Assembly features for mechanical product data

This paper deals with a representation of assembly features. Modeling the product at each stage of they assembly process, describing part's faces, assessing accessibility, and modeling technological information make the series of steps that distinguish our model from the ones found in the literature. Such a representation also greatly contributes to the designing of a system that includes the various stages of the product elaboration. To reach our goal, we generated three levels of features pertaining to faces, parts and subassemblies.