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TECHNICAL PAPERS

Multi-Direction Slicing for Layered Manufacturing

[+] Author and Article Information
Prabhjot Singh, Debasish Dutta

Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109-2125

J. Comput. Inf. Sci. Eng 1(2), 129-142 (Mar 01, 2001) (14 pages) doi:10.1115/1.1375816 History: Received August 01, 2000; Revised March 01, 2001
Copyright © 2001 by ASME
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References

Kao, J. H., Pinnilla, J. M., and Prinz, F., 1998, “Evolution of Process Planning for Solid Freeform Planning,” AUTOFACT-98, Detroit, Michigan.
Mazumder,  J., Choi,  J., Nagarathnam,  K., Koch,  J., and Hetzner,  D., 1997, “Direct Metal Deposition of H13 Tool Steel for 3-D Components,” JOM, 49, No. 5, pp. 55–60.
Griffith, M. L., Keicher, D. L., Romero, J. T., Smugeresky, J. E., Atewood, C. L., Harwell, L. D., and Greene, D. L., 1996, “Laser Engineered Net Shaping (LENS) for Fabrication of Metallic Components,” Proceedings of the 1996 ASME International Mechanical Engineering Congress and Exposition, Atlanta, GA.
Marsan, A., and Dutta, D., 1997, “Survey of Process Planning Techniques for Layered Manufacturing,” Proceedings of the 1997 ASME Design Engineering Technical Conference, Sacramento, CA.
Alexander,  P., Allen,  S., and Dutta,  D., 1998, “Part Orientation and Build Cost Determination in Layered Manufacturing,” Computer-Aided Design,30, No. 5, pp. 343–358.
Arcella, F. G., Albott, D. H., and House, M. A., “Rapid Laser Forming of Titanium Structures,” http://www.aerometcorp.com/rapid_laser_paper.htm.
Elber, G., 1999, “Computation of Isoclines of Freeform Parametric Surfaces,” preprint.
Tokuyama,  Y., and Bae,  S., 1999, “An Approximate Method for Generating Draft on a Freeform Surface,” Visual Comput., 15, pp. 1–8.
Majhi, J., Janardan, R., Smid, M., and Gupta, P., 1997, “On Some Geometric Optimization Problems in Layered Manufacturing,” Technical Report No. TR 97-002, Department of Computer Science, University of Minnesota.
Kulkarni, P., and Dutta, D., 1999, “Deposition Strategies and Part Stiffness in Layered Manufacturing,” ASME J. Manuf. Sci. Eng., pp.93–103.
Gupta,  P., Janardan,  R., Majhi,  J., and Woo,  T., 1996, “Efficient Geometric Algorithms for Workpiece Orientation in 4- and 5-axis NC Machining,” Computer-Aided Design,28, No. 8, pp. 577–587.
Woo,  T. C., 1994, “Visibility Maps and Spherical Algorithms,” Computer-Aided Design,26, No. 1, pp. 6–16.
Elber, G., and Cohen, E., 1995, “Arbitrarily Precise Computation of Gauss Maps and Visibility Sets for Freeform Surfaces,” The Third ACM/IEEE Symposium on Solid Modeling and Applications; Salt Lake City, Utah, pp. 271–279.
Lee,  Y. S., and Chang,  Tien-Chien, 1995, “2-Phase Approach to Global Tool Interference Avoidance in 5-Axis Machining,” Computer-Aided Design,27, No. 10, pp. 715–729.
Elber,  G., and Cohen,  E., 1999, “A Unified Approach to Accessibility in 5-axis Free-Form Milling Environments,” Computer-Aided Design,31, No. 13, pp. 795–804.
Qian, X., and Dutta, D., 1999, “Feature Based Fabrication in Layered Manufacturing,” preprint, submitted to ASME J. Mech. Des.
Cormen, T. H., Leiserson, C. E., and Rivest, R. L., 1995, Introduction to Algorithms, McGraw-Hill Book Company.

Figures

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(a) Model with an overhanging feature; (b) supports for the model
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Multi-direction deposition machine
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(a) Model with the build direction; (b) front view of the model; (c) an insert showing the normals on the surface of the model which make an angle greater than the permitted build angle
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Sweeping the unbuildable face
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(a) The model with the build direction; (b) Front view of the model; (c) An insert showing the area enclosed by sweeping AB; (d) Inaccurate estimation of the buildable volume
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(a) Model with silhouette curves; (b) part which can be built; (c) Part which cannot be built along B
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(a) The model; (b) the decomposition of the volume
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Possible collision with the deposition table if the initial build direction is not along the +Z direction
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(a) Sample part; (b) unbuildable face; (c) buildable face; (d) unbuildable part
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Build map determination
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Construction of the build map
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Two cases in which the build map is NULL
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(a) Model; (b) decomposition; (c) build map of the neighborhood
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(a) The model; (b) The decomposition with the transition zone, T; (c) Slices of the transition zone
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Division of a part into Regions 1 and 2
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(a) Model; (b) Decomposition; (c) Supports
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(a) Model; (b) Decomposition tree; (c) Supports

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