筒壳压铸模三维CAD设计及CAE仿真成型.doc

学校代码：________ __ 学 号：_0706032037_ Hefei University 本科毕业设计（论文） BACHELOR DISSERTATION 论文题目： 筒壳压铸模CAD设计及CAE仿压铸是压力铸造的简称，其实质是在高压作用下，是液态或半液态金属以较高的速度充填压铸模型腔，并在压力下成型和凝固而获得铸件的方法。 本设计进行了一次筒壳的压铸模设计，对零件结构进行了工艺分析。通过对不同的压铸工艺方案分析,以及浇注系统、充填速度、温度、压力等工艺参数，进行压铸模结构设计分析；通过三维软件，对多零件进行三维造型，解决模具的结构设计，确定模具分型面。在此基础上，应用压铸CAE仿真充填、凝固过程，优化压铸模具结构设计。然后绘制模具装配图、零件工程图，同时校核模具关键零件的强度。进一步，编制型腔和型芯制造工艺卡片，最终表明该模具结构合理，制造工艺良好，工作可靠。 关键词：压铸模；浇注系统；分型面；；CAE Shell of die-casting mold CAD design and CAE simulation forming ABSTRACT Die casting is an improved version of permanent mold casting. In die casting, the molten metal is forced into the mold or die under pressure. In this theise, the structure process of Shell of die-casting were analyzed. The structure of pressure die-casting mould was designed through the analysis of various process planning and the calculations of technological parameters of filling system, speed, temperature, pressure, etc. By using 3D Pre/E software, the die-casting model and the mould structure had been drawed when mould surface was designed. On the basis, the design of die-casting mould structure was optimized through the application of CAE simulating the presssure filling and solidification course. Then, the mould assembly, parts were drawed and the intensity of the key parts was checked. Furthermore, the formulation of cavity and core manufacture process card was made. Finally, the result demonstrates that the die-casting mould is optimizational structure, the manufacturing process is reasonable and the action is reliable. Keywords: Die-casting mould；Feed system；Mould surface；Pro/E；CAE 第一章 前言 1 1.1 问题的提出 1 1.1.1零件的生产要求 1 1.1.2压铸的特点及应用范围 1 1.1.3筒壳生产工艺的选择 2 1.2国内外研究的现状 2 1.3设计的内容和目标 4 1.3.1本课题的主要内容、重点解决的问题,完成任务可能思路和方案。 4 1.3.2设计的目标 7 第二章 筒壳压铸件设计的工艺分析 8 2.1 压铸铝合金的化学成分和力学性能 8 2.2 压铸件的尺寸精度 8 2.3 压铸件的形位公差 9 2.4 壁厚 9 2.5 铸件外侧边缘的最小壁厚 10 2.6 铸造圆角半径 10 2.7 脱模斜度 10 2.8 压铸件的表面质量 10 2.9 加工余量 11 第三章 金属压铸工艺 12 3.1 压射比压 12 3.2 内