Figure 34 An assembly tree in SolidWorks 图 34 SolidWorks中的装配树。
Assembly drawings 装配图
Assembly drawings in 2D are manual tasks and take a long time to prepare. A bottom up approach is used in 2D. Part drawings are created first and then the 2D views are grouped by blocks and inserted to the assembly drawing which can vary in accuracy and difficult to expl ore.
2D中的装配图是手工作业并要准备很长时间。2D中使用逐步的方法。先创建零件图，然后用 图块组合2D视图并插入到能够正确改变又不易测定的装配图中。
Assembly drawing in 3D is an output from the 3D assembly—its simple. The purpose of an assembly drawing is for BOM and assembly instruction to let shop floor people know how the components are put together. If we design in 2D, it is quite impossible to automatically create isometric views for a die set. Section views are also time-consuming to construct. In SolidWorks, we can create eDrawings which is much easier to understand. EDrawings also provide tools to measure, markup and section. eDrawings 2005 is also able to run avi data from SolidWorks® Animator. 3D装配图从3D装配体输出，很简单。装配图的意义是为了通过零件表和装配结构让工厂人员 知道零件是如何组合到一起得。如果我们在2D环境中设计，为模具自动创建等轴视图是完全做 不到的。剖面图也要费时的创建。在SolidWorks中，我们能够创建很容易理解的eDrawings。 eDrawings还有测量，标记和剖切工具。eDrawings2005还能够从SolidWorks动画中运行avi数 据。 BOMs 零件表
Bill of Material in 2D is created manually if no customization is done. BOM creation can be automated by extracting block or layer information. In any case, it is very difficult to create an accurate BOM in 2D. To create BOM automatically, programming or significant detail preparation is required.
如果没有定制，2D中的材质表单要手动创建。零件表的创建可通过提取图块和图层信息来自动
化。在很多情况中，2D环境下创建一个精确的零件表非常困难。要自动创建零件表，规划或有
效的细节准备是有必要的。
In a 3D CAD system, since the assembly is already well defined, the BOM creation is automatic. Customization is also possible by adding items to file properties of the part documents. Changes to parts and assemblies are also maintained in the BOMs.
在3D CAD系统中，从装配体已经很好的定义开始，零件表的创建是自动地。通过添加项目到 零件文档中的文件特性中来定义也是可行的。改变零件和装配体也能在零件表中保持一致。
Hole charts 孔列表
Hole chartss are automatically created in 2D system by extracting information from blocks. SolidWorks® extracts hole information directly from solid model and create the hole table automatically without programming.
在2D系统中孔列表通过提取图块中信息自动创建。SolidWorks®直接从实体模型中提 取孔信息，并且不需规划就可自动创建孔列表。
Title blocks 标题图块
2D uses blocks and attributes as title block info while SolidWorks® links annotations with file properties and part properties.
2D使用图块和属性定义标题图块信息而SolidWorks®是通过文件属性和零件属性链 接注解。
Conclusion 结束语
Time spent in modeling is the only obstacle for 2D users to migrate to 3D; primarily are a beginner. Mastering part modeling is the key to success for the migration. Surfacing is also important as parts today are complicated. With the help of 3DQuickPress, 3D Progressive Die Design is made easier, more accurate and productive.
对于2D用户转到3D唯一的障碍就是建模的时间花费上，主要是初学者。精通零件建模 是成功转换的关键。表面对于今天复杂的零件也是重要的。有了3DQuickPress的帮 助，3D级进模设计变得容易，更准确和高产。