo E.; Molero, Esther; Guerrero-Vaca, G. (MDPI, 2019)For the wiredrawing of aluminium, the initial wire rod is obtained by continuous inverted casting. The raw geometry is industrially processed in a linear multi-step wiredrawing sequence to obtain a wire that is commonly ... -
Aplicación transversal sobre calidad superficial en Ingeniería de fabricación
Rodríguez-Alabanda, O.; Melero-Bolaños, J.C.; Trujillo Flores, Eduardo; Guerrero-Vaca, G. (UCOPress, 2017)Se ha fabricado y recubierto una serie de moldes físicos: chapas rectangulares de Al-Mg, con distintos materiales poliméricos que han permitido abarcar distintos puntos de vista de la ingeniería de superficies que se ... -
Evaluation of Substrates of Al-Mg and Aluminized Steel Coated With Non-Stick Fluoropolymers after the Removal of the Coating
Rodríguez-Alabanda, O.; Romero, Pablo E.; Guerrero-Vaca, G. (MDPI, 2018)Many trays and pieces of Al-Mg and aluminized steel are used in the food industry. Sometimes these elements have non-stick coatings to solve problems related to the adhesion of masses and food products. With use, the ... -
Evaluation of the effectiveness and durability of commercial non-stick coatings
Guerrero-Vacas, Guillermo; Comino, F.; Rodríguez-Alabanda, O. (Elsevier, 2024)In this study, four commercial non-stick coatings (two fluoropolymer and two ceramic) were characterized by micrography, Raman spectroscopy and energy dispersive X-ray spectroscopy (EDX). A pancake batter was then baked ... -
Evaluation of the effectiveness and durability of commercial non-stick coatings
Guerrero-Vacas, Guillermo; Comino, F.; Rodríguez-Alabanda, O. (Elsevier, 2024)In this study, four commercial non-stick coatings (two fluoropolymer and two ceramic) were characterized by micrography, Raman spectroscopy and energy dispersive X-ray spectroscopy (EDX). A pancake batter was then baked ... -
Experimental Study for the Stripping of PTFE Coatings on Al-Mg Substrates Using Dry Abrasive Materials
Guerrero-Vaca, G.; Carrizo Tejero, David; Rodríguez-Alabanda, O.; Romero, Pablo E.; Molero, Esther (MDPI, 2020)Polytetrafluoroethylene (PTFE) coatings are used in many applications and processing industries. With their use, they wear out and lose properties and must be replaced by new ones if the cost of the element so advises. ... -
Manufacturing of Non-Stick Molds from Pre-Painted Aluminum Sheets via Single Point Incremental Forming
Rodríguez-Alabanda, O.; Narvaez, Miguel A.; Romero, Pablo E.; Guerrero-Vaca, G. (MDPI, 2018)The process of single point incremental formation (SPIF) awakens interest in the industry of mold manufacturing for the food industry. By means of SPIF, it is possible to generate short series of molds or mold prototypes ... -
Non-Stick Coatings in Aluminium Molds for the Production of Polyurethane Foam
Sánchez-Urbano, Francisco; Paz-Gómez, Guillermo; Rodríguez-Alabanda, O.; Romero, Pablo E.; Cabrerizo-Vílchez, Miguel; Rodríguez-Valverde, Miguel Ángel; Guerrero-Vaca, G. (MDPI, 2018)The manufacturing of polyurethane foam is a process of great industrial importance in the automotive and furniture sector. The operation of demolding is the most delicate, since the foam sticks firmly to the walls of the ... -
Performance and durability of non-stick coatings applied to stainless steel: subtractive vs. additive manufacturing
Guerrero-Vacas, Guillermo; Rodríguez-Alabanda, O.; Martín-Fernández, Francisco de Sales; Martín-Sánchez, M. (MDPI, 2023)This study compares subtractive manufacturing (SM) and additive manufacturing (AM) techniques in the production of stainless-steel parts with non-stick coatings. While subtractive manufacturing involves the machining of ... -
Selection of Parameters and Strategies to Reduce Energy Consumption and Improve Surface Quality in EN-AW 7075 Molds Machining
Rodríguez-Alabanda, O.; Bonilla, María Trinidad; Guerrero-Vaca, G.; Romero, Pablo E. (MDPI, 2018)The machining of cavities for blow molding is a long and costly process, with the objective of obtaining an excellent surface finish with the minimal possible electrical energy consumption (EEC). This work has studied ... -
Stripping of PFA Fluoropolymer Coatings Using a Nd:YAG Laser (Q-Switch) and an Yb Fiber Laser (CW)
Guerrero-Vaca, G.; Rodríguez-Alabanda, O.; Romero, Pablo E.; Soriano, Carlos; Molero, Esther; Lambarri, Jon (MDPI, 2019)Fluoropolymers such as PFA are used as coatings for the protection of metal substrates due to their high chemical inertia and non-stick properties. These are “wear and tear” coatings and they degrade, at which point they ... -
Study on the Main Influencing Factors in the Removal Process of Non-Stick Fluoropolymer Coatings Using Nd:YAG Laser
Rodríguez-Alabanda, O.; Romero, Pablo E.; Soriano, Carlos; Sevilla, Lorenzo; Guerrero-Vaca, G. (MDPI, 2019)The coatings with fluoropolymer resins rich in fluorinated ethylene propylene (FEP) and polytetrafluoroethylene (PTFE) are applied as anti-adherent coatings on aluminum–magnesium substrates for use in food containers. In ... -
Superhydrophobic Cerium-Based Coatings on Al-Mg Alloys and Aluminized Steel
Guerrero-Vaca, G.; Rodríguez-Valverde, Miguel Ángel; Castilla-Montilla, Pedro; Alguacil-Salamanca, Francisco; Rodríguez-Alabanda, O.; Romero, Pablo E.; Molero, Esther; Montes Ruiz-Cabello, F. Javier (MDPI, 2019)Aluminum-magnesium (Al-Mg) alloy and aluminum-coated steel (aluminized steel) are typically used for the manufacturing of baking trays and molds. For these applications, these materials must be modified to develop release ... -
The influences of the variable speed and internal die geometry on the performance of two commercial soluble oils in the drawing process of pure copper fine wire
Santana Martínez, Gustavo Aristides; Rodríguez-Alabanda, O.; Prisco, Umberto; Tintelecan, Marius; Kabayama, Leonardo Kyo (Springer, 2021)The cold wiredrawing process constitutes a classical-tribological system in which a stationary tribe-element (die) is in contact with a tribe-element in relative motion (wire) and both interacting with the interfacial ... -
Use of Data Mining Techniques for the Prediction of Surface Roughness of Printed Parts in Polylactic Acid (PLA) by Fused Deposition Modeling (FDM): A Practical Application in Frame Glasses Manufacturing
Molero, Esther; Fernández, Juan Jesús; Rodríguez-Alabanda, O.; Guerrero-Vaca, G.; Romero, Pablo E. (MDPI, 2020)In the present work, ten data mining algorithms have been used to generate models capable of predicting the surface roughness of parts printed on polylactic acid (PLA) by using fused deposition modeling (FDM). The models ... -
Use of the support vector machine (SVM) algorithm to predict geometrical accuracy in the manufacture of molds via single point incremental forming (SPIF) using aluminized steel sheets
Romero, Pablo E.; Rodríguez-Alabanda, O.; Molero, Esther; Guerrero-Vaca, G. (Elsevier, 2021)In the present work, the use of the support vector machine (SVM) algorithm is proposed to generate models that allow predicting the geometrical accuracy of molds manufactured via single point incremental forming (SPIF) ... -
Water-Repellent Fluoropolymer-Based Coatings
Paz-Gómez, Guillermo; Caño-Ochoa, Juan Carlos; Rodríguez-Alabanda, O.; Romero, Pablo E.; Cabrerizo-Vílchez, Miguel; Guerrero-Vaca, G.; Rodríguez-Valverde, Miguel Ángel (MDPI, 2019)Fluoropolymer-based coatings are widely used for release applications. However, these hydrophobic surfaces do not reveal a significantly low adhesion. Water repellency incorporated to fluoropolymer coatings might enhance ...