1,752 research outputs found
Author Workshop
No full textLa Universidad del Rosario realizará el Taller de Autores “Springer Author Workshop”, evento académico ofrecido por la Editorial Springer y organizado por la Biblioteca y el Centro de Gestión del Conocimiento. Al evento están invitados los investigadores de la Universidad interesados en adquirir nuevas herramientas y destrezas a la hora de publicar un artículo científico. Lugar auditorio Mutis el 19-09-2014
Improving Surface Quality and Fatigue Life of Electron Beam Melted Ti6Al4V by Chemical Machining
No full textDue to the high demand for innovative parts from the aerospace, biomedical, and automotive industries, 3D printing of titanium parts is widely researched. Electron beam melting (EBM) is one of the few additive manufacturing techniques that can quickly generate high density components. However, additive manufacturing techniques based on powder beds are characterized by subpar surface finishing, which also results in poor mechanical performances that are not suitable for industrial standards. Thus, surface finishing post processing is generally needed. Since fatigue behavior is strongly affected by surface quality, this work aims to highlight how chemical machining impacts this type of mechanical response. Rotating fatigue beam testing method has been chosen for the experimental campaign since it intrinsically stresses more the sample surfaces, in this way the effect of surface finishing is highlighted
Comparison of specific cutting energy in dry and wet post- process turning of Ti6Al4V EBM parts
No full textTechnological and sustainability implications of wet and dry turning of Ti6Al4V EBM parts
No full textInfluence of building direction on the fatigue crack-growth of Ti6Al4V specimens made by EBM
No full textElectron Beam Melting (EBM) is a technology that allows to process materials, such as titanium alloys, that require high process temperatures and are difficult-to-machine through traditional manufacturing technologies. The Ti6Al4V alloy, widely used in biomedical, automotive and aerospace applications, relies in the group of the materials that present these requirements and, nowadays, is perhaps the most widely EBM-printed material.
The performance of this material under cyclic loading can be influenced by many factors such as porosities, residual stresses, corrosive environments, building direction, etc. This research aimed at assessing the fatigue crack propagation behavior of TiAl64V specimens made by EBM along different building directions. Tests were carried out using standard 8 mm thick Compact-Tension C(T) specimens in laboratory conditions. The main objective was to study the effects of the building direction on the residual fatigue life of specimens and to understand the fatigue failure mechanisms
Energy consumption assessment in manufacturing Ti6Al4V electron beam melted parts post-processed by machining
No full textOf liberals and desarrollistas : the Herald and Clarín against the economic policy of Martínez de Hoz (1976-1981)
No full textFil: Borrelli, Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Universidad de Buenos Aires; ArgentinaFil: Porta, María Sol. Universidad de Buenos Aires; Argentina
“Que se vayan” la revista peronista Línea frente a la dictadura militar a través de sus tapas y contratapas (1980-1982)
No full textFil: Borrelli, Marcelo. Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Fil: Raices, Eduardo. Universidad de Buenos Aires; Argentina
Saborido, Mercedes; Borrelli, Marcelo (2016) Historia del fundamentalismo islámico desde sus orígenes hasta el ISIS
No full textFil: Barranco, Paula. Universidad Nacional de Rosario. Facultad de Humanidades y Artes; Argentina
Puerto Rican Culture and Identity as Seen in Rosario Ferre's The House on the Lagoon
No full textThe main purpose of this study is to analyze how Puerto Rican author Rosario Ferré presents a unique Puerto Rican perspective through the female characters in her novel The House on the Lagoon, and how these female characters struggle with issues of race, gender, and class as it unfolds within Puerto Rican culture and history.Englis
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