Structure and property evolution during drawing and wall ironing of aluminum alloy 3004

The evolution of mechanical properties and dislocation substructure during the commercial-scale can making (deep drawing, wall ironing, and “baking”) operations of the aluminum alloy 3004 H19 has been investigated. At each stage the samples were obtained from the deep-drawn cup or wall-ironed can wall and subjected to tensile tests and transmission electron microscopy characterization. The strength decreased (and ductility increased) during …