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    • Abiadura handiko entseguak egiteko forjaketa-mailu baten garapena 

      Agirre, Julen; Otegi, Nagore; GALDOS, Lander; Arrese Irazabal, Peio (UEU, 2021)
      Hammer forging is a widely employed manufacturing process to produce parts with excellent mechanical properties. In order to achieve an optimal process design, finite element modelling is broadly utilized in industry and ...

    • An automatic thermo-mechanical testing apparatus for metal forming applications 

      Agirre, Julen; Abedul Moreno, David; Sáenz de Argandoña, Eneko; Otegi, Nagore; GALDOS, Lander; Erice, Borja (Elsevier, 2023)
      Dynamic testing of materials is necessary to model high-speed forming processes (e.g. hammer forging, blanking, forming, etc.) and crash/impact behaviour of structures, amongst others. The most common machines to perform ...

    • Characterization of Ti64 forging friction factor using ceramic coatings and different contact conditions 

      GALDOS, Lander; Mendiguren, Joseba; Sáenz de Argandoña, Eneko; Agirre, Julen (Elsevier, 2017)
      Hot forging processes are highly influenced by the contact conditions between the billet and the dies. A wrong definition of the contact conditions may lead to wrong predictions of the final component geometry, the quantity ...

    • Hardening prediction of diverse materials using the Digital Image Correlation technique 

      Agirre, Julen; Mendiguren, Joseba; GALDOS, Lander; Sáenz de Argandoña, Eneko (Elsevier, 2018)
      In recent years, due to the introduction of higher resistance materials in the automotive sector, sheet metal-forming tool-makers have been forced to deal with more challenging process designs. Therefore, the optimisation ...

    • High-Speed Material Characterization Using an Instrumented Forging Hammer 

      Agirre, Julen; Abedul Moreno, David; Oruna Otalora, Angel; GALDOS, Lander (Springer, 2021)
      Hammer forging is a widely employed manufacturing process to produce parts with excellent mechanical properties. Although the rheological behavior and the microstructural transformation phenomena of metals under hammer ...

    • Hole expansion test of third generation steels 

      Agirre, Julen; Mendiguren, Joseba; GALDOS, Lander; Sáenz de Argandoña, Eneko (AIP Publishing, 2017)
      The trend towards the implementation of new materials in the chassis of the automobiles is considerably making more complex the manufacturing of the components that built it up. In this scenario materials with higher ...

    • Monitoring of a Hammer Forging Testing Machine for High-Speed Material Characterization 

      Agirre, Julen; Otegi, Nagore; Abedul Moreno, David; Oruna Otalora, Angel; GALDOS, 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 ...

    • Simulation of Cold Forging Processes Using a Mixed Isotropic-Kinematik Hardening Model 

      GALDOS, Lander; Agirre, Julen; Otegi, Nagore; Mendiguren, Joseba; Sáenz de Argandoña, Eneko (Springer, 2021)
      Cold forging is a manufacturing process where a bar stock is inserted into a die and squeezed with a second closed die. It is one of the most widely used chipless forming processes, often requiring no machining or additional ...

    • Study on the influence of the springback on the hole expansion ratio characterization 

      Zubia, Biotza; Mendiguren, Joseba; GALDOS, Lander; Sáenz de Argandoña, Eneko; Agirre, 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 ...