Browsing by Author "González Rojas, Hernan Alberto"

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 Access

El 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
Restricted access - publisher's policy

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 Access

Burnishing 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 policy

The 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 Access

In 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 Access

Molds, 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 ...

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