本文描述了一个独特、开放、灵活的钣金制造CAD/CAM系统，该系统采用特征识别和基于知识的加工规则。这些规则与二维、三维、参数化设计和绘图模块完全集成，用于钣金零件的自动制造。先进的特征识别和基于知识的制造规则的创新专家系统技术简化了生产过程。它们还支持直接连接到CAD数据库的自动NC编程，以便在很短的时间内设计和制造钣金产品。

THE PAPER DESCRIBES A UNIQUE, OPEN, AND FLEXIBLE SHEET METAL MANUFACTURING CAD/CAM SYSTEM WHICH EMPLOYS FEATURE RECOGNITION AND KNOWLEDGE-BASED MACHINING RULES. THESE RULES ARE FULLY INTEGRATED WITH A 2D, 3D, PARAMETRIC DESIGN AND DRAFTING MODULE FOR THE AUTOMATIC MANUFACTURE OF SHEET METAL PARTS. INNOVATIVE EXPERT SYSTEM TECHNIQUES OF ADVANCED FEATURE RECOGNITION AND KNOWLEDGE-BASED MANUFACTURING RULES SIMPLIFY THE PRODUCTION PROCESS. THEY ALSO SUPPORT AUTOMATED NC PROGRAMMING TIED DIRECTLY TO THE CAD DATABASE FOR THE DESIGN AND MANUFACTURE OF SHEET METAL PRODUCTS IN A VERY SHORT TIME.