Feature representation product model for a progressive die CAD/CAM system

In this paper, a product data model for progressive die CAD/CAM system is introduced. A special form feature representation model is proposed as part of a product data model to improve design representation. The features are defined as a form feature tree associated with various types of technical constraints such as tolerance and relations for supporting the integration of solid modeling and manufacturing applications. Several examples are presented to illustrate the model and its applications.