超详细的UG钣金设计教程

Flat Pattern (二维展开)

Layout Options

?Additional Curves----In addition to the normal curves that are created for the flat pattern, you may select additional curves, edges, or points to appear in the flat pattern. The objects that are selected are projected to the body if necessary and flattened. The resulting curve or point then appears in the flat pattern at the location where the faces were flattened.

?Show Features----This option, when selected, will highlight all sheet metal features identified during part traversal of the part.

?Start Position----If the Locationis set to Start Position,the flat pattern is created at the starting position. If the Locationis set to WCSthe starting position is mapped to the origin of the WCS.?Orientation Vector----

Flat Pattern (二维展开) ----Woven Materials

针对复杂的曲面，如果需要精确展开，必须考虑材料流动，因此须用有限元的方法。但

Woven Materials(编织材料)的原理可用来比较精确地展开复杂曲面，而且使用方便，效率高。

Exercise

Activity 14-2 Creating a Flat Pattern Drawing Assembly

Activity 14-3 Flat Patterns for Non-sheet Metal Parts

P.415 ~ P.424P.425 ~ P.431Lesson 19 MetaForm(有限元法展开)

用有限元法来展开复杂零件，填补了设计与分析之间空白