圆柱体相贯线上的圆角表示方法

在机械设计中，圆柱体相贯线上的圆角表示方法是CAD和计算机辅助设计中的难题，所有的CAD／CAM软件都没有这一功能，多数使用者采用的是各种近似方法。本文介绍了严密精确的设计和几何造型方法，可用于大型铸锻件和重型机械的CAD和计算机辅助设计。

The Fillet Indication on the Intersecting Line of The Cylinders

The fillet indication on the intersecting line of the cylinders is a difficult problem in the CAD during the mechanical design since all of the CAD/CAM softwares have no such function ,and most of the users have to indicate it with approximate methods. This paper has described the rigorous methods of both design and geometric modeling, which can be used in the CAD for heavy casting and forging as well as heavy machinery.