• Análisis de la influencia de las condiciones de proceso sobre el acabado superficial de materiales cerámicos fabricados por electroerosión 

      Puertas Arbizu, Iñaki Upna; Luis Pérez, Carmelo Upna (CENIM, 2004)   Artículo / Artikulua  OpenAccess
      El mecanizado por electroerosión (en inglés, Electrical Discharge Machining, EDM) constituye una alternativa emergente frente a otros procesos de fabricación de materiales cerámicos conductores, tales como: mecanizado por ...
    • Análisis de la influencia del tratamiento térmico de envejecimiento en la modificación de las propiedades mecánicas de la aleación AA6060 procesada por ECAE 

      Pérez Ruiz, Iván; Luis Pérez, Carmelo Upna; Luri Irigoyen, Rodrigo Upna; León Iriarte, Javier Upna; Puertas Arbizu, Iñaki Upna (CENIM, 2011)   Artículo / Artikulua  OpenAccess
      En el presente trabajo se ha realizado un estudio de la modificación de las propiedades mecánicas de la aleación de aluminio AA6060 F, al ser deformada mediante deformación plástica severa empleando el proceso de extrusión ...
    • Analysis of fatigue and wear behaviour in ultrafine grained connecting rods 

      Luri Irigoyen, Rodrigo Upna; Luis Pérez, Carmelo Upna; León Iriarte, Javier Upna; Fuertes Bonel, Juan Pablo Upna; Salcedo Pérez, Daniel Upna; Puertas Arbizu, Iñaki Upna (MDPI, 2017)   Artículo / Artikulua  OpenAccess
      Over the last few years there has been an increasing interest in the study and development of processes that make it possible to obtain ultra-fine grained materials. Although there exists a large number of published works ...
    • Analysis on the manufacturing of an AA5083 straight blade previously ECAE processed 

      Salcedo Pérez, Daniel Upna; Luis Pérez, Carmelo Upna; Puertas Arbizu, Ignacio Upna; León Iriarte, Javier Upna; Fuertes Bonel, Juan Pablo Upna; Luri Irigoyen, Rodrigo Upna (Hindawi, 2013)   Artículo / Artikulua  OpenAccess
      Over these past few years, there have been a large number of technical papers published related to the problem of improving the mechanical properties of materials obtained through severe plastic deformation. Nevertheless, ...
    • Analytical modelling of energy density and optimization of the EDM machining parameters of Inconel 600 

      Torres Salcedo, Alexia Upna; Puertas Arbizu, Iñaki Upna; Luis Pérez, Carmelo Upna (MDPI, 2017)   Artículo / Artikulua  OpenAccess
      In this present research work, a new modelling of energy density in EDM (Electrical Discharge Machining) is proposed. Energy density can be defined as the amount of energy needed to get a unit volume of material removed, ...
    • Comparative study of the damage attained with different specimens by FEM 

      Fuertes Bonel, Juan Pablo Upna; Luri Irigoyen, Rodrigo Upna; Luis Pérez, Carmelo Upna; Salcedo Pérez, Daniel Upna; León Iriarte, Javier Upna; Puertas Arbizu, Iñaki Upna (Elsevier, 2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This present research work deals with the analysis of the design of different specimen geometries so that by finite volume simulations, the appearance of cracks may be predicted in the case of forging processes. To this ...
    • Design and mechanical properties analysis of AA5083 ultrafine grained cams 

      Salcedo Pérez, Daniel Upna; Luis Pérez, Carmelo Upna; Luri Irigoyen, Rodrigo Upna; Puertas Arbizu, Iñaki Upna; León Iriarte, Javier Upna; Fuertes Bonel, Juan Pablo Upna (MDPI, 2017)   Artículo / Artikulua  OpenAccess
      This present research work deals with the development of ultrafine grained cams obtained from previously ECAP (Equal Channel Angular Pressing)-processed material and manufactured by isothermal forging. The design and the ...
    • Design and optimization of the dies for the isothermal forging of a cam 

      Salcedo Pérez, Daniel Upna; Luis Pérez, Carmelo Upna; Luri Irigoyen, Rodrigo Upna; León Iriarte, Javier Upna; Puertas Arbizu, Iñaki Upna; Fuertes Bonel, Juan Pablo Upna (Elsevier, 2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In the present study, the design of the dies required for the isothermal forging of a cam is analysed by finite volume method. Specifically, cams are of great importance in automotive industry, where a lower weight and ...
    • Design, optimization, and mechanical property analysis of a submicrometric aluminium alloy connecting rod 

      Fuertes Bonel, Juan Pablo Upna; León Iriarte, Javier Upna; Luis Pérez, Carmelo Upna; Salcedo Pérez, Daniel Upna; Puertas Arbizu, Iñaki Upna; Luri Irigoyen, Rodrigo Upna (Hindawi, 2015)   Artículo / Artikulua  OpenAccess
      Ultrafine grained materials have a great deal of both scientific and technological interest because they allow outstanding properties to be obtained. An improvement in the mechanical strength and in the ductility and a ...
    • Design, simulation and manufacturing of a connecting rod from ultra-fine grained material and isothermal forging 

      Fuertes Bonel, Juan Pablo Upna; Luis Pérez, Carmelo Upna; Luri Irigoyen, Rodrigo Upna; Salcedo Pérez, Daniel Upna; León Iriarte, Javier Upna; Puertas Arbizu, Iñaki Upna (Elsevier, 2016)   Artículo / Artikulua  OpenAccess
      In this research work, a study on the mechanical properties of isothermal forging for connecting rods is made from previously ECAP (Equal Channel Angular Pressing)-processed AA1050 and AA5083 aluminium alloys. This severe ...
    • Development of nanostructured AA3103 by equal channel angular pressing and thermal treatments 

      Luis Pérez, Carmelo Upna; Luri Irigoyen, Rodrigo Upna; León Iriarte, Javier Upna; Puertas Arbizu, Ignacio Upna; Salcedo Pérez, Daniel Upna; Pérez Ruiz, Iván (Hindawi, 2014)   Artículo / Artikulua  OpenAccess
      This work presents a study related to the achievement of a nanometric structure in AA3103, employing severe plastic deformation processes (SPD), in this case equal channel angular pressing (ECAP). The changes in the ...
    • Experimental modelling of critical damage obtained in Al-Mg and Al-Mn alloys for both annealed state and previously deformed by ECAP 

      Luri Irigoyen, Rodrigo Upna; Fuertes Bonel, Juan Pablo Upna; Luis Pérez, Carmelo Upna; Salcedo Pérez, Daniel Upna; Puertas Arbizu, Iñaki Upna; León Iriarte, Javier Upna (Elsevier, 2016)   Artículo / Artikulua  OpenAccess
      Assessing the damage produced in plastic deformation processes permits the optimum manner to shape a material that could avoid any cracks from appearing. In this present research work, the absolute critical damage in ...
    • Manufacturing of nanostructured rings from previously ECAE-processed AA5083 alloy by isothermal forging 

      Luis Pérez, Carmelo Upna; Salcedo Pérez, Daniel Upna; León Iriarte, Javier Upna; Puertas Arbizu, Ignacio Upna; Fuertes Bonel, Juan Pablo Upna; Luri Irigoyen, Rodrigo Upna (Hindawi, 2013)   Artículo / Artikulua  OpenAccess
      The manufacturing of a functional hollow mechanical element or ring of the AA5083 alloy previously equal channel angular extrusion (ECAE) processed, which presents a submicrometric microstructure, is dealt with. For this ...
    • Mechanical properties analysis of an Al-Mg alloy connecting rod with submicrometric structure 

      León Iriarte, Javier Upna; Salcedo Pérez, Daniel Upna; Murillo Crespo, Óscar; Luis Pérez, Carmelo Upna; Fuertes Bonel, Juan Pablo Upna; Puertas Arbizu, Iñaki Upna; Luri Irigoyen, Rodrigo Upna (MDPI, 2015)   Artículo / Artikulua  OpenAccess
      Over these last few years, there has been a growing interest in developing mechanical components from submicrometric materials due to the significant improvement that these materials present compared to their original ...
    • A proposal of a constitutive description for aluminium alloys in both cold and hot working 

      León Iriarte, Javier Upna; Luis Pérez, Carmelo Upna; Fuertes Bonel, Juan Pablo Upna; Puertas Arbizu, Iñaki Upna; Luri Irigoyen, Rodrigo Upna; Salcedo Pérez, Daniel Upna (MDPI, 2016)   Artículo / Artikulua  OpenAccess
      The most important difficulties when the behaviour of a part that is subjected to external mechanical forces is simulated deal with the determination of both the material thermo-mechanical properties and its boundary ...
    • Revisión de las aplicaciones de la electroerosión por penetración al mecanizado de cerámicas conductoras 

      Puertas Arbizu, Iñaki Upna; Luis Pérez, Carmelo Upna (CENIM, 2002)   Artículo / Artikulua  OpenAccess
      El término de materiales cerámicos técnicos o materiales cerámicos avanzados se aplica a una gama emergente de materiales, que tienen unas propiedades excelentes de dureza, resistencia al desgaste, resistencia mecánica, ...