三维冷冲模设计的剖切图自动生成
Auto-Generation of Cutaway View for 3-D Press Tool
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摘要: 工程图样是工程技术部门表达和交流技术思想的重要工具,剖视图是其重要组成部分.目前许多商业化的图形软件包已经具备了三维实体向二维转换的通用工具,但是在实际应用中并不是十分有效.根据零件的孔、槽等剖切特征,提出基于优先度和基于图遍历的两种自动搜索关键特征产生剖切线的算法,并分别结合实例进行了比较.结果表明,这两种算法在基于模板的冷冲模CAD系统的实际应用中是理想、可靠的.Abstract: Although generic tool of transform from 3-D entity to 2-D are supported by many commercial CAD packages,it is still not so effective in design applications.This paper proposes two algorithms based on priority analysis and graph traversal respectively to automatically choose the section cut of key features such as holes and slots.Efficiency and reliability are enhanced for the template based generation of press tool drawing.
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