基于三维加工特征的工艺优化设计系统  

Process planning design and optimization system based on 3D manufacturing features

作　　者：胡于进[1] 张正义[1] 蔡力钢[1] 凌玲[1] 

机构地区：[1]华中科技大学机械学院,武汉430074

出　　处：《机械设计与制造》2009年第6期74-76,共3页Machinery Design & Manufacture

基　　金：国家自然科学基金资助项目(50675078);国家863资助项目(2006AA04Z136)

摘　　要：三维CAD/CAPP的应用要求表明,三维工艺设计不仅要解决不同设计与工艺模型之间的数据获取与传输,而且还要考虑工艺优化的环境与全局性。利用基本几何面单元来表达三维加工特征并结合特征的制造信息和资源约束,建立了基于设计模型与工艺模型的统一数据模型;然后在工艺准则、资源加工能力和用户自定义的约束条件下进行工艺优化;最后根据生产环境进行综合评价并选择最优的工艺方案。The application of 3DCAD/CAPP was express that not only the data obtain and transmission problem between design model and process model should be solved, but also the process optimal environment and global superiority should be considered. The manufacturing features are expressed by the plan basic element,with the constraints of manufacturing features and manufacturing source,a unified data modal based on design and process model is established,then optimize the process data under the constraints of process rule ,source＇ s manufacturing Capacity and user＇ s defined, at last,the best process is selected according to the global evaluation result.

关 键 词：三维加工工艺 分层优化 加工特征 特征表达 统一数据模型 

分 类 号：TH162[机械工程—机械制造及自动化] TP391[自动化与计算机技术—计算机应用技术]