金属零件的一种快速成型制造方法

A New Technology for Rapid Prototyping Manufacturing of Metal Parts

金属零件的快速制造是快速成型技术的最终目标之一 ,也是当今快速成型领域的一大研究热点。本文在介绍快速成型技术的一个重要分支——选区激光烧结的基础上 ,提出了一种基于小功率激光快速成型系统的金属零件成型工艺。这种方法首先烧结金属与有机粘结剂的混合粉末 ,生成“绿件”,而后除粘、熔渗金属 ,最终得到致密的金属件。最后 ,文中给出了加工实例 。

As a key technology for rapid prototyping & manufacturing (RPM), rapid manufacturing of metal parts is a target of RPM. Introducing selective laser sintering (SLS), an important branch of RPM, this paper gives a new method oriented on low power SLS system to fabricate metal parts. By using this kind of technology, the mixture of metal and polymer powder is sintered to get 'Green Part', then, after debinding and infiltrating metal, dense parts are obtained. Finally influencing factors of the technology are analyzed and an application example is given.