Strength enhancement of AlMg sheet metal parts by rapid heating and subsequent cold die stamping of severely cold-rolled blanks

A trade-off between high strength and formability is forcing the automotive industry today to use several different aluminum alloys in structural assemblies. This leads to a reduced recyclability, which ultimately affects the sustainability of the entire product. In this work, it is demonstrated that a severely cold-worked AA5182 sheet metal blank can be formed to a sound part through a heat treatment of 10 s at 300 °C and a subsequent cold die...