By disposing data of importing IGES line,the system can realize the recognition and extraction of typical stamp features, such as primary face feature, punch feature and flange feature.

• 通过对读入的IGES三维线框文件进行预处理,使之满足特征识别的需要,采用基于几何推理的特征识别技术实现了对冲压件主型面特征、冲孔特征、翻孔特征的识别与提取。