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Abstract: With the development of modern industry, sheet-metal parts in mass production have been widely applied in mechanical, communication, electronics, and light industries in recent decades; but the advances in sheet-metal part design and manufacturing remain too slow compared with the increasing importance of sheet-metal parts in modern industry. This paper proposes a method for automatically extracting features from an arbitrary solid model of sheet-metal parts; whose characteristics are used for classification and graph-based representation of the sheet-metal features to extract the features embodied in a sheet-metal part. The extracting feature process can be divided for valid checking of the model geometry, feature matching, and feature relationship. Since the extracted features include abundant geometry and engineering information, they will be effective for downstream application such as feature rebuilding and stamping process planning.

[1] Agarwal, S.C., Waggenspack, W.N., 1992. Decomposition method for extracting face topologies from wireframe models. Computer-Aided Design, 24(3):123-140.

[2] Bridarrat, R., Jan de Kraker, K., Bronsvoort, W.F., 1998. Representation and management of feature information in a cellular model. Computer-Aided Design, 30(4):301-313.

[3] Cheok, B.T., Nee, A.Y.C., 1998. Trends and developments in the automation of design and manufacture of tools for metal stampings. Journal of Materials Processing Technology, 75(1-3):240-252.

[4] Der-Baau, P., Chen, Z., Li, R.K., 1990. Automatic 3D machining feature extraction from 3D CSG Solid input. Computer-Aided Design, 22(5):400-415.

[5] Devarajan, M., Kamran, M., Nnaj, B.O., 1997. Profile offsetting for feature extraction and feature tool mapping in sheet metal. Int. J. Prod. Res, 35(6):1593-1607.

[6] Gavankar, P., Henderson, M.R., 1990. Graph-based extraction of protrusions and depressions from boundary representations. Computer-Aided Design, 22(7):543-562.

[7] Han, J.Y., Aristides, A.G., Requicha, 1998. Feature recognition from CAD Models. IEEE Computer Graphics and Applications, (Mar.(Apr.):80-94.

[8] Hlentz, D., Sowerby, R., 1993. Feature extraction of concave and convex regions and their intersections. Computer-Aided Design, 25(7):421-437.

[9] Jagirdar, R., Jain, V.K., Batra, J.L., 2001. Characterization and identification of forming features for 3-D sheet metal components. International Journal of Machine Tools & Manufacture, 41(12):1295-1322 .

[10] Ji, G.P., 2000. Current status of electronic components in China. World of Electronic Products, 9:15 (in Chinese).

[11] Kyprianou, L.K., 1980. Shape Classification in Computer-Aided Design. PhD Thesis, Computer Laborator, University of Cambridge.

[12] Li, C.Y., Li, J.J., Wen, J.Y., Xiao, X.Z., 2001. HPRODIE: using feature modeling and feature mapping to speed upprogressive die design. Int. J. Prod. Res., 39(18):4133-4151.

[13] Liu, B.F., Liu, J., 2002. Detail feature recognition and decomposition in solid model. Computer-Aided Design, 34(5):405-414.

[14] Prabhakar, S., Henderson, M.R., 1992. Automatic form-feature recognition using neural-network-based techniques on boundary representations of solid model. Computer-Aided Design, 24(7):381-394.

[15] Tan, C.N., 1993. Synopsis of Keynote Address by Tan Chin Nam, Managing Director, Economic Development Board. Proceedings MANUTECH, Singapore.

[16] Woo, T.C., 1982. Feature Extraction by Volume Decomposition. Proc. Conf. CAD/CAM Technology in Mechanical Engineering. Cambridge, Mass, p.76-94.