Now showing items 1-5 of 5

    • Drawbead uplift force analytical model for deep drawing operations 

      Gil Acedo, Imanol; Galdos Errasti, Lander; Mendiguren Olaeta, Joseba; Otegi Martínez, Nagore; Saénz de Argandoña, Eneko (IOP Publishing Ltd., 2018)
      Drawbead uplift force calculation has been an open issue among the deep drawing tool maker and software developers in the last years. Starting from the original work of Stoughton (1988) many have been the models presented ...
    • The influence of the kinematic hardening on the FEM simulation of Tension Levelling Process 

      Garcia, Aitor; Trinidad Naranjo, Javier; Otegi Martínez, Nagore; Mendiguren Olaeta, Joseba; Saenz de Argandoña, Eneko; Galdos Errasti, Lander (Elsevier Ltd., 2020)
      Tension levelling is used in the steel industry to remove shape defects present in cold rolled strip. This technology is increasingly being employed by steel makers to level AHSS steels, because conventional roll levelers ...
    • Monitoring of a Hammer Forging Testing Machine for High-Speed Material Characterization 

      Agirre Bikuña, Julen; Otegi Martínez, Nagore; Abedul Moreno, David; Oruna Otalora, Ángel; Galdos Errasti, Lander (Elsevier Ltd., 2020)
      Dynamic testing of materials is necessary to model high-speed forming processes (i.e. hammer forging, blanking) and crash/impact behavior of structures, among others. The most common machines to perform medium to high-speed ...
    • 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 ...