The Rapid prototyping technology is based on the discrete/stacking principle. According to the 3D CAD model, the CAD model is layered according to a certain thickness, and the 3D model is transformed into a 2D plane model with very thin thickness. Then, the two-dimensional model is subjected to data processing, processing parameters are added, and each thin layer is continuously processed in a planar machining manner under the control of the CNC system, and bonded to form. There are many process methods for Rapid prototyping. All Rapid prototyping methods manufacture parts layer by layer. The difference is that each method uses different materials and different bonding methods. Typical Rapid prototyping technologies include photocurable Rapid prototyping (SLA), fused deposition (FDM), laser powder sintering (SLS), and laminated contour (LOM).
Compared with traditional processing methods, Rapid prototyping technology has obvious advantages in speed, integration, applicability, adjustability and automation. For example, the Rapid prototyping technology has realized complete automatic molding. Only the operator needs to input relevant parameters, and the automatic operation of the whole process can be realized without too much interference.
In recent years, Rapid prototyping technology has been greatly developed. It involves a wide range of fields and has many applications, mainly in industrial manufacturing, construction industry, medical field, art creation, archaeological research, aerospace and other fields.
With the development of Rapid prototyping technology, it is widely used in mold manufacturing process. This technology can be used for rapid trial production of new products, and the production cycle is only about 1/4 of traditional technology, which can effectively improve the one-time success rate of mold manufacturing. This technology integrates the conceptual design and production process of molds in a CAD system, utilizing computer simulation analysis to form a new type of mold design and manufacturing system. Without the need for CNC cutting, complex surfaces and other structures can be manufactured, which is conducive to improving the manufacturing flexibility and quality of molds.