Abstract: Virtual manufacturing is the deveiopment trend of plastic parts and molds computer-aided design technology. In order to integrate CAE into injectiou-molded parts virtual manufacturing system effectiveiy, an intelligent injection molding CAE system based on surfaces model is established. Using the surfaces model replacing conventional mid-plane model, the integration of CAE and CAD becomes possible, and the bottleneck of traditional CAE sofhvares is broken through. By taking fuU advantages of artificial intelligence and expert system teehnologies in the CAE system, the initlalization, evaluation ,and optimization of designs can be accomplished with the guidance of CAE, which improves the worthiness and efficiency of CAE greutly.

Key words: Knowledge-based systems, Virtual manufacturing CAE simulation, Plastic injection molding