This paper develops digital aircraft sheet metal manufacturing technology. The architecture of digital sheet metal manufacturing system is proposed based on the classification of sheet metal manufacturing information. The essence of digital manufacturing is definition, management and transfer of information, and the key technologies are brought forward and described. It is pointed out that knowledge-based manufacturing elements design is necessary to make digital technology efficient. The management of all kinds of sheet metal manufacturing elements information is to build single source of manufacturing data. Multi-state model-based digital transfer and coordination method is presented to provide a foundation for digital manufacturing of sheet metal part. The application of digital sheet metal manufacturing is exemplified with an aircraft sheet metal part. The application result is compared to that of the traditional analog transfer technology. It is shown that the developed technology can improve part quality, shorten manufacturing time and lower manufacturing cost.

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