2026-04-07T12:56:52Zhttps://ebiltegia.mondragon.edu/oai/request

oai:ebiltegia.mondragon.edu:20.500.11984/58472024-03-05T11:40:58Zcom_20.500.11984_1143col_20.500.11984_1148

Simulation of Cold Forging Processes Using a Mixed Isotropic-Kinematik Hardening Model GALDOS, Lander Agirre, Julen Otegi, Nagore Mendiguren, Joseba Sáenz de Argandoña, Eneko Cold forging Numerical simulation Mixed hardening law 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 operations to get tight tolerances. Because materials to be formed are increasingly harder and the geometrical complexity is greater, the finite element simulation is becoming an essential tool for process design. This study proposes the use of the Chaboche hardening model for the cold forging simulation of a 42CrMoS4Al material industrial automotive ball pin. The material model has been fitted with experimental data obtained from cyclic torsion tests at different reversal plastic strains as well as monotonic torsion tests at different strain rates. Comparison between the classical isotropic hardening and the new mixed hardening model are presented for the different forging steps. 2022-11-11T16:33:06Z 2022-11-11T16:33:06Z 2021 http://purl.org/coar/resource_type/c_c94f 978-3-030-75381-8 https://katalogoa.mondragon.edu/janium-bin/janium_login_opac.pl?find&ficha_no=165034 https://hdl.handle.net/20.500.11984/5847 eng © 2021 The Minerals, Metals & Materials Society Springer