Now showing items 21-29 of 29

    • On the accurate characterization of the drawbead up-lift forces 

      Gil Acedo, Imanol; Galdos Errasti, Lander; Otegi Martínez, Nagore; Mendiguren Olaeta, Joseba; Saénz de Argandoña, Eneko (IOP Publishing Ltd., 2018)
      The competitiveness of the automotive sector has led to a high demand of accuracy and reduction in lead-time of the deep drawing tool making process. In that regard, the numerical simulation of the deep drawing process has ...
    • Optimization of superplastic forming production of Al-5083-SPF parts via finite element analysis 

      Otegi Martínez, Nagore (Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)
      For the aerospace industry, improving the fuel efficiency and emissions profile of aircraft is a major area of focus. Thereby, research is centred in the study and development of lightweight materials and in fabrication ...
    • Press hardening of alternative materials: conventional high- strength steels 

      Mendiguren Olaeta, Joseba; Herrero Dorca, Nuria; Galdos Errasti, Lander; Saénz de Argandoña Fernández de Gorostiza, Eneko (Springer Nature, 2017)
      he increase in strength of new high strength steels(HHS) and advanced high strength steels (AHHS) has led toforming issues, such as high springback, low formability, increase of forming forces and tool wear. These problems ...
    • Roll levelling semi-analytical model for process optimization 

      Silvestre Soriano, Elena; Galdos Errasti, Lander; Saénz de Argandoña Fernández de Gorostiza, Eneko; Mendiguren Olaeta, Joseba (IOP, 2016)
      Roll levelling is a primary manufacturing process used to remove residual stresses and imperfections of metal strips in order to make them suitable for subsequent forming operations. In the last years the importance of ...
    • Semisolid forging of steel components for automotive industry 

      Lozares Abasolo, Jokin (Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2013)
      Nowadays, globalisation enables a rapid uptake of the classical manufacturing and production technologies, thus making it much harder for European companies to compete with low labour costs of emerging countries. In order ...
    • Sensitivity analysis on an AC600 aluminum skin component 

      Mendiguren Olaeta, Joseba; Saénz de Argandoña Fernández de Gorostiza, Eneko; Galdos Errasti, Lander; Mugarra Fernandez, Endika (IOP, 2016)
      New materials are been introduced on the car body in order to reduce weight and fulfil the international CO2 emission regulations. Among them, the application of aluminum alloys is increasing for skin panels. Even if these ...
    • Study on the influence of the springback on the hole expansion ratio characterization 

      Zubia Arrizabalaga, Biotza; Mendiguren Olaeta, Joseba; Galdos Errasti, Lander; Saénz de Argandoña Fernández de Gorostiza, Eneko; Agirre Bikuña, Julen (Whioce Publishing, 2018)
      Material formability has become one of the main problems, together with the springback, when stamping high added-value components for the automotive industry. The pursuit of weight reduction has led to higher strength ...
    • Temperature dependent high strain rate deformation mechanisms in AZ31B MG alloy and coupled numerical modeling of electromagnetic forming process 

      Ulacia Garmendia, Ibai (Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2009)
      En la presente tesis doctoral se estudia la deformación de la aleación de magnesio AZ31B a altas velocidades de deformación y diferentes temperaturas. En un primer apartado, se ha caracterizado el comportamiento mecánico ...
    • Warm tube hydroforming of 6082 aluminium alloy 

      Torca de la Concepción, Ireneo (Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2011)
      Nowadays, the requirements demanded to many of the parts used in such industries as the aeronautic or the automotive industry are increasingly higher: more complex shapes, previously unimaginable, lower and lower radii, ...