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Machining distortion prediction for aerospace structural components
(2022-12-20)
Las distorsiones son un problema recurrente en la producción de componentes estructurales aeroespaciales, y conlleva altos costos y desperdicio de material y energía en la industria. Actualmente se resuelve mediante largos ...
Effect of powder particle size distribution on the surface finish of components manufactured by laser powder bed fusion
(Springer, 2023)
One of the key aspects of the laser powder bed fusion (L-PBF) process is the quality of the raw powder since it affects the final properties of the manufactured parts. In this study, 13 batches of Inconel (R) 718 powder ...
A reliable turning process by the early use of a deep simulation model at several manufacturing stages
(MDPI, 2017-05-02)
The future of machine tools will be dominated by highly flexible and interconnected systems, in order to achieve the required productivity, accuracy, and reliability. Nowadays, distortion and vibration problems are easily ...
Pneumatikoetako kautxu birziklatuz fabrikaturiko material baten karakterizazioa kolpeen aurrean
(2017-07-05)
Doktorego Tesi honetan pneumatikoetako kautxua birziklatzeko helburuarekin, aplikazio potentzial modura moto-ziklisten babeserako errepideetako hesietan estaldura moduan eman zaio. Horretarako LLDPEarekin osatutako nahastea ...
Optimización del proceso de fabricación de utillajes de conformado en caliente mediante el cálculo del mapa térmico de la pieza estampada
(2021-01-25)
El objetivo de este trabajo de investigación es desarrollar una metodología de optimización de superficiesde mecanizado de troquel mediante la predicción de deformaciones térmicas debidas a un mapa detemperaturas heterogéneo ...
Modelización del comportamiento de partículas cerámicas nanométricas en aleaciones de aluminio en estado líquido y su influencia en las propiedades mecánicas
(2022-07-19)
Las restricciones relativas a las emisiones contaminantes planteadas por la Unión Europea hacen que el desarrollo de nuevos materiales sea crítico y necesario. Considerando el sector del transporte uno de los más contaminantes, ...
Strain Virtual Sensing for Structural Health Monitoring under Variable Loads
(MDPI, 2023-05-12)
Virtual sensing is the process of using available data from real sensors in combination with a model of the system to obtain estimated data from unmeasured points. In this article, different strain virtual sensing algorithms ...
Investigating the effect of novel self-lubricant TiSiVN films on topography, diffusion and oxidation phenomenon at the chip-tool interface during dry machining of Ti-6Al-4V alloy
(Elsevier, 2023-08)
Machining of titanium alloys such as Ti-6Al-4 V can be very intimidating due to their low thermal conductivity leading to elevated cutting temperatures at the chip-tool interface (ICT). In this regard, the self-lubrication ...
Predicting rail corrugation in a real line by means of a fast non-linear vertical and lateral model
(Elsevier, 2023-07)
This work is the result of a problem of premature development of rail corrugation found on a new metro line. As urgent solutions, a rail grinding was carried out and friction modifier started to be applied. Experimental ...
Multibody dinamikaren ekuazioen integrazioa metodo estrukturalak erabiliz
(2023-05-22)
The main contribution of this document lies on the development of a new algorithm to integrate the equations of multibody dynamics using Newmark. This method takes advantage of the use of fundamental nullspace basis to ...