• 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 ...
    • Accurate drawbead modeling in stamping simulations 

      Sáenz de Argandoña, Eneko (IOP Publishing, 2016)
      An adaptive line bead model that continually updates according to the changing conditions during the forming process has been developed. In these calculations, the adaptive line bead's geometry is treated as a 3D object ...
    • Analysis of different inhibitors for magnesium investment casting 

      Herrero-Dorca, Nuria; Hurtado, Iñaki; Arruebarrena, Gurutze; Sarriegi Etxeberria, Haritz (IOP Publishing, 2011)
      Investment casting of magnesium is a well suited process for the production of aeronautic and automotive components. But still, this process has not been properly developed. One reason for that are the reactions between ...
    • 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 ...
    • Contact pressure and sliding velocity ranges in sheet metal forming simulations 

      Cillaurren Arriaga, Joseba; GALDOS, Lander; Sanchez Palomar, Mario; Zabala, Alaitz; Sáenz de Argandoña, Eneko; Mendiguren, Joseba (2021)
      In the last few years many efforts have been carried out in order to better understand what the real contact between material and tools is. Based on the better understanding new friction models have been developed which ...
    • Contact pressure, sliding velocity and viscosity dependent friction behavior of lubricants used in tube hydroforming processes 

      GALDOS, Lander; Otegi, Nagore; Mendiguren, Joseba; Trinidad Naranjo, Javier; Sáenz de Argandoña, Eneko (2021)
      The final quality of sheet and tube metal formed components strongly depends of the tribology and friction conditions between the tools and the material to be formed. Furthermore, it has been recently demonstrated that ...
    • Design of a new simulative tribotest for warm forming applications having high contact pressure and surface enlargement 

      GALDOS, Lander; Agirre, Julen; Aranburu Eziolaza, Elixabet (Materials Research Forum LLC., 2023)
      Many tribological tests have been developed in the last decades to emulate real cold forging processes at laboratory conditions and to obtain friction coefficients at different process conditions. In this paper a new ...
    • Digital twin development for the sensitivity analysis of near solidus forming process 

      Sajjad, Muhammad; Plata, Gorka; Mendiguren, Joseba (Materials Research Forum LLC, 2023)
      Near Solidus Forming (NSF) process, performed at semi-solid material state is gaining popularity due to its good physical properties, low manufacturing cost and material waste. Although the process possesses many advantages ...
    • 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 ...
    • Initiation of dynamic recrystallization of as-cast N08028 alloy 

      Mora Serrano, Elena; Mendiguren, Joseba; Hurtado, Iñaki (ESAFORM, 2021)
      The use of high nickel content austenitic stainless steels (SASS) has significantly increased in the last decade. The corrosion and high fatigue resistance of these materials make them suitable for manufacturing oil country ...
    • Roll levelling semi-analytical model for process optimization 

      Silvestre Soriano, Elena; GALDOS, Lander; Sáenz de Argandoña, Eneko; Mendiguren, 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 ...
    • Sensitivity analysis on an AC600 aluminum skin component 

      Mendiguren, Joseba; Sáenz de Argandoña, Eneko; GALDOS, 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 ...
    • 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 ...
    • Zeharkako ebaketa prozesuaren parametroen eragina erresistentzia handiko altzairuzko xafla lodietan 

      Abedul Moreno, David; GALDOS, Lander; Sáenz de Argandoña, Eneko (UEU, 2021)
      Transversal cutting processes are usually employed for metal coil cutting or precut reduction operations. The final result of a cutting operation, in terms of sheared edge quality and process forces, is dependent on the ...