Browsing by Author "González Rojas, Hernan Alberto"
Now showing items 21-40 of 61
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Estudio del fenómeno de electroplasticidad atérmica en el comportamiento mecánico y metalúrgico del acero AISI-SAE 4140 ensayado a tracción
Montilla Montaña, Carlos A.; González Rojas, Hernan Alberto; Higuera Cobos, Oscar Fabián; Kallewaard, Valentina; Sánchez Egea, Antonio José (2018)
Conference report
Open AccessEl fenómeno de electroplasticidad (EP por sus siglas en inglés) consiste en el cambio de las propiedades mecánicas de un metal, debido a la aplicación simultánea de esfuerzos mecánicos de tracción, compresión, flexión, ... -
Evaluation of oscillatory repetitive movements in Parkinson disease and Essential tremor: implications for physiopathology and differential diagnosis
Costa, João; González Rojas, Hernan Alberto; Valldeoriola, Francesc; Gaig, Carlos; Tolosa, Eduardo; Valls-Solé, Josep (2009-10-15)
Article
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Examen de re-evaluación (Curs 2020-2021)
González Rojas, Hernan Alberto (Universitat Politècnica de Catalunya, 2021-01-27)
Exam
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Examen final (Curs 2019-2020)
Magnusson Morer, Ingrid; González Rojas, Hernan Alberto (Universitat Politècnica de Catalunya, 2020-01-09)
Exam
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Examen final (Curs 2020-2021)
González Rojas, Hernan Alberto (Universitat Politècnica de Catalunya, 2021-01-15)
Exam
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Examen final (Curs 2020-2021)
González Rojas, Hernan Alberto (Universitat Politècnica de Catalunya, 2021-01-11)
Exam
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Examen final [Curs 2015-2016] - Q2
Casariego Vales, Pedro; González Rojas, Hernan Alberto; López Membrilla, Dolores; Pérez Guindal, Elsa; Ruiz López, Juan Luis; Torras Sendra, M. Alba (Universitat Politècnica de Catalunya, 2016-06-23)
Exam
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Examen final [Curs 2016-2017] - Q2
Ruiz López, Juan Luis; Pérez Guindal, Elsa; López Membrilla, Dolores; González Rojas, Hernan Alberto; Casariego Vales, Pedro; Torras Sendra, M. Alba (Universitat Politècnica de Catalunya, 2017-06-23)
Exam
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Examen final [Curs 2018-2019] - Q2
González Rojas, Hernan Alberto (Universitat Politècnica de Catalunya, 2019-06-07)
Exam
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Examen parcial (Curs 2019-2020)
Magnusson Morer, Ingrid; González Rojas, Hernan Alberto (Universitat Politècnica de Catalunya, 2019-11-04)
Exam
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Examen parcial [Curs 2019-2020] - Q2
González Rojas, Hernan Alberto (Universitat Politècnica de Catalunya, 2020-03-27)
Exam
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Examen Teoria A (Curs 2016/2017)
González Rojas, Hernan Alberto (Universitat Politècnica de Catalunya, 2017-06-23)
Exam
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Experimental study on the mechanical effects of the vibration-assisted ball-burnishing process
Travieso Rodriguez, Jose Antonio; Gómez Gras, Giovanni; Jorba Peiró, Jordi; Carrillo, F J.; Dessein, Gilles; Alexis, Joël; González Rojas, Hernan Alberto (2015-12-02)
Article
Open AccessBurnishing processes are effective methods for treating pieces to increase their durability and roughness. Studies reveal that traditional burnishing can be strongly improved with the assistance of external energy sources. ... -
Improvement of cold wire drawing process by electropulsing
Sánchez Egea, Antonio José; González Rojas, Hernan Alberto; Jorba Peiró, Jordi (2015)
Conference report
Restricted access - publisher's policyThe electroplastic effects on wire drawing process assisted with different short time current pulses configurations are investigated experimentally. The current pulses were induced to a specimen during the drawing process. ... -
Influence of eccentricity on roughness distributions in side milling
Buj Corral, Irene; Vivancos Calvet, Joan; González Rojas, Hernan Alberto (2016-06-01)
Article
Open AccessIn this paper, a numerical model was used based on the tool-piece geometric intersection, which enables the determination of a roughness profile as a function of feed, tool radii and tool eccentricity in side milling ... -
Influence of peak height prior to milling the resulting surface roughness of the ball burnishing process on convex and concave pieces of aluminum
Gómez Gras, Giovanni; Travieso Rodriguez, Jose Antonio; González Rojas, Hernan Alberto; Nápoles Alberro, Amelia (2012)
Conference lecture
Open AccessMolds, counterfoils of conformation, and many other industrial pieces with important presentations, face constant the engineers with the problem of obtaining superficial qualities that minimize the friction, optimize the ... -
Influence of the regime of electropulsing-assisted machining on the plastic deformation of the layer being cut
Hameed, Saqib; González Rojas, Hernan Alberto; Perat Benavides, Josep Ignasi; Nápoles Alberro, Amelia; Sánchez Egea, Antonio J (2018-05-25)
Article
Open AccessIn this article, the influence of electropulsing on the machinability of steel S235 and aluminium 6060 has been studied during conventional and electropulsing-assisted turning processes. The machinability indices such as ... -
Influence of the tool eccentricity on the surface roughnes obtained in side milling processes
Buj Corral, Irene; Vivancos Calvet, Joan; González Rojas, Hernan Alberto (2009)
Conference lecture
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Influencia del proceso de bruñido con bola sobre la dureza y las tensiones residuales en el aluminio A92017
Travieso Rodriguez, Jose Antonio; González Rojas, Hernan Alberto; Gómez Gras, Giovanni; Nápoles Alberro, Amelia; Sánchez Egea, Antonio José (2012)
Conference lecture
Open AccessEl bruñido con bola se realiza, para mejorar el acabado de las piezas que han sido mecanizadas y para obtener una superficie más dura con tensiones residuales a compresión. De este modo se obtendrá una mayor resistencia ... -
Ingeniería de procesos de fabricación
Travieso Rodriguez, Jose Antonio; González Rojas, Hernan Alberto (2011-10-21)
Book
Open Access