| 3. | Aiming at the shortage of material information , tolerance information , technical information , and so on in the model , the author conducted a research on a step based and feature oriented method to integrate the information in the model . the models for several common features were created . they are hole feature , planar face feature , outer - round feature , planar pocket feature , revolved groove feature , circular pattern feature , and rectangular pattern feature
针对现有数据模型在材料、公差以及工艺信息等方面的缺失,研究了在基于step的面向特征的产品数据模型中集成这些信息的方法,建立了一些常见特征,如孔类、平面、外圆、平面槽及旋转槽、圆周阵列、矩形阵列等特征的信息模型,并用express语言来表达,该模型不仅包含几何拓扑信息,而且增加了公差、工艺路线、装夹定位、加工方法、及材料等信息。 |
