符静枫--课程设计报告 - 图文

课程名称： 铸造过程CAD/CAE综合实验报告

学 院： 机械工程 专 业： 材料成形及控制工程

姓 名： 符静枫 学 号： 080803110008

年 级： 成形082 任课教师： 姜 云

第一章 简介 ····················································································· 4

1.1 进气支管零件分析 ········································································································ 4 1.1.1 零件介绍 ················································································································· 4 1.2 进气支管结构分析 ········································································································ 4

第二章 基于UG零件的三维造型 ·························································· 4

2.1零件的三维造型图 ········································································································· 4

第三章 铸造工艺参数 ···································································· 6

3. 1 工艺设计参数确定及砂芯设计 ··················································································· 6 3.1.1铸件尺寸公差 ·········································································································· 7 3.1.2机械加工余量 ·········································································································· 7 3.1.3铸造收缩率 ·············································································································· 7 3.1.4最小铸出孔 ·············································································································· 8 3.1.5铸件在砂型内的冷却时间 ······················································································ 8 3.1.6工艺补正量 ·············································································································· 8 3.1.7分型负数 ·················································································································· 9 3.1.8反变形量 ·················································································································· 9 3.1.9非加工壁厚负余量 ································································································ 10 3.1.10起模斜度 ·············································································································· 10 3.1.11铸件重量公差 ······································································································ 10

第四章 浇注系统及冒口、出气孔等设计 ················································ 11

4.1浇注系统的设计 ··········································································································· 11 4.1.1选择浇注系统类型 ································································································ 11 4.1.2确定内浇道在铸件上的位置、数目、金属引入方向 ········································ 11 4.1.3决定直浇道的位置和高度 ···················································································· 12 4.1.4计算浇注时间并核算金属上升速度 ···································································· 13 4.1.5铸件工艺出品率 ···································································································· 13 4.1.6计算阻流截面积 ···································································································· 14 4.1.7确定浇口比 ············································································································ 14 4.1.8计算内浇道截面积 ································································································ 14 4.1.9计算横浇道截面积 ································································································ 15 4.1.10计算直浇道截面积 ······························································································ 16

4.1.11浇口窝的设计 ······································································································ 17 4.1.12浇口杯的设计 ······································································································ 18 4.2冒口的设计 ··················································································································· 18 4.3出气孔的设计 ··············································································································· 19

第五章 砂箱决定及铸件完整图 ···························································· 19

5.1浇铸系统的三维图 ······································································································· 19 5.2砂箱大小及砂箱中铸件数目的确定 ··········································································· 21

第六章 Anycasting模拟分析 ······························································· 22

6.1进气支管模拟分析 ······································································································· 22

结 论 ···························································································· 31 致谢 ······························································································· 32 参考文献 ························································································· 33 附图 ······························································································· 34

第一章 简介

1.1 进气支管零件分析 1.1.1 零件介绍 零件名称：进气支管

零件材料：进气支管材质为HT250，其主要参数是抗拉强度（MPa）

?b不小于250MPa，主要组织为细片状普通灰铸铁，

产品生产性质：大批量生产 1.2 进气支管结构分析

1）零件结构特点

进气支管件是一个中小型的结构件，外形尺寸

170mm?162.5mm?182mm,主要壁厚基本均匀，在

4～15mm左右，最大

壁厚14,最小壁厚4mm，零件结构呈对称布置。零件整体结构呈“抽风箱”形式，外形由弯管和方形管组成，内腔较复杂。

2）主要技术条件要求

进气支管零件的加工等级为CT10，抱手上面键槽对称，所有的小圆孔都不需要铸造出来，铸出弯管内腔和方形管内腔，造型时需要用活块造型。

第二章 基于UG零件的三维造型

2.1零件的三维造型图