3D printing technology is also known as additive manufacturing technology, or additive manufacturing and incremental manufacturing technology. The American Society for Testing and Materials has clearly defined 3D printing technology, and 3D printing technology is very different from current traditional processing methods. This technology is a layer-by-layer process for materials using 3D CAD forming technology. It is a three-dimensional physical solid model processing method using direct manufacturing and 3D model technology. 3D printing technology includes rapid prototyping in material processing and rapid manufacturing associated printing processes in the production process.