快速原型制造技术(RPM)能直接从CAD系统中产生3维产品,开辟了不用刀具而制作各类零件的新途径.这些技术大大地推动了工业界现行的原型技术,极大地缩短了新产品的研制周期,大幅度降低了生产成本,本文对几种常用的RPM技术进行了比较,并分析了它们共同存在的一些问题. Rapid Prototyping (RPM), a direct 3-D product from CAD systems that opens up new avenues for tooling-free production of parts and components, has greatly advanced the industry’s current prototyping technology and dramatically shortened new product offerings Of the development cycle, a substantial reduction in production costs, this paper compares several commonly used RPM technology, and analyzes some of their common problems.