过去,作为加工成形用的铝合金有:Al-Mg 系的5052、KS5182,Al-Mg-Zn 系的 G4B 及Al-Mg-Si 系的6061合金等,用于制造以磁带录像机壳等为主的电气部件、机壳,或空气过滤器等汽车部件以及其他扫雪机等一般加工成形制品。近来,要求这些部件向“轻、薄、短、小”方向发展,即进一步要求部件壁薄及具有复杂的形状。因此,要求使用的材料要有高的强度和好的加工成形性能,而原有的加工成形 In the past, Al-Mg-based 5052, KS5182, Al-Mg-Zn-based G4B, and Al-Mg-Si-based 6061 alloys have been used as the aluminum alloy for forming. Electrical parts, chassis, or air filters and other automotive parts and other snow plows and other general processing of shaped products. Recently, these components are required to be “light, thin, short, small” direction, which further requires thin wall parts and complex shapes. Therefore, the required materials used to have high strength and good formability, and the original forming process