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介绍三极管框架的冲压加工工艺、模具的总体结构、关键零件的材料及结构特点和模具装配要点。模具结构可靠,能保证零件的质量要求,对类似零件的精密级进模的设计具有一定的参考作用。 相似文献
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本文对径向挤压成形的汽轮机静叶片进行了精压工艺研究。设计、制作了一套热精压模具、进行了工艺试验,精压后的零件达到了预期的要求。 相似文献
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<正> 电子陶瓷零件在电子产品中占有一个重要位置,因而必须探索、研究、丰富和发展陶瓷模具的设计和制造方法。瓷件中不同的成型方法则具有不同的模具结构,本文仅就轧膜成型模、干压模、热铸模等主要成型部份的设计计算和工艺放尺、模具尺寸计算等谈谈自己的认识。 相似文献
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The present work investigated the solidification microstructure of AISI M2 high speed steel manufactured by different casting technologies,namely iron mould casting and continuous casting.The results revealed that the as-cast structure of the steel was composed of the iron matrix and the M2C eutectic carbide networks,which were greatly refined in the ingot made by continuous casting process,compared with that by the iron mould casting process.M2C eutectic carbides presented variation in their morphologies and growth characteristics in the ingots by both casting methods.In the ingot by iron mould casting,they have a plate-like morphology and grow anisotropically.However,in the ingot made by continuous casting,the carbides evolved into the fiber-like shape that exhibited little characteristics of anisotropic growth.It was noticed that the fiber-like M2C was much easier to decompose and spheroidize after heated,as a result,the carbides refined remarkably,compared with the case of plate-like carbides in the iron mould casting ingot. 相似文献
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对压铸模具智能CAD系统进行了研究和探讨,论述了设计型专家系统理论模型的建立,开发了适用于压铸模设计的设计型专家系统开发工具,建立了知识库系统,利用ADS语言开发了压铸模具的图形输出系统,同时用ADS语言开发出专家系统与模具CAD系统的数据接口应用程序,实现了专家系统从数据形式到图形形式的转换,从而实现了压铸模具的智能化设计。 相似文献
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叶轮的叶片薄而多,且呈弧形,成形零件是叶轮压铸模设计和加工的难点。设计给出的叶轮压铸模结构。成形铸件10个叶片的型腔由5个定模镶件和5个定模镶件镶拼而成,既便于模具制造,又便于在镶件配合面上设置排气槽。模具结构紧凑,工作可靠,操作方便。 相似文献
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An integration system was developed to satisfy the need of information integration in the process of designing, investment casting and monitoring aero-engine's turbo blade. The general architecture is detailed presented in this paper. The system mainly comprises of product master model, design information management, anti-deformation design of mould cavity, intelligence mould design and blade testing. The developed system can manage mould design and blade test data flow, optimize mould design process and achieve the goal of integration design. 相似文献
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采用压铸工艺成形铝合金薄壁长轴类零件。首先根据压铸模具浇注系统的设计原则,对铝合金件压铸模的浇注系统进行了设计计算;其次运用procast软件对铝合金压铸成形工艺进行数值模拟,根据压铸过程中的温度场云图,进行了压铸模具的热平衡分析和压铸件的充型凝固分析;最后针对模拟的结果进行了压铸模具的设计。 相似文献
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1 INTRODUCTIONCastaluminumalloysarewidelyusedinaerospace ,aeronautics,automobiles ,mechanicalmanufacturingindustries ,etc .,duetotheirdesirablefeaturessuchaslowdensity ,highspecificstrength .Withthedevelopmentofmodernindustriesandnewcastingtechnologies ,thed… 相似文献