THE GEOMETRIC MODELS OF BENDING PROCESS INTERACTIVE PLANNING ORIENTED

The main task of Computer Aided Process Planning is to choose the reasonable process method and process sequence of parts．In accordance with the main content of bend process planning such as bend step design and unbend operation，this paper present a geometric model for bend process planning，which is applied successfully in automobile stamping CAPP system and solved the key technology such as unbend operation， bend step planning and product geometric modeling etc．