1、 There are three differences between CNC machining and 3D printing:
Manual processing mainly includes CNC machining, 3D printing, copying, rapid tooling, etc. Today, Nuoba will tell you what is the difference between CNC machining and 3D printing. First of all, we should know that 3D printing is an additive technology, while CNC processing is a material reduction technology, so they are very different in terms of materials.
CNC processing of aluminum alloy parts
1. Differences in processing materials
The materials for 3D printing mainly include liquid resin, nylon powder, metal powder, etc. These three different materials occupy most of the industrial 3D printing market; The materials used for CNC machining are all sheet materials one by one, and the materials selected for CNC machining are more than those for 3D printing. General metal plastic sheets can be CNC machined, and the density of formed parts is better than that of 3D printing.
2. Different machining precision
The 3D printed hand board is rough and low in accuracy; The precision of the hand board processed by CNC is high, which can generally reach ten threads. The precision of the metal hand board processed by high-speed drilling and tapping center can be reached.
3d printing model
3. Different processing ranges
The 3D printing process is mainly made of plastic materials, such as photosensitive resin, ABS, etc., and its processing range is relatively limited, generally no more than 600mm. If it is larger than this size, it needs to be disassembled for printing. The cost of printing such a large prototype is also very high; The materials processed by CNC are quite extensive. It can process almost all plastics and metals, and the travel is also quite large. It is known that all of them are more than 1 meter. For example, gantry machine tools can even process the whole piece to a range of two to three meters.
