模具的数字化设计与制造

在中国国家自然科学基金重点项目《特大件成形制造技术基础研究》资助下，探讨数字化技术对成形制造相关技术的影响，讨论模具数字化设计与制造的概念、内涵和特点，提出模具数字化设计与制造的主要支撑技术——模具数字化设计、加工和分析技术，对支撑技术的现状、研究重点以及今后发展方向进行评述。 在模具数字化建模技术中，基于特征的建模技术是新一代建模技术。特征技术表达的模具信息完备且含有丰富的语义信息，特征是模具形状和属性的信息集合，能够方便地描述形状，为加工、分析、制造、装配甚至使用提供必要且充分的信息，是完整描述模具信息的方法，已成为在模具设计、分析、制造、装配等应用之间传递信息的纽带。 模具设计是一个典型的弱理论领域，具有很强的经验依赖性，因此保存和重用已有经验和知识具有特殊的重要性。这促使人们将知识工程应用于模具设计领域。知识工程研究的重点在于基于知识的模具建模，工程知识的融合和繁衍技术, 工程知识的表示和推理技术。

Digital Design and Manufacturing Technology in Die & Mold

The project is financially supported by the major program of the NSFC. The concepts, connotation and character of digital design and manufacture technology in die & mold which includes digital design, digital analysis, digital manufacture, have been introduced. The present situation, emphases on research and the trend of the technology have been presented. Feature based technology is a new and modern modeling technology in Digital modeling construction technology about digital design and manufacture in die & mold, which can deliver full information about die &mold in design and manufacture. Feature is as the integrated information about shapes and functions of the dies & molds that can define the shape of die & mold, and also can deliver the necessary and full information for design, analysis, manufacture, assembly and use, and that become the tie among design, analysis, manufacture, assembly and use in die & mold.