In this paper,a part modeling method based on variable design and group technology(GT)in CAD is proposed. This method has been applied to the development of a practical CAD system, and a satisfactory result has been achieved.

• 讨论了在CAD技术中基于变型设计和成组技术的零件建模方法，并将这种方法应用于一个实际的零件CAD系统的设计中，取得了满意的效果。