Based on this HBCR, the shape features are extracted from solid model for sheet metal punching part to realize the "feature-based" modeling design.
基于混合实体造型HBCR技术，通过提取钣金冲压件形状特征模型，实现了基于特征的钣金模型设计。
Based on the study of features of sheet metal parts and Zero Thickness Hypothesis, a new mechanism of naming and identifying topological entities of a feature model is proposed in this paper.
本文在对钣金件特征研究和“零厚度”假设的基础上，提出了一种钣金件拓扑元素命名和辨别的新方法。
In this article, features for sheet metal parts are sorted and represented based on feature recognition.
从面向特征识别的角度，对钣金零件的特征进行了分类，并采用图结构描述分类特征。
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