共查询到15条相似文献,搜索用时 171 毫秒
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基于UG NX6.0平台,集成UG/OPEN API,UG/OPEN Menu Script,UG/OPEN UIStyler和UG/OPEN C++4个部分,利用Visual C++6.0的内部UF函数语言进行参数化建模,开发了人机交互模具参数化设计模块,实现了铝管材挤压平面分流模的CAD系统设计;采用CAD系统建模,借助MSC.Superforge对铝管材挤压过程进行优化。实例表明,采用该系统可较为方便地设计出铝合金管材平面分流组合模,且通过模拟优化的工艺参数生产的制品表面质量优良,表面光洁度和硬度基本能达到要求,尺寸精度和壁厚偏心度能得到保证。 相似文献
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基于UG的铝型材挤压分流模设计KBE系统 总被引:2,自引:2,他引:0
结合铝型材挤压特点,将KBE系统引入型材挤压分流模设计中,在基于知识工程的铝型材挤压分流模智能设计系统框架内,将铝型材挤压分流模设计知识通过UG系统用户界面实现同分流模几何特征构建的搭接。系统是以UG NX为CAD/CAE开发平台,以VC++、UG/API、UG/GRIP等为编程开发语言环境,以工程实际经验及专家知识为分流模设计指导,并综合运用UG多种二次开发手段开发各个功能模块,包含零件管理信息、材料分析、截面特征、挤压工艺参数确定、模具结构设计、模具强度校核以及模具其他尺寸设计。系统的开发是KBE与CAX系统融合的一次有益尝试,对于挤压分流模KBE及计算机辅助设计具有积极的推广作用。 相似文献
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采用UGⅡ的三维建模技术和VisualC ,利用UG。OPENAPI开发了铝型材挤压模具的CAD系统,实现了普通铝型材挤压模的三维CAD设计。 相似文献
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基于对型材挤压特点的详尽分析,提出了铝型材挤压模CAD/CAE/CAM系统功能模型并确定了基于UG和NSYS平台的系统集成方案,对关键软件模块进行二次开发,在此基础上对平模挤压折角、槽型材和分流组合模挤压扁管型材进行了分析。 相似文献
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挤压速度对铝型材分流模寿命影响的模拟分析 总被引:1,自引:0,他引:1
挤压速度是影响铝型材分流模寿命的主要因素之一。不同挤压速度下,模具所受温度和压力不同,对模具寿命产生直接影响。以矩形管铝型材挤压为例,利用Deform有限元分析软件对挤压过程进行数值模拟,得到不同挤压速度下分流模温度和压力变化情况。结果表明:随挤压速度的增大,分流模各工作部位温度逐渐升高,而所承受压力则先降低后升高。探讨了温度和压力的改变对模具寿命的影响机制,指出挤压速度对模具寿命的影响表现为加速模具各工作部分的塑性变形、磨损和应力集中部位失效,以及加剧挤压模的冷热疲劳现象。 相似文献
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Cunsheng Zhang Guoqun Zhao Hao Chen Yanjin Guan Haijin Cai Baojie Gao 《Journal of Materials Engineering and Performance》2013,22(5):1223-1232
Currently, with the increasing demand of high production output, much attention is paid to the research and development of multi-hole extrusion die. However, owing to the complexity of multi-hole porthole extrusion technology, it has not been applied widely in practice for the production of aluminum profiles, especially for porthole die with an odd number of die orifices. The purpose of this study is to design a three-hole porthole die for producing an aluminum tube and to optimize the location of die orifices based on computer-aided design and engineering. First, three-hole extrusion dies for different locations of die orifices are designed. Then, extrusion processes with different multi-hole porthole dies are simulated by means of HyperXtrude. Through numerical simulation, metal flow, temperature distribution, welding pressure, extrusion load, and die stress, etc. could be obtained, and the effects of the location of die orifices on extrusion process are investigated. With the increasing distance between die orifice and extrusion center (described as eccentricity ratio), metal flow becomes nonhomogeneous, and twisting or bending deformation of profile occurs, but the welding pressure rises, which improves the welding quality of profiles. However, the required extrusion force, billet and die temperature, die displacement, and stress induce no significant changes. In comparison with the extrusion force during single-hole porthole extrusion, there is 18.5% decrease of extrusion force during three-hole porthole extrusion. Finally, design rules for this kind of multi-hole extrusion dies are summarized. 相似文献