THE ESTABLISHMENT OF PART FEATURE CLASS LIBRARY FOR CAD/CAM INTEGRATION

摘要

Feature Technology is the importment way to realize CAD/CAM integration. Feature has become the communication medum of design and manufacture. But a series of problem such as feature's definifion, feature's classification and refinement, feature's express scheme and feature's data structure, are the key of feature technology to application. This paper deeply researched these problem, put forward an object-oriented knowledge expression to express feature class, and used the Express information modelling lanngage to build feature class library, So it can provide avaiable feature information resources for feature -based product modelling system and other systems.