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Ara es mostren els items 124-131 de 131

    • Ultrasonic vibration-assisted ball burnishing tool for a lathe characterized by acoustic emission and vibratory measurements 

      Fernández Osete, Ismael; Estévez Urra, Aida; Velázquez Corral, Eric; Valentín Ruiz, David; Llumà Fuentes, Jordi; Jerez Mesa, Ramón; Travieso Rodríguez, José Antonio (Multidisciplinary Digital Publishing Institute (MDPI), 2021-10-01)
      Article
      Accés obert
      This paper focuses on a resonant system used to induce a low-amplitude movement and ultrasonic frequency to complement a ball burnishing process on a lathe. The system was characterized through the combination of different ...

    • Uso de la enseñanza no presencial para fomentar la transversalidad del aprendizaje 

      Llumà Fuentes, Jordi; Jorba Peiró, Jordi (Universitat de Lleida [etc.], 2008, 2008)
      Text en actes de congrés
      Accés obert

    • Uso de la enseñanza no presencial para fomentar la transversalidad del aprendizaje 

      Llumà Fuentes, Jordi; Jorba Peiró, Jordi (Universitat de Lleida, 2008-12)
      Comunicació de congrés
      Accés obert
      La enseñanza no presencial presenta un formato ideal para el aprendizaje basado en proyectos al no requerir la concurrencia de docente y discentes en el mismo lugar, permite el trabajo en equipo y se puede desarrollar fuera ...

    • Vibration-assisted ball burnishing 

      Jerez Mesa, Ramón; Llumà Fuentes, Jordi; Travieso Rodríguez, José Antonio (MDPI AG, 2021-06-11)
      Article
      Accés obert
      Vibration-Assisted Ball Burnishing is a finishing processed based on plastic deformation by means of a preloaded ball on a certain surface that rolls over it following a certain trajectory previously programmed while ...

    • Viscoelastic characterization of a thermoplastic elastomer processed through material extrusion 

      Adrover Monserrat, Bàrbara; García Vilana, Silvia; Sánchez Molina, David; Llumà Fuentes, Jordi; Jerez Mesa, Ramón; Travieso Rodríguez, José Antonio (Multidisciplinary Digital Publishing Institute (MDPI), 2022-07-18)
      Article
      Accés obert
      Objective. We aim to characterize the viscoelastic behavior of Polyether-Block-Amide (PEBA 90A), provide reference values for the parameters of a constitutive model for the simulation of mechanical behaviors, and paying ...

    • Viscoelastic characterization of parasagittal bridging veins and implications for traumatic brain injury: a pilot study 

      García Vilana, Silvia; Sánchez Molina, David; Llumà Fuentes, Jordi; Galtés Vicente, Ignasi; Velázquez Ameijide, Juan; Rebollo Soria, María Carmen; Arregui Dalmases, Carlos (2021-10-18)
      Article
      Accés obert
      Many previous studies on the mechanical properties of Parasagittal Bridging Veins (PSBVs) found that strain rate had a significant effect on some mechanical properties, but did not extensively study the viscoelastic effects, ...

    • Wear resistance and friction analysis of Ti6Al4V cylindrical ball-burnished specimens with and without vibration assistance 

      Velázquez Corral, Eric; Wagner, Vincent; Jerez Mesa, Ramón; Delbé, Karl; Llumà Fuentes, Jordi; Travieso Rodríguez, José Antonio; Dessein, Gilles (Springer Nature, 2023-02-01)
      Article
      Accés obert
      The objective of the research is to analyze the impact of the ultrasonic vibration assistance on the wear resistance due to the topography enhancement caused on Ti6Al4V cylindrical samples after surface modification through ...

    • Wear resistance enhancement of AISI 1045 steel by vibration assisted ball burnishing process 

      Velázquez Corral, Eric; Jerez Mesa, Ramón; Llumà Fuentes, Jordi; Wagner, Vincent; Dessein, Gilles; Travieso Rodríguez, José Antonio (Elsevier, 2022)
      Article
      Accés obert
      The objective of the research was to analyse the impact of the ultrasonic vibration assistance on the wear resistance and topology enhancement of AISI 1045 cylindrical steel samples after a ball burnishing process. Burnishing ...