CAPP系统中三维制造特征提取关键技术的研究

Research on Key Technology of Feature Extraction

特征提取技术对继承已有的设计资源以及实现设计与制造的集成具有重要的意义。为了将CAD系统中的设计特征转化为CAPP系统中制造特征,提出了伪制造特征的概念,并对其进行了定义。在此基础上介绍了如何从CAD系统中提取伪制造特征以及如何将伪制造特征映射为工艺设计中的制造特征,为后续工艺自动规划做准备。

Feature extraction technology is a great significant technology for inheriting the existing design resources and integrating design and manufacture. In order to turn the design feature to machining feature, this paper defines the notion of the fabricated machining feature and on this basis, introduces the technique crux and realization method in which the fabricated machining feature is extracted from CAD system the fabricated machining feature is mapped into the machining feature.