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《Journal of Beijing University of Aeronautics and Astronautics》 2007-02
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Core process skeleton based process planning during the early stage of product development

Wei Li Zheng Lianyu(School of Mechanical Engineering and Automation,Beijing University of Aeronautics and Astronautics,Beijing 100083,China)  
The early stage of product development has a crucial effect on capability,cost and quality of products.Research on theory and approach of early process planning was based on feature information,and could not utilize rough-granularity incomplete product information.Therefore,core process skeleton based process planning approach was proposed on the basis of key characteristics which have been proposed to express rough-granularity incomplete product information. Core process planning is a kind of abstract of process plans which satisfy key characteristics requirement,and it expresses core process of various variation of product/part family.Process plans can be configured rapidly according to embranchment and existence rules.The procedure of process planning on the basis of core process skeleton includes four steps: determining product/part family,searching core process skeleton,configuring core process and process route planning.Validity rule,principle rule and customized rule were employed to assure veracity of process planning.Finally,machining process of the girder of the wing was used to validate feasibility of this approach.
【CateGory Index】: TB472
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