An automatic 3D CAD model errors detection method of aircraft structural part for NC machining | Zendy

Bo Huang | Zendy; Changhong Xu | Zendy; Rui Huang | Zendy; Shusheng Zhang | Zendy

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An automatic 3D CAD model errors detection method of aircraft structural part for NC machining

Author(s) -

Bo Huang,

Changhong Xu,

Rui Huang,

Shusheng Zhang

Publication year - 2015

Publication title -

journal of computational design and engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.764

H-Index - 24

eISSN - 2288-5048

pISSN - 2288-4300

DOI - 10.1016/j.jcde.2015.06.008

Subject(s) - cad , machining , heuristics , engineering drawing , computer science , graph , heuristic , computer aided design , feature (linguistics) , engineering , artificial intelligence , mechanical engineering , theoretical computer science , operating system , linguistics , philosophy

Feature-based NC machining, which requires high quality of 3D CAD model, is widely used in machining aircraft structural part. However, there has been little research on how to automatically detect the CAD model errors. As a result, the user has to manually check the errors with great effort before NC programming. This paper proposes an automatic CAD model errors detection approach for aircraft structural part. First, the base faces are identified based on the reference directions corresponding to machining coordinate systems. Then, the CAD models are partitioned into multiple local regions based on the base faces. Finally, the CAD model error types are evaluated based on the heuristic rules. A prototype system based on CATIA has been developed to verify the effectiveness of the proposed approach

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