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    Design and Application of Extrusion Complex Die on Unplasticized PVC Pipes
    硬质PVC管材挤出复合模头设计和应用
    Fleet Precision Forming Technology of a Complex die Cavity
    一种复杂模具型腔的快速精密成形技术
    The CAD/CAM of the Complex Die for Foam Pattern in Lost Foam Process
    消失模铸造复杂发泡模模具CAD/CAM
    Development of Complex Die for Extruding Profile Rubber Sealing Strips
    组合式异型密封条挤出模头的研制
    According to the characteristics of RE and complex surface, the corresponding key technique and geometric modeling techniques of RE of complex die are studied in order to obtain Bezier surface which has good reconstruction adapability-Triangulation within Arbitrary domain, optimization of gridding, simplification of gridding, surface reconstruction based on continuum and surface fairing.
    根据复杂曲面及其反求的特点,以重构适应性好、编辑快捷的连续的Bezier曲面为最终目标,研究了适合复杂曲面冲压模具反求工程的几何建模技术及相应的关键技术,即:离散点集的三角划分,网格优化、网格简化、基于型曲面重构及其曲面光顺处理技术。
    The work of this paper is the important part of the project “research and developmentof integrate system for complex die & module intelligent design”, which is based on keyproject of Natural Science Foundation of China and science & technology researchprogram of MOE (ministry of education), People Republic of China.
    本课题由国家自然科学基金重点项目和教育部科学技术研究重点项目联合资助,是“大型复杂模具智能化仿真设计集成系统的研究开发”的重要组成部分。
    Numerical simulation provides the engineers powerful tool to solve complex die design problems of sheet forming.
    数值模拟技术为工程师解决复杂的板料成形模具设计问题提供了强有力的分析工具。
    The technological properties of the locking rod components on the rear curtain of the camera and the structure of the multi_position progressive die were analyzed. An introduction was made on the processing scheme of and the precision requirement on the main components of the die, the necessary fixture and the measuring methods. Natively manufacturing the complex die imported was realized.
    分析了照相机后帘锁杆零件的工艺特点及多工位级进模的结构 ,介绍了模具主要零件的加工工艺方案、精度要求及必要的夹具和测量手段 ,实现了进口复杂模具国产化。
 

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