本帖最后由 pipicooler 于 2011-5-13 08:59 编辑

前言..............................................................................................................................................1
目录 ................................................................................................................................................2
第一部分、塑料件 ...........................................................................................................................8
1、概述： ................................................................................................................................8
1.1、常用塑料介绍 ..........................................................................................................8
1.2、常见表面处理介绍 ..................................................................................................8
1.3、外形设计 ..................................................................................................................9
1.4、装配设计 ..................................................................................................................9
1.5、结构设计 ................................................................................................................10
2、产品结构设计准则--设计程序 .......................................................................................13
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第二部分、钣金件 .........................................................................................................................85
1、概述 ..................................................................................................................................85
2、冲裁 ..................................................................................................................................85
2.1、冲裁件的形状和尺寸尽可能简单对称，使排样时废料最少。 ........................85
2.2、冲裁件的外形及内孔应避免尖角。 ....................................................................85
2.3、冲裁件应避免窄长的悬臂与狭槽 ........................................................................86
2.4、冲孔优先选用圆形孔，冲孔有最小尺寸要求 ....................................................86
2.5、冲裁的孔间距与孔边距 ........................................................................................87
2.6、折弯件及拉深件冲孔时，其孔壁与直壁之间应保持一定的距离 ....................88
2.7、螺钉、螺栓的过孔和沉头座 ................................................................................88
2.8、冲裁件毛刺的极限值及设计标注 ........................................................................89
3、折弯 ..................................................................................................................................90
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第三部分、切削件结构设计准则 ...............................................................................................109
1、概述： .............................................................................................................................109
2、便于退刀准则 .................................................................................................................110
3、减少加工量准则 ............................................................................................................. 111
4、可靠夹紧准则 .................................................................................................................114
5、同一夹紧工序准则 .........................................................................................................115
6、便利切削准则 .................................................................................................................116
7、减少缺口效应准则 .........................................................................................................117
8、避免斜面开孔准则 .........................................................................................................118
9、贯通孔优先准则 .............................................................................................................119
10、孔周边条件相近准则 ...................................................................................................119
第四部分、铸件结构设计规范 ...................................................................................................121
1、最小壁厚准则 .................................................................................................................121
2、筋长方向柔性准则 .........................................................................................................121
3、避免局部材料堆积准则 .................................................................................................123
4、良好的受力状态准则 .....................................................................................................123
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第五部分、结构件电磁兼容设计规范.......................................................................................133
1、概述：.............................................................................................................................133
2、设计程序要求.................................................................................................................133
3、屏蔽效能等级.................................................................................................................134
3.1、屏蔽效能等级的划分..........................................................................................134
3.2、屏蔽效能测试标准..............................................................................................134
3.3、屏蔽效能等级的确定..........................................................................................135
3.4、成本控制..............................................................................................................136
4、屏蔽设计指引......................................................................
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第七部分：结构设计准则 ...........................................................................................................149
1、概述 ................................................................................................................................149
2、机械结构基本设计准则 .................................................................................................149
2.1、实现预期功能的设计准则 ..................................................................................149
2.2、满足强度要求的设计准则 ..................................................................................151
2.2.1、等强度准则 .......................................................................................................151
2.2.2、合理力流结构 ...................................................................................................151

• 机械结构工程师设计准则.rar