毕业论文 管状三通铸件.docVIP

管状三通铸件铸造工艺的CAE设计 摘 要 在现代社会中，随着各类机械设备的需求日益增大，对三通等管路连接件的性能、要求提出了更高的要求，普通的切削加工的制造工艺，不仅材料的利用率低、模具寿命短而且后续加工切断了金属流线，影响其性能。改为铸造生产后，不仅减少工序，而且材料利用率大大提高。 本设计为了实现管状三通件铸造工艺性最优的目标，采用UG对三通实体建模，对模型进行CAE计算机数值模拟，通过分析三通铸件各部位在浇注和凝固过程中，流场、速度场、温度场和时间场等的数值模拟计算结果，预测铸件在生产过程中产生的缺陷。依据数值模拟结果对产品结构设计不合理的区域和工艺设计过程中存在的问题提出改进性建议。 根据模拟结果，确定较好的铸造工艺方案和各部分的数据尺寸。 关键词：三通；数值模拟；CAE The CAE design of tubular tee casting process Abstract In modern society, with various mechanical equipment increasing demand, as for the performance of the pipe fittings tee, requirement put forward higher request, common cutting processing manufacturing technology, not only material utilization rate is low, mould short life and subsequent processing cut off metal flow, affect its performance. Instead, after casting production, not only reduce process and material utilization greatly improved. This design in order to achieve the tubular tee casting technology, the optimal goal，using UG entity modeling, to tee , the model and numerical simulation and CAE computr ,through analyzing tee in various parts of castings, casting and solidification process flow field, velocity field and temperature field and the numerical simulation of the time fields calculation result, in the process of production forecast castings produced defects. Based on numerical simulation results of product structure design unreasonable area and process design problems in the course of some improvement suggestion . According to the simulation results to determine the better part of the casting process programs and data size. Keywords: Tee; Numerical simulation ;CAE 目 录 引言…………………………………………………………………………………………………………1 第1章 绪论………………………………………………………………………………………………2 1.1铸造工艺和CAE的发展概况………………………………………………………………………2 1.2本设计的主要内容…………………………………………………………………………………3 第2章 铸造工艺方案数值模拟分析…………………………………………………………………4 2.1 CAE软件介绍和使用………………………