METHOD OF PRODUCING A SHAPED AL ALLOY PANEL FOR AEROSPACE APPLICATIONS

摘要

The invention relates to a method of producing a shaped aluminium alloy panel, preferably for aerospace or automotive applications, from 5000-series alloy sheet, the method comprising the steps of: providing a sheet made of 5000-series alloy having a thickness of about 0.05 to 10mm and a length in the longest dimension of at least 800mm; and stretch forming the sheet at a forming temperature between - 100°C and -25°C, to obtain a shaped aluminium alloy panel. The invention is also directed to a shaped article formed by the above method.