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Now showing items 101-110 of 217
Kontaktuaren zenbakizko simulazioa artezketan
(2017-01-13)
Artezketan eragiten duten fenomenoak, harriaren eta piezaren arteko kontaktu-baldintzen naturarekin eta horien bilakaerarekin lotura zuzena dute. Kontaktu-eremuaren definizioak funtsezko garrantzia dauka artezketa-tenperaturen, ...
Optimización de perfiles de rodadura ferroviaria
(2017-06-30)
El objetivo de la Tesis es desarrollar un método de optimización de perfiles de rueda de ferrocarril,basado en la técnica de los Algoritmos Genéticos, que permita sintetizar nuevos perfiles con un mejorcomportamiento desde ...
On the Influence of Infra-Red Sensor in the Accurate Estimation of Grinding Temperatures
(MDPI, 2018-11-26)
Workpiece rejection originated by thermal damage is of great concern in high added-value industries, such as automotive or aerospace. Surface temperature control is vital to avoid this kind of damage. Difficulties in ...
Unsupervised Machine Learning for Advanced Tolerance Monitoring of Wire Electrical Discharge Machining of Disc Turbine Fir-Tree Slots
(MDPI, 2018-10-08)
Manufacturing more efficient low pressure turbines has become a topic of primary importance for aerospace companies. Specifically, wire electrical discharge machining of disc turbine fir-tree slots has attracted increasing ...
On the Cutting Performance of Segmented Diamond Blades when Dry-Cutting Concrete
(MDPI, 2018-02-09)
The objective of the present study is to analyze and compare the cutting performance of segmented diamond blades when dry-cutting concrete. A cutting criteria is proposed to characterize the wear of the blades by measuring ...
Short-Cut Method to Assess a Gross Available Energy in a Medium-Load Screw Friction Press
(MDPI, 2018-03)
The present study proposed a rapid method, based on a previous universal compression tests, to estimate the required load capacity to cold forge different specimen quantity in a screw press. Accordingly, experimental and ...
Approaches for improvement of EDM performance and for the understanding of electrode wear phenomena
(2018-04-23)
La electroerosión (EDM) es un proceso termo-eléctrico en el que el material se elimina mediante una serie de descargas eléctricas generadas entre el electrodo y la pieza, que se encuentras sumergida en un medio dieléctrico. ...
Una nueva aproximación a la optimización del proceso de WEDM en base a la experimentación y la analítica de cantidades masivas de datos
(2018-09-14)
El proceso de corte mediante electroerosión por hilo siempre se ha caracterizado por conseguir tolerancias ajustadas en las piezas fabricadas, aun cuando estas contienen geometrías complejas, con cambios bruscos de dirección. ...
An Original Tribometer to Analyze the Behavior of Abrasive Grains in the Grinding Process
(MDPI, 2018-07)
Manufacturing of grinding wheels is continuously adapting to new industrial requirements. New abrasives and new wheel configurations, together with wheel wear control allow for grinding process optimization. However, the ...
The patents in the introduction of reinforced concrete in Spain: "Alhondiga de Bilbao" case study
(Instituto de Ciencias de la Construcción Eduardo Torroja, 2014-06)
Reinforced concrete structures are introduced in Spain mainly by French influence. This happens in the late nineteenth century, following the scheme operating through proprietary systems prevailing in Europe. Systems ...