Recent Submissions

  • Estimation of specific cutting energy in an S235 alloy for multi-directional ultrasonic vibration-assisted machining using the Finite Element Method 

    Florez García, Luis Carlos; González Rojas, Hernan Alberto; Sánchez Egea, Antonio José (Multidisciplinary Digital Publishing Institute (MDPI), 2020-01-24)
    Article
    Open Access
    The objective of this work is to analyze the influence of the vibration-assisted turning process on the machinability of S235 carbon steel. During the experiments using this vibrational machining process, the vibrational ...
  • Influence of manufacturing and assembly defects and the quality of materials on the performance of an axial-flux switched reluctance machine 

    Andrada Gascón, Pedro; Blanqué Molina, Balduino; Martínez Piera, Eusebio; Perat Benavides, Josep Ignasi; Sánchez López, José Antonio; Torrent Burgués, Marcel (2019-12-17)
    Article
    Open Access
    This paper investigated the influence of manufacturing and assembly defects and the quality of materials on the performance of an axial-flux switched reluctance machine (AFSRM). An AFSRM drive was designed and built for ...
  • An ultra-fast annealing treatment by electropulsing during pure copper wire drawing 

    González Rojas, Hernan Alberto; Sánchez Egea, Antonio José; Hameed, Saqib; Bolmaro, Raúl (Multidisciplinary Digital Publishing Institute (MDPI), 2019-11-23)
    Article
    Open Access
    The influence of electropulses in situ on the drawing process of copper wires was investigated with the aim of avoiding time consuming annealing thermal treatments. It was found that with the application of electropulses, ...
  • Corrosion behavior of an AISI/SAE steel cut by electropulsing 

    Montilla Montaña, Carlos Alberto; González Rojas, Hernan Alberto; Kallewaard Echeverri, Valentina; Tristancho Reyes, José Luis (Multidisciplinary Digital Publishing Institute (MDPI), 2019-11-18)
    Article
    Open Access
    The effect of electropulsing treatment (EPT) on the surface general corrosion behavior of an AISI/SAE 1045 steel under different machining regimes is studied. In the study, the following variables are alternated: high-speed ...
  • Engineering education for sustainable development: The European Project Semester approach 

    Duarte, Abel José; Malheiro, Benedita; Arnó Macià, Elisabet; Perat Benavides, Josep Ignasi (2019-07-16)
    Article
    Restricted access - publisher's policy
    Contribution: An analysis of the extent to which sustainability is present in the syllabi, project briefs, report templates, and student final reports of the three Iberian European project semester (EPS) providers, over a ...
  • On the microstructure effects when using electropulsing versus furnace treatments while drawing inox 308L 

    Sánchez Egea, Antonio José; Jorba Peiró, Jordi; Signorelli, Javier Walter; González Rojas, Hernan Alberto; Celentano, Diego Javier (Elsevier, 2019-05-07)
    Article
    Restricted access - publisher's policy
    In the present work, microstructure and texture evolution in a commercial 308L stainless steel wire is assessed by comparing several electropulsing configurations and thermal annealing treatments performed during and after ...
  • Model based on an effective material-removal rate to evaluate specific energy consumption in grinding 

    Nápoles Alberro, Amelia; González Rojas, Hernan Alberto; Sánchez Egea, Antonio José; Hameed, Saqib; Peña Aguilar, Reyna Mercedes (Multidisciplinary Digital Publishing Institute (MDPI), 2019-03-21)
    Article
    Open Access
    Grinding energy efficiency depends on the appropriate selection of cutting conditions, grinding wheel, and workpiece material. Additionally, the estimation of specific energy consumption is a good indicator to control the ...
  • Physical model to predict the ball-burnishing forces 

    González Rojas, Hernan Alberto; Travieso Rodriguez, Jose Antonio (2011-09-23)
    Article
    Restricted access - publisher's policy
    In this paper, we have developed a physical model to predict the forces of the ball burnishing. The models have been constructed on the basis of the plasticity theory. During the model development we have figured out the ...
  • Effect of electropulses on the machinability of a C45E steel 

    Montilla Montaña, Carlos; Kallewaard, Valentina; González Rojas, Hernan Alberto (2019-01-01)
    Article
    Open Access
    This article compares the machinability of a C45E (AISI/SAE 1045) steel type under two different manufacturing processes: conventional machining and pulsed current assisted machining. The testing procedure consisted on the ...
  • Electromagnetic evaluation of an in-wheel double rotor axial-flux switched reluctance motor for electric traction 

    Andrada Gascón, Pedro; Martínez Piera, Eusebio; Torrent Burgués, Marcel; Blanqué Molina, Balduino (2017-04-01)
    Article
    Open Access
  • Machinability estimation by drilling monitoring 

    González Rojas, Hernan Alberto; Nápoles Alberro, Amelia; Sánchez Egea, Antonio José (2018-07-03)
    Article
    Open Access
    This article describes the development of a methodology to measure the specific cutting energy (SCE) in drilling. The SCE allows to characterize the machining process, thus obtaining a technologic approach to plan the ...
  • Electropulsing effects on mechanical and metallurgical behavior of AISI-SAE 4140 steel 

    Montilla Montaña, Carlos A.; González Rojas, Hernan Alberto; Higuera Cobos, Oscar Fabián; Kallewaard, Valentina; Sánchez Egea, Antonio J (2018-10-02)
    Article
    Open Access
    The electroplasticity phenomenon (EP) produces changes in the mechanical properties of a metal, due to the simultaneous application of mechanical stresses of compression, bending, etc., and high instantaneous current pulses. ...

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