As a widely used alloy material in the industrial field, 3004 aluminum sheet is favored in many industries because of its excellent mechanical properties, good processing properties, and excellent corrosion resistance. It belongs to Al-Mg-Mn anti-rust aluminum alloy and cannot be strengthened by heat treatment. Therefore, the mechanical properties are improved by cold processing. In the annealing state has a high plasticity, in the semi-cold hardening plasticity is good, cold hardening plasticity is reduced, poor machinability.
