Formability and failure mechanisms of AA2024 under hot forming conditions

▶ Forming AA2024 sheet at its solution heat treatment (SHT) temperature is studied. ▶ Formability is shown to be extremely low for AA2024 at the SHT temperature. ▶ The cause of low SHT temperature formability of AA2024 is found by experiment. ▶ An attainable high formability window (temperature and speed) is found for AA2024. ▶ AA2024 formability may be dramatically increased by elevated temperature stamping.