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As an important foundation of integral impeller milling manufacturing, integral impeller milling process knowledge plays a significant role in design and production. With the rapid development of aerospace industry and intelligent manufacturing technology, it is very urgent to construct knowledge base of milling process for typical integral impeller structure. Based on the analysis of typical milling process knowledge of integral impeller, the study proposes a model of knowledge base of milling process of integral impeller based on Teamcenter platform, which can effectively realize the sharing and reuse of knowledge of integral impeller milling process.