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“摇臂”锤模锻工艺及模具设计
目 录
课程设计任务书·····················································1
前言·······························································2
1 零件分析及基本工艺方案确定零件分析·······························3
1.1 零件分析·······················································3
1.2 零件材料特性分析···············································3
1.3 零件尺寸精度及表面粗糙度分析···································4
1.4 零件基本工艺方案确定···········································4
2 锤上模锻锻件设计·················································5
2.1 确定分模位置···················································5
2.2 确定锻件公差及加工余量·········································5
2.2.1 确定材质系数、复杂系数、零件的机械加工精度···················5
2.2.2 确定锻件公差和余量···········································6
2.2.3 确定模锻斜度·················································6
2.2.4 确定圆角半径·················································7
2.2.5 确定冲孔连皮·················································7
2.3 确定模锻件的技术条件···········································7
3 锤上模锻锻件工艺设计·············································9
3.1 计算锻件的主要参数·············································9
3.2 确定锻锤设备吨位···············································9
3.3 确定飞边槽形式和尺寸···········································9
3.4 绘制计算毛坯图················································10
3.5 计算繁重系数并确定制坯工步····································12
3.6 确定坯料尺寸··················································12
3.6.1 坯料截面积及直径计算········································12
3.6.2 坯料长度计算················································13
3.7 模锻前期工序方法选择··········································13
3.8 模锻后期工序方法选择··········································14
3.9 锻件工艺卡····················································14
4 锤上模锻锻模设计················································16
4.1 终锻模膛设计··················································16
4.2 滚挤模膛设计··················································16
4.2.1 滚挤模膛的高度··············································17
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“摇臂”锤模锻工艺及模具设计
4.2.2 滚挤模膛宽度··················
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