随着cnc加工技术的不断成熟，许多高科技产品的外壳都采用CNC加工制造。CNC加工能够实现对产品外壳的高精度、高速度加工，保证产品的精密度和外观质量。那么，如何利用CNC加工技术高质量制造外壳呢？

　　1.在设计外壳时，要考虑产品的整体外形尺寸和形状，以及零部件的尺寸和位置。设计师需要根据产品的功能和使用环境，选择合适的材料和工艺，并考虑到CNC加工的特点和限制，设计出合理的外壳。

　　2.选择材料时，要根据产品的使用环境和功能，选择合适的材料。一般来说，机械产品外壳的材料要求耐磨、耐冲击、耐腐蚀、耐高温，而光学产品外壳的材料要求耐高温，并具有较好的硬度、刚度和抗冲击性。此外，还需要考虑材料的机械性能、导电性、热传导性、耐磨性、抗冲击性、阻燃性、耐腐蚀性和耐热性。

　　3.在设计外壳时，应考虑外壳的结构、工艺和性能等因素，该设计将直接影响外壳的成本、交付时间和质量。外壳的结构一般分为单壳和双壳两种。单壳一般由一块板材剪切而成，而双壳则是由两块不同板材密封而成。外壳的工艺一般有注塑、铸造、冲压和热成型等。外壳的性能一般包括防水性、防尘性、防护性、耐磨性和耐冲击性等。

　　4.在CNC加工外壳时，应充分考虑机械性能、导电性、热传导性、耐磨性、抗冲击性、阻燃性、耐腐蚀性和耐热性。

　　机械性能是CNC加工外壳的基本性能，导电性和热传导性是CNC加工外壳的主要性能。耐磨性和抗冲击性是CNC加工外壳的次要性能。阻燃性和耐腐蚀性是CNC加工外壳的特殊性能。耐热性是CNC加工外壳的附加性能。

　　With the continuous maturity of CNC machining technology, the shell of many high-tech products is manufactured by CNC machining. CNC machining can realize high-precision and high-speed machining of product shells, so as to ensure the precision and appearance quality of products. So how to use CNC machining technology to manufacture high-quality shells?

　　1. In the design of the shell, the overall size and shape of the product, as well as the size and position of the parts, should be considered. Designers need to choose appropriate materials and processes according to the function and use environment of the product, and take into account the characteristics and limitations of CNC machining, so as to design a reasonable shell.

　　2. When choosing materials, appropriate materials should be selected according to the use environment and functions of the products. Generally speaking, the materials of mechanical product shells should be wear-resistant, impact-resistant, corrosion-resistant and high-temperature resistant, while the materials of optical product shells should be high-temperature resistant, and have good hardness, stiffness and impact resistance. In addition, the mechanical properties, conductivity, heat conductivity, wear resistance, impact resistance, flame retardancy, corrosion resistance and heat resistance of the materials need to be considered.

　　3. In the design of the shell, factors such as structure, process and performance of the shell should be considered. This design will directly affect the cost, delivery time and quality of the shell. The structure of the shell is generally divided into two types: single shell and double shell. The single shell is usually cut from a single piece of plate, while the double shell is sealed by two different plates. The process of the shell is generally injection molding, casting, stamping and thermoforming. The performance of the shell generally includes water resistance, dust resistance, protection, wear resistance and impact resistance.

　　4. In the process of CNC machining the shell, the mechanical properties, conductivity, heat conductivity, wear resistance, impact resistance, flame retardancy, corrosion resistance and heat resistance should be fully considered.

　　Mechanical properties are the basic properties of CNC machined shells, and conductivity and heat conductivity are the main properties of CNC machined shells. Wear resistance and impact resistance are the secondary properties of CNC machined shells. Flame retardancy and corrosion resistance are the special properties of CNC machined shells. Heat resistance is an additional property of CNC machined shells.