The idea of 3D printing originated in the United States at the end of 19, also known as 3D printing or rapid prototyping technology. Due to the technical conditions at that time, it was not further developed and popularized until the 1980s. After decades of development and continuous improvement, 3D printing technology has developed from the earliest photocuring process to a variety of processes for manufacturing rapid prototyping products, such as fused deposition molding process (FDM process), selective laser sintering process (SLS process) and 3D printing process (3DP process). Among them, 3D printing technology using laser sintering technology and fused deposition molding technology can directly generate various parts from computer graphic data, without mechanical processing and any mold, which saves production cost and research and development time and greatly improves production efficiency, so it has been widely used in mechanical parts, jewelry molds, customized products, medical organs and other fields.