Browsing Kongresuak-Ingeniaritza by Author "715226aa2bdf5e33d203ccf8c92360d8"
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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 ... -
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 ... -
Effect of near beta-transus forging parameters on the mechanical and microstructural properties of Ti-6Al-4V: Application to hammer forging
Agirre, Julen; Erice, Borja; Arrese Irazabal, Peio; GALDOS, Lander (Materials Research Forum LLC., 2023)Ti-6Al-4V is a widely employed material in the aerospace, power generation and bioengineering industries due to its low density, excellent corrosion resistance and outstanding mechanical properties. Hammer forging is one ... -
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 ... -
Perfilado 4.0: ayuda a la puesta a punto y aseguramiento de la calidad en procesos de perfilado
Sáenz de Argandoña, Eneko; GALDOS, Lander; Mendiguren, Joseba; Reguera-Bakhache, Daniel; Garitano, Iñaki (2019)Una problemática a la que se enfrentan las empresas de perfilado de chapa es la laboriosa, y con ello costosa, puesta a punto del proceso. En ella los operarios basan sus decisiones en experiencias pasadas y en la mayoría ... -
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 ...