RT Journal Article
T1 Stretch-flanging of AA2024-T3 sheet by single-stage SPIF
A1 López-Fernández, José Andrés
A1 Centeno Báez, Gabriel
A1 Martínez-Donaire, Andrés Jesús
A1 Morales-Palma, Domingo
A1 Vallellano Martín, Carpóforo
K1 Materiales - Fatiga
K1 Chapa metálica
AB Flanging is a forming process that is commonly used in many high technology industrial applications such as the manufacturing of thin-walled aircraft structures as wing ribs that are formed using rubber-pad forming during the last forming stages with the aim of increasing the stiffness of the component edges. In addition, the performance of hole-flanged parts manufactured using incremental sheet forming (ISF) processes has been recently addressed, focusing especially in evaluating the formability enhancement, as well as the onset of failure utilising a variety of forming strategies. In this context, this work presents an experimental analysis of formability and failure within the forming limit diagram (FLD) of stretch flanges of AA2024-T3 performed by single point incremental forming (SPIF) for a wide range of process parameters. The numerical modelling of the stretch flanging process in combination with a theoretical framework based on Barlat’s anisotropy plasticity criterion, allowed to assess the formability of the material within the triaxiality space, permitting to understand the stress/strain states attained in SPIF and the forming conditions upon which the onset of failure occurs. The results show that this triaxiality space, defined as the accumulative effective strain versus the average stress triaxiality, might be the most appropriated space for analysing the highly non proportional process of stretch flanging by SPIF.
PB Elsevier
YR 2021
FD 2021
LK https://hdl.handle.net/10630/46395
UL https://hdl.handle.net/10630/46395
LA eng
NO López-Fernández, J.A.; Centeno, G.; Martínez-Donaire, A.J.; Morales-Palma, D.; Vallellano, C. Stretch-flanging of AA2024-T3 sheet by single-stage SPIF. Thin-Walled Structures, 160, 107338, 2021. DOI: 10.1016/j.tws.2020.107338.
NO Accepted Manuscript depositado en RIUMA.
NO Gobierno de España
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 28 abr 2026