生产手机外壳需要经过一系列的工序才能完成，最主要的工序就是加工生产。加工生产包括对外壳进行锻压、拉伸、冲压、注塑等工艺操作。如何能够快速准确的完成这些工序，才能保证生产出高质量的产品。

　　第一步，锻压工艺。锻压是将金属材料压缩成所需形状的过程。这一步骤的关键在于选择合适的工具和材料，以及控制压力和速度。

　　第二步，拉伸工艺。拉伸是将金属材料拉长或撕裂成所需形状的过程。这一步骤的关键在于选择合适的工具和材料，以及控制压力和速度。

　　第三步，冲压工艺。冲压是将金属材料压缩成所需形状的过程。这一步骤的关键在于选择合适的工具和材料，以及控制压力和速度。

　　第四步，注塑工艺。注塑是将塑料材料压入模具中成型的过程。这一步骤的关键在于选择合适的工具和材料，以及控制压力和速度。

　　以上就是实现快速准确加工生产手机外壳的过程。只有经过精密的工艺加工，才能保证生产出高质量的产品。

　　The mobile phone shell needs to go through a series of processes to be completed, the most important process is machining production. Machining production includes forging, stretching, stamping, injection molding and other process operations on the casing. How to quickly and accurately complete these processes can ensure the production of high-quality products.

　　The first step, forging process. Forging is a process of compressing metal materials into the required shape. The key to this step is to select the appropriate tool and material, and to control the pressure and speed.

　　The second step, stretching process. Stretching is a process of elongating or tearing metal materials into the required shape. The key to this step is to select the appropriate tool and material, and to control the pressure and speed.

　　The third step, stamping process. Stamping is a process of compressing metal materials into the required shape. The key to this step is to select the appropriate tool and material, and to control the pressure and speed.

　　The fourth step, injection molding process. Injection molding is a process of injection plastic materials into the mold. The key to this step is to select the appropriate tool and material, and to control the pressure and speed.

　　The above is the process of quickly and accurately machining the mobile phone shell. Only through precise machining can we ensure the production of high-quality products.