Research And Development On The Gating System CAD Of Steel Casting Based On UG

Casting process design is the key step of the casting process. With the development of computer technology, more and more research are made on computer aided process design. Among these, 3D casting process CAD system has become the mainstream. It has the virtues of complete geometrical information, intuitionistic design result and highly integration with CAE/CAM systems. This article has made some research on 3D casting process CAD system based on Unigraphics. After analyzing the actuality and trend about casting process CAD, A developing routing of high efficiency drawing is established. According to this, a gating design system for cast steel is developed using Microsoft VC6.0 and UG/Open API. Because of the complexity of casting process design, the CAD system is designed to be composed of several modules. And in order to reduce the interference between modules, part files for each module are designed to be the components of an UG assembly. The gating CAD system is a main module of the casting process CAD software. In this article, the design of gating CAD system is composed of two parts: the design and the drawing. In design part, A method of calculating the gating system parameters is achieved. And in drawing part, the drawing, editing, deleting, moving and rotating of the gating system are developed based on the feature modeling system of Unigraphics. Also, the connection of database and the bounding-box calculation of solids are illustrated in this article. The gating design system has achieved the goal of high efficiency drawing. It can be used to make the gating design more convenient. Based on this system, a more practical casting process CAD system can be built further.