Integration of CAD/CAPP/CAM requires a common product information model with CAD as the key process in forming the model.CAD can not only meet the demands of design, but also meet the demands of the subsystems, such a...Integration of CAD/CAPP/CAM requires a common product information model with CAD as the key process in forming the model.CAD can not only meet the demands of design, but also meet the demands of the subsystems, such as CAPP and CAM.The product modelling system based on STEP (PMSS) uses the 1-DEAS system andadopts STEP as its mechanism to exchange product information.PMSS closely integrates with 1-DEAS and takes advantage of the functions of 1-DEAS to meet the demands of CAD/CAPP/CAM integration. For integration with othersystems, PMSS uses management tool for STEP file to manage information required by subsystems.展开更多
Product information model for welding structure plays an important role for the integration of welding CAD/CAPP/CAM. However, existing CAD modeling systems are not capable of providing enough information for subsequen...Product information model for welding structure plays an important role for the integration of welding CAD/CAPP/CAM. However, existing CAD modeling systems are not capable of providing enough information for subsequent manufacturing activities such as CAPP and CAM. A new design approach using feature technique and object oriented programming method is put forward in this paper in order to create the product information model of welding structure. With this approach, the product information model is able to effectively support computer aided welding process planning, fixturing, assembling, path planning of welding robot and other manufacturing activities. The feature classification and representing scheme of welding structure are discussed. A prototype system is developed based on feature and object oriented programming. Its structure and functions are given in detail.展开更多
The Key problems in product modeling for integrated CAD∥CAM systems are the information structures and representations of products.They are taking more and more important roles in engi- neering applications.With the ...The Key problems in product modeling for integrated CAD∥CAM systems are the information structures and representations of products.They are taking more and more important roles in engi- neering applications.With the investigation on engineering product information and from the viewpoint of industrial process,in this paper,the information models are proposed and the definitions of the framework of product information are given.And then,the integration and the consistence of product information are discussed by introducing the entity and its instance.As a summary,the information structures described in this paper have many advantages and natures helpful in engineering design.展开更多
文摘Integration of CAD/CAPP/CAM requires a common product information model with CAD as the key process in forming the model.CAD can not only meet the demands of design, but also meet the demands of the subsystems, such as CAPP and CAM.The product modelling system based on STEP (PMSS) uses the 1-DEAS system andadopts STEP as its mechanism to exchange product information.PMSS closely integrates with 1-DEAS and takes advantage of the functions of 1-DEAS to meet the demands of CAD/CAPP/CAM integration. For integration with othersystems, PMSS uses management tool for STEP file to manage information required by subsystems.
文摘Product information model for welding structure plays an important role for the integration of welding CAD/CAPP/CAM. However, existing CAD modeling systems are not capable of providing enough information for subsequent manufacturing activities such as CAPP and CAM. A new design approach using feature technique and object oriented programming method is put forward in this paper in order to create the product information model of welding structure. With this approach, the product information model is able to effectively support computer aided welding process planning, fixturing, assembling, path planning of welding robot and other manufacturing activities. The feature classification and representing scheme of welding structure are discussed. A prototype system is developed based on feature and object oriented programming. Its structure and functions are given in detail.
文摘The Key problems in product modeling for integrated CAD∥CAM systems are the information structures and representations of products.They are taking more and more important roles in engi- neering applications.With the investigation on engineering product information and from the viewpoint of industrial process,in this paper,the information models are proposed and the definitions of the framework of product information are given.And then,the integration and the consistence of product information are discussed by introducing the entity and its instance.As a summary,the information structures described in this paper have many advantages and natures helpful in engineering design.
