加工：CNC加工是一种常用的手板模型加工工艺，特点是精度高、加工速度快、适用于各种材料。通过数控机床将设计好的CAD模型转化为实际零件，可以实现复杂形状和精确尺寸的加工。CNC加工的成本相对比较高，适用于有较高精度要求的手板模型制造。

Machining: CNC machining is a commonly used handmade model machining process, characterized by high precision, fast processing speed, and suitability for various materials. By using CNC machine tools to convert designed CAD models into actual parts, complex shapes and precise dimensions can be machined. The cost of CNC machining is relatively high, making it suitable for manufacturing hand models with high precision requirements.

打印：3D打印是一种逐层堆叠材料来制造物体的加工技术，具有快速、灵活、可定制化的特点。3D打印可以用于制造多种材料的手板模型，如塑料、金属等。3D打印的精度和强度相对较低，不适合制造高精度要求的手板模型，但对于形态复杂、结构简单的模型，3D打印可以提供较好的解决方案。

Printing: 3D printing is a processing technique that involves stacking materials layer by layer to manufacture objects, with the characteristics of being fast, flexible, and customizable. 3D printing can be used to manufacture prototype models of various materials, such as plastic, metal, etc. The accuracy and intensity of 3D printing are relatively low, making it unsuitable for manufacturing high-precision prototype models. However, for models with complex shapes and simple structures, 3D printing can provide a better solution.

快速铣削：快速铣削是一种以高速切削工具进行材料去除的加工技术，类似于CNC加工。快速铣削的优点是加工速度快，适用于加工各种材料，但相对于CNC加工，其加工精度和表面质量稍差。快速铣削技术适用于手板模型的成本较低、加工周期较短的情况。

Rapid milling: Rapid milling is a machining technique that uses high-speed cutting tools for material removal, similar to CNC machining. The advantage of fast milling is its fast processing speed, which is suitable for processing various materials. However, compared to CNC machining, its machining accuracy and surface quality are slightly inferior. Rapid milling technology is suitable for situations where the cost of hand models is low and the processing cycle is short.

压铸：压铸是一种通过注射成型制造金属或塑料零件的加工工艺。压铸可以实现高精度、大批量、复杂形状的手板模型制造。压铸的成本较高，制造周期相对较长。

Die casting: Die casting is a manufacturing process that uses injection molding to manufacture metal or plastic parts. Die casting can achieve high-precision, large-scale, and complex shape prototype manufacturing. The cost of die casting is relatively high, and the manufacturing cycle is relatively long.

拉伸、深冲：拉伸和深冲是一种将金属片材在模具中通过机械力逐步形成所需形状的加工工艺。这种加工工艺适用于制造薄壁零件和大面积曲面的手板模型。由于模具制造和加工难度较高，成本较高，适用于有特殊要求的手板模型制造。

Stretch and deep drawing: Stretch and deep drawing are processing techniques that gradually form the desired shape of a metal sheet in a mold through mechanical force. This processing technology is suitable for manufacturing thin-walled parts and large-scale curved hand models. Due to the high difficulty and cost of mold manufacturing and processing, it is suitable for the manufacturing of hand models with special requirements.

根据不同的精度要求，我们可以选择合适的加工工艺。对于精度要求较高的手板模型制造，我们可以考虑采用CNC加工或压铸工艺。对于形态复杂、尺寸不那么严格的手板模型制造，可以选择3D打印或快速铣削技术。当然，的选择还要考虑相应的制造成本和制造周期等方面的因素。

According to different precision requirements, we can choose the appropriate processing technology. For the manufacturing of prototype models with high precision requirements, we can consider using CNC machining or die casting technology. For the manufacturing of hand models with complex shapes and less strict dimensions, 3D printing or rapid milling technology can be chosen. Of course, the final choice also needs to consider factors such as corresponding manufacturing costs and manufacturing cycles.

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