精密铸铝腔体外壳的制作技术是制造业的先锋技术，它的出现使得铸铝造型工艺得到了长足的发展，并且使得铸铝制品的质量和精度得到了显著提高。精密铸铝腔体外壳生产工艺是将铸铝型件精密加工成外壳的一种技术，它包括对铸件表面进行预处理、精密铸造、冷却和热处理等工序。

　　铸铝型件的表面预处理是精密铸造工艺的关键工序，它的质量直接关系到整个外壳的质量。预处理工艺的要求是使铸铝型件表面光滑，无毛刺，并且具有良好的附着性。常见的预处理方法有磨削、打磨、抛光和简单的清洗等。除了对铸铝型件表面进行光滑处理之外，还需要对其进行化学处理，以提高其附着性。

　　精密铸造是将铸件精密加工成外壳的关键工艺，它要求铸件表面光滑、无毛刺，铸造精度高。铸造工艺的关键是保证铸件的内腔完全填充，外壳表面光滑，无毛刺。铸造工艺的常见方法有气压铸造、液压铸造和粉末冶金3D打印等。

　　冷却是铸件精密加工成外壳的关键工序，它要求铸件表面光滑、无毛刺，冷却速度快。冷却工艺的关键是使铸件内部的温度均匀，外壳表面光滑，无毛刺。常见的冷却方法有风冷却、水冷却和液体冷却等。

　　热处理是铸件精密加工成外壳的关键工序，它要求铸件表面光滑、无毛刺，热处理速度快。热处理工艺的关键是使铸件内部的温度均匀，外壳表面光滑，无毛刺。常见的热处理方法有热风焙烧、热油焙烧、气体热处理和真空热处理等。

　　Precision casting aluminum cavity shell technology is the pioneer technology of manufacturing industry, its appearance makes the aluminum casting process got great development, and makes the quality and precision of aluminum products have been significantly improved. The production process of precision casting aluminum cavity shell is a technology to precision machining aluminum casting into shell, it includes surface pre-treatment of casting, precision casting, cooling and heat treatment and other processes.

　　Surface pre-treatment of aluminum casting is the key process of precision casting technology, its quality is directly related to the quality of the whole shell. The requirements of pre-treatment process is to make the surface of aluminum casting smooth, burr free, and with good adhesion. Common pre-treatment methods include grinding, polishing, polishing and simple cleaning. In addition to the smooth surface processing of aluminum casting, it need to be chemically treated to improve its adhesion.

　　Precision casting is the key process of precision machining casting into shell, it requires the surface of casting smooth, burr free, high casting precision. The key of casting process is to ensure that the cavity of casting is completely filled, smooth surface of shell, burr free. Common casting process include pressure casting, die casting, investment casting and powder metallurgy 3D printing.

　　Cooling is the key process of precision machining casting into shell, it requires the surface of casting smooth, burr free, cooling speed. The key of cooling process is to make the temperature inside casting uniform, smooth surface of shell, burr free. Common cooling methods include air cooling, water cooling and liquid cooling.

　　Heat treatment is the key process of precision machining casting into shell, it requires the surface of casting smooth, burr free, heat treatment speed. The key of heat treatment process is to make the temperature inside casting uniform, smooth surface of shell, burr free. Common heat treatment methods include hot air baking, hot oil baking, gas heat treatment and vacuum heat treatment.