Milling Feature Recognition and Construction for Structural Parts Based on STEP
Based on the analysis of the geometry and machining characteristics of aircraft structural parts, and the feature geometry is described with a hierarchical structure. A machining feature recognition method based on neutral file is presented. Firstly, geometry and topology information of CAD model in UG software is obtained from STEP AP203 interface. Secondly, features are extracted from B-rep representation of the part, and then the features, as well as corresponding geometry and topology are mapped machining feature which is utilized as standard interface for CAM. Based on these studies, a feature recognition system was developed in visual C++, which discussed the data mapping methods from AP203 to C++ system, from AP203 to ORACLE sever. The lexical analysis process of the AP203 files, the establishment and operation process of the machining feature database was developed. And the feasibility was verified by an example of structural part.
milling feature recognition STEP AP203 file feature reconstruction feature mapping VC++ aircraft structural parts neutral file
Tiegang Li Chunlin Fu Peng Guan Tianbiao Yu Wanshan Wang
Northeast University, Shenyang, Liaoning, 110004, China
国际会议
2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)
长沙
英文
924-927
2010-12-18（万方平台首次上网日期，不代表论文的发表时间）