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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.
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.
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.
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.
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.
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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