Analysis on machined feature recognition techniques based on B-rep
Analysis on machined feature recognition techniques based on B-rep
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DOI：
10.1016/0010-4485(95)00075-5
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发表时间：
1996-08-01
影响因子：
4.3
通讯作者：
Liu, CR
中科院分区：
文献类型：
--
作者：
Wu, MC;Liu, CR
解决机器特征识别问题已被广泛认为是开发直接连接到CAD系统的自动化工艺规划系统的基石。已经开发了各种识别技术;然而，它们通常缺乏鲁棒性。也就是说，有效的加工特征可能无法被识别，并且被识别的特征在实践中可能无效。本文分析了现有的基于B-rep实体造型的加工特征识别技术，并给出了鲁棒性问题产生的原因。分析了识别加工特征的优缺点。最后，介绍了一种刀具选择方法，称为工艺需求建模，这种方法似乎提供了一个很有前途的方法来解决加工特征识别问题。版权所有（C）1996 Elsevier Science Ltd.
Solving the machine feature recognition problem has been widely recognized as a cornerstone for developing an automated process planning system directly linked to a CAD system. Various recognition techniques have been developed; however, they are in general deficient in robustness. That is, valid machined features may not be recognized and features which are recognized may not be valid in practice. This paper is intended to analyse the existing machined feature recognition techniques, which are based on the B-rep solid modelling scheme, in order to give the reasons why the robustness problem would occur. The pros and cons for recognizing machined features are also analysed. Finally, a cutter selection methodology, known as process requirement modelling, is introduced; this methodology seems to provide a promising way to solve the machined feature recognition problem. Copyright (C) 1996 Elsevier Science Ltd.