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).

与传统的处理方式相比，快速成型技术在速度性、集成化、适用性、可调整性和自动化等方面具有明显优势。比如：快速成型技术实现了完全的自动化成型，只需操作员输入相关的参数，在不需要过多干涉的情况下，就可以实现整个过程的自动运转。

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.

更近几年，快速成型技术得到了极大发展，其涉及的领域广泛，应用行业众多，主要集中在工业制造、建筑行业、医学领域、艺术创造、考古研究、航空空间等领域。

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.

随着快速成型技术的发展，其被广泛应用于模具制造过程中。该技术可以进行新产品的快速试制，制作周期仅为传统技术的1/4左右，可以有效提升模具制造的一次成功率。该技术是将模具的概念设计和生产工艺在CAD系统能进行综合，利用计算机的模拟分析形成新型的模具设计制造系统，无需数控切削加工就可以制造出复杂的曲面等结构，有利于提高模具的制造柔性和质量。

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.