Intelligent manufacturing system of impeller for computer numerical control (CNC) programming based on KBE

WANG Ling-yun(王凌云)¹, HUANG Hong-hui(黄红辉)¹, Rae W. West², WANG Da-zhong(王大中)¹

(1. Department of Manufacturing Engineering and Technology,
Shanghai University of Engineering Science, Shanghai 200437, China;
2. College of Engineering, University of Nevada-Las Vegas, Las Vegas, Nevada 89154, USA)

Abstract:To solve the problem of advanced digital manufacturing technology in the practical application, a knowledge engineering technology was introduced into the computer numerical control (CNC) programming. The knowledge acquisition, knowledge representation and reasoning used in CNC programming were researched. The CNC programming system functional architecture of impeller parts based on knowledge based engineering (KBE) was constructed. The structural model of the general knowledge-based system (KBS) was also constructed. The KBS of CNC programming system was established through synthesizing database technology and knowledge base theory. And in the context of corporate needs, based on the knowledge-driven manufacturing platform (i.e. UG CAD/CAM), VC++6.0 and UG/Open, the KBS and UG CAD/CAM were integrated seamlessly and the intelligent CNC programming KBE system for the impeller parts was developed by integrating KBE and UG CAD/CAM system. A method to establish standard process templates was proposed, so as to develop the intelligent CNC programming system in which CNC machining process and process parameters were standardized by using this KBE system. For the impeller parts processing, the method applied in the development of the prototype system is proven to be viable, feasible and practical.

Key words:knowledge engineering; generalized knowledge; intelligent programming; impeller machining