AL-CU ALLOY AND METAL MOLD CASTINGS

摘要: PURPOSE:To obtain an Al-Cu alloy improved in castability and capable of manufacturing metal mold castings with thin-walled parts without deteriorating strength toughness, by providing a composition containing Cu, Si, Mg, Fe, Mn, Ti Zn each prescribed percentage having the balance Al inevitable impurities. CONSTITUTION:The has consisting of, weight, 4.0-5.0% 0.5-1.5% 0.03-0.20% <=0.35% <=0.30% 0.05-0.30% Ti, Zn, The made above is suitable for requiring high-speed toughness further they enable lightening weight.