Abstract
Formability is one of the critical issues in metal forming processes since it is a limiting factor for the process parameters choice as well as for the attainable part quality. This issue is of even higher importance in processes carried out at elevated temperature, in which more variables are involved, and the temperature changes can influence the material microstructural behavior, which, in turn, influences the fracture occurrence. The work reported in the paper refers to the hot cross wedge rolling process carried out on AA6082 aluminum alloy bars, which was taken as the reference industrial case. A modification of the Oyane fracture criterion providing the dependency on the temperature and strain rate was developed and calibrated by means of hot tensile tests, which were carried out at varying temperature and strain rate spanning the hot temperature range for the given alloy. Material formability changes were identified and modelled. The calibrated fracture criterion was implemented in the FE model of the industrial process and validated by comparing the numerical and experimental outcomes.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
