转子体压铸工艺分析及模具设计-毕业论文

转子体压铸工艺分析及模具设计-毕业论文天津职业技术师范大学

Tianjin University of Technology and Education

专业:材料成型及控制工程

班级学号: 材料0711班-12号

学生姓名: 江艳平

指导教师: 段磊讲师

二〇一二年六月

天津职业技术师范大学本科生毕业设计

转子体压铸工艺分析及模具设计

Die-casting process analysis and die design of the rotor

body

专业班级:材料0711班

学生姓名:江艳平

指导教师:段磊讲师

学院:机械工程学院

2012 年 6 月

摘要

压力铸造是目前成型有色金属铸件的重要成型工艺方法。压铸的工艺特点是铸件的强度和硬度较高，形状较为复杂且铸件壁较薄，而且生产率极高。压铸模具是压力铸造生产的关键，压铸模具的质量决定着压铸件的质量和精度，而模具设计直接影响着压铸模具的质量和寿命。因此，模具设计是模具技术进步的关键，也是模具发展的重要因素。

本文通过对转子体的分析，设计其压铸模具。对其铸件外形及其分析，得出一

模一腔的模具结构。根据铸件的特点，需要采用中心浇口，尽量避免铸件出现气孔、填不满、凝固不均等问题，由于大批量生产，采用二次分模，自动脱料的方案，并完成整体模具的设计，其中包括冷却水道的设计、浇注系统的设计、顶出系统的设计等，以及压铸机的选择与校核。此设计通过UG软件设计完成，在设计过

程中结合自身设计的结构选择标准件，来完成装配后的最终模具效果。在设计过程中，利用ProCast软件来分析压铸件的各项结果和从中发现问题，通过分析可以仿真出铝合金成型过程中的充填、流动、凝固等过程，准确预测铸件中可能存在的缺陷。利用模流分析技术，能预先分析模具设计的合理性，减少试模次数，加快产品研发，提高企业效率。

关键词:转子体;压铸;模流分析;模具设计

ABSTRACT

Die-casting molding technology is playing a key role in non-ferrous metal structure forming processes. Die-casting process’s features are the strength and hardness of die

casting on high, thin-walled castings with complex shape can be cast, and the production is efficient. The die-casting die is the key for the process of die casting, its quality decides the quality and accuracy of castings, and the design of the die-casting die affects its quality and operating life directly. Therefore, designing the die-casting die is the key to technological progress; it is also an important factor in the development of mold.

In this paper，through analysis of the rotor body, design of its

die-casting mold, through its shape and analysis, obtain the one mode of

a cavity of the mold structure. According to the characteristics of the casting, use the center gate, try to avoid casting appears holes, filled up, solidification uneven, and other issues, due to mass production, use the second parting, auto-off the program of material and complete the overall design of the mold, which including the design of cooling channels, gating system design, the top of the system design, as well as the selection and checking of the die casting machine. This design was completed by UG, combined with the structure of design in the design process to select standard parts, to complete the final assembly mold effect. In the process of design ,use ProCast software to analyze the results of the die casting and problem from analysis. ProCast can simulate the filling, flow, solidification process in the aluminum alloy molding process, accurately predict the possible defects in the casting.The mold flow analysis can pre-analysis of the rationality of the mold design, reduce the number of test mode, speed up product development, increase business efficiencies.

Keywords: rotor body ;die-casting;mold flow analysis; mold design 目录

1 绪

论 ..................................................................... .. (1)

1.1 压铸的基本概

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