The trend of wrought aluminium alloys for automobiles in Japan were reviewed. In this decade, the demand of aluminium in automobiles has grown up to 6 or 7 percent of the automobile raw materials. In particular, the use of wrought aluminium alloys has increased. The aluminium alloy sheets were applied for body panels, such as hood, trunk rid, doors and so on. Extrusions were used for bumper reinforcements, ABS and forgings for air bags and various arms. In heat exchangers, condensers and evaporators for air conditioners were almost made of wrought aluminium alloys now. Hereafter, the demand for radiators or heater-cores are expected to increase rapidly. In new aluminium materials, rapidly solidified powder metallurgy alloys, superplastic aluminium alloys, aluminium honeycomb panels are noticed respectively in high resistance for heat or wear, in integrated forming and cost saving, in high rigidity and lightweight. In future, it is predicted that the aluminization in automobiles will develop because of fuel cost, environmental problems and recycling.
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