针对目前CAD/CAM集成中存在的问题 ,介绍了面向制造过程的产品模型中的关键技术———零件可制造性检查的基本思想和方法 ,即把零件的可制造性检查分解到每一步制造操作中 ,根据设计者指定的虚拟加工环境 ,分别进行加工可行性和工艺性检查 ,并引入了相关概念 ,着重讨论了加工可行性检查的方法和步骤 . Aiming at the existing problems in CAD / CAM integration, this paper introduces the key technology in product model for manufacturing process --- the basic idea and method of component manufacturability inspection, that is, decomposing the manufacturability check of parts into every step of manufacturing During the operation, according to the virtual processing environment designated by the designer, the feasibility and technological inspection of the processing were respectively carried out. Relevant concepts were introduced, and the methods and steps of the feasibility check of the processing were mainly discussed.