快速成型制造技术，英文：RAPID PROTOTYPING，简称RP技术； 是二十世纪九十年代发展起来的一项先进制造技术，对促进企业产品创新、缩短新产品开发周期、提高产品竞争力有积极的推动作用。自该技术问世以来，已经在发达国的制造业中得到了广泛应用，并由此产生一个新兴的技术领域。
Rapid prototyping (RP) is an advanced manufacturing technology developed in the 1990s, which plays a positive role in promoting product innovation, shortening the development cycle of new products and improving product competitiveness. Since the technology came out, it has been widely used in the manufacturing industry of developed countries, and a new technology field has emerged.
The appearance design of many products, especially household appliances and automobiles, has high requirements for the appearance of beauty and novelty. The traditional method of shape inspection is to display the product graphics on the computer terminal, but the phenomenon of "drawing looks good but making looks bad" often occurs. Using RP technology can quickly make the prototype for designers and users to review, making the shape design and inspection more intuitive, effective and fast.
Design inspection takes mold manufacturing as an example. The traditional method is to process on the numerical control machine according to the geometric modeling, which is too risky for a complex mold worth hundreds of thousands or even hundreds of thousands of yuan. Any careless reflection on the design to the mold is an irreparable loss. RP method can truly and accurately produce prototype parts before mold opening, and all kinds of subtle features and errors in design can be clearly displayed on the model, which greatly reduces the risk of mold repair and mold opening.
Functional test designers can use the prototype to quickly perform functional test to determine whether it meets the design requirements, so as to optimize the product design. For example, the design of fan and air drum can obtain very good blade surface and low noise structure.
Touchability through the prototype, people can touch and feel the entity, which is very important for the shape design of cameras and hand-held electric tools, which has a wide range of significance in the application of ergonomics.
Assembly interference inspection is a complex system in limited space, so it is very important to carry out assembly interference inspection. Prototype can be used for assembly simulation to observe how the workpieces cooperate and interact with each other. For example, the exhaust pipe of automobile engine, because of its complicated installation relationship, can be successfully designed at one time through prototype assembly simulation.
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