Capp System Based On Pdm Research And Development

With the rapid development of network-. database.. Object-oriented method-. distributed computation-. product data management(PDM) and system integration, enterprises have set higher goals for the CAPP and demand it to build product-oriented designing idea. Furthermore, enterprises require the CAPP to integrate with other related systems (CAD.. CAM.. PDM, etc) and all these will make the CAPP system advance with more concurrency.. integration and intelligence. Firstly, according to the developing trend of the CAPP, the paper analyzes, in detail, the theory and key techniques used in the design of the CAPP system. Then aiming at the process planning of the general parts and considering the common problems existing in CAPP systems, the paper introduces the function and system structure of the CAPP system based on PDM. Among these, the author emphasizes the system抯 advantage on data management and sharing ---- the establishment of the process data management system based on the network. Then, the paper explains the information input module.. feature machining-chain inference module and process planning module in particular. Process-card is the main output form of the process planning and in order to adapt to the various card formats in different plants, the author develops the process- card-editing tool to offer the function of editing the cards in random formats. Finally, the author discussed the idea of system integration between CAPP and PDM and the management of process flow based on the PDM.