ZL101铸造工艺辅助设计平台的研究与开发

发布时间：2018-11-23 06:20

【摘要】：目前,铸件补缩系统的设计主要是依靠人工的经验进行结构划分,再根据在长期生产中积累的经验法进行计算,有一部分设计的补缩系统不尽合理、尺寸误差,有时不能消除铸件内部缺陷;而利用铸造模拟软件进行铸造过程模拟,进行缺陷预测已经在实际生产中得到广泛应用。因此,将工艺设计和数值模拟技术相结合,将会是未来铸造产业的主要发展方向。通过对简单件(材料选用ZL101)的补缩系统进行设计,并对凝固时间与冒口尺寸的关系进行研究,找出一种基于数值模拟的补缩系统计算模型;同时对浇注系统设计常见方法进行归纳总结,找出浇注系统设计模型;以My Eclipse软件作为系统开发平台,Java语言进行脚本程序的编译,通过MySQL和JDBC组件完成对数据库的创建、管理;通过平台编译、连接,完成了针对ZL101的铸造工艺辅助设计平台的开发。最后以滤盖、泵壳体的数值模拟、验证实验对本系统的准确性和可靠性进行了验证。ZL101铸造工艺辅助设计平台是通过对输入条件的分析计算,完成对铸件浇注系统的设计,然后对铸件与浇注系统进行数值模拟,根据模拟结果中缺陷处的凝固时间进行补缩系统设计,用缺陷所在孤立熔池的收缩量进行验证,最终得出补缩系统的最优设计方案。本系统用户界面直观易懂、数据库中数据存量大,繁琐的运算和大量工艺数据查找均在后台进行,使得设计过程科学合理,对改进铸造生产工艺,提高产品质量,减少开发周期具有一定的指导意义。
[Abstract]:At present, the design of casting feeding system is mainly based on artificial experience to divide the structure, and then according to the accumulated experience in long-term production method to calculate, some of the designed feeding system is unreasonable, dimension error, Sometimes the internal defects of castings can not be eliminated; However, casting simulation software has been widely used to simulate the casting process and predict the defects. Therefore, the combination of process design and numerical simulation technology will be the main development direction of foundry industry in the future. By designing the feeding system of simple parts (ZL101) and studying the relationship between solidification time and riser size, a model of feeding system based on numerical simulation is found. At the same time, the common design methods of the gating system are summarized, and the design model of the gating system is found out. The My Eclipse software is used as the system development platform, the Java language is used to compile the script program, and the database is created and managed by MySQL and JDBC components. Through compiling and connecting the platform, the development of casting process aided design platform for ZL101 is completed. Finally, the accuracy and reliability of the system are verified by the numerical simulation of the filter cover and pump shell. The design of the casting gating system is completed by the analysis and calculation of the input conditions of the ZL101 casting process aided design platform. Then the casting and the gating system are numerically simulated. According to the solidification time of the defect in the simulation results, the feeding system is designed, and the shrinkage of the isolated molten pool where the defect is located is verified. Finally, the optimal design scheme of the feeding system is obtained. The user interface of this system is intuitionistic and easy to understand, the data stock in the database is large, the tedious operation and a large number of process data search are carried out in the background, which makes the design process scientific and reasonable, and improves the casting production process and the product quality. Reducing the development cycle has certain guiding significance.
【学位授予单位】：中北大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG292

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