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TECHNICAL PAPERS

Feature Based Macroplanning Including Fixturing

[+] Author and Article Information
V. Sundararajan, Paul K. Wright

Mechanical Engineering Dept., University of California, Berkeley, CA 94720

J. Comput. Inf. Sci. Eng 2(3), 179-191 (Jan 02, 2003) (13 pages) doi:10.1115/1.1526506 History: Received October 01, 2001; Revised October 01, 2002; Online January 02, 2003
Copyright © 2002 by ASME
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References

Shah, Jami, J., and Mantyla, Martti, 1995, Parametric and Feature-Based CAD/CAM-Concepts, Techniques and Applications, A. Wiley-Interscience Publication, John-Wiley & Sons, Inc.
van Houten, F. J. A. M., van’t Erve, A. H., and Kals, H. J. J., 1989, “PART, A Feature Based CAPP System,” 21st CIRP International Seminar on Manufacturing Systems, Stockholm.
Ong,  S. K., and Nee,  A. Y. C., 1996, “An Intelligent Fuzzy Set-up Planner for Manufacturability and Fixturability Evaluations,” International Journal of Production Research Int. J. Prod. Res., 34(3), pp. 665–686.
Chou,  Y.-C., 1997, “Automated Planning and Design of Fixtures for Complex Parts,” International Journal of Computer Applications in Technology, 10 (3/4), pp. 183–197.
Gupta, S. K., Regli, W., Das, D., and Nau, D. S., 1997, “Automated Manufacturability Analysis: A Survey, Research in Engineering Design,” 9 (3), Springer-Verlag, pp. 168–190.
Marri,  H., Gunasekaran,  A., and Grieve,  R., 1998, “Computer-aided Process Planning: A State of Art,” The International Journal of Advanced Manufacturing Technology, 14 (4), pp. 261–268.
Gupta,  S. K., 1997, “Using Manufacturing Planning to Generate Manufacturability Feedback,” ASME J. Mech. Des., 119(1), pp. 73–79.
Gupta,  S. K., Nau,  D. S., and Regli,  W. C., 1998, “IMACS: A Case Study in Real-world Planning,” IEEE Intell. Syst., 13(3), pp. 49–60.
Hirode, K., and Shah, J., 1999, “Metrics for Evaluating Machining Process Plans,” Proceedings of the 1999 Design Engineering Technical Conference, September 12–15, 1999, Las Vegas, Nevada.
Shirur,  A., Shah,  J., and Hirode,  K., 1998, “Machining Algebra for Mapping Volumes to Machining Operations for Developing Extensible Generative CAPP,” Journal of Manufacturing Systems 17(3), Society of Manufacturing Engineers, pp. 167–82.
Hayes, C. C., Gaines, D. M., Faheem, W., and Castano, J. F., 1997, “MAPP: A Matrix Architecture for Process Planning,” IEEE International Symposium on Assembly and Task Planning (ISATP), pp. 48–53.
Gaines,  D. M., Castano,  F., and Hayes,  C. C., 1999, “MEDIATOR: A Resource Adaptive Feature Recognizer that Intertwines Feature Extraction and Manufacturing Analysis,” ASME J. Mech. Des., 121, pp. 145–158.
Sundararajan,  V., and Wright,  P. K., 2000, “Identification of Multiple Feature Representation by Volume Decomposition for 2.5 D Components,” ASME J. Manuf. Sci. Eng., 122(1), pp. 280–290.
Stori, J., 1998, “Machining Operation Planning Based on Process Simulation and the Mechanics of Milling,” U.C. Berkeley Mechanical Engineering, Ph.D Thesis, May 1998
Sarma,  S., and Wright,  P. K., 1997, “Reference Free Part Encapsulation: A New Universal Fixturing Concept,” J. Manuf. Syst., 16(1), pp. 35–47.
Sarma, S. E., 1995, “A Methodology for Integrating CAD and CAM in Milling,” U.C Berkeley Mechanical Engineering, Ph.D Thesis.
DeMeter,  E. C., 1994, “Restraint Analysis of Fixtures which Rely on Surface Contact,” J. Eng. Ind., 116, pp. 207–215.
D’Souza,  R., Wright,  P. K., and Sequin,  C., 2001, “Automated Microplanning for 2.5-D Pocket Machining,” J. Manuf. Syst., 20(4), pp. 288–296.
Ahn,  S., Sundararajan,  V., Smith,  C., Kannan,  B., D’Souza,  R., Sun,  G., Mohole,  A., Wright,  P., Kim,  J., McMains,  S., Smith,  J., and Sequin,  C., 2001, “CyberCut: An Internet-based CAD/CAM system,” J. Comput. Inf. Sci. Eng., 1(1), pp. 52–60.

Figures

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Definition of 2.5D feature and freeform feature
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Definition of open edges and through features (a) concept of open edges; (b) open edges between feature for freedom parts; (c) through features
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Alternate representations from +x and +z direction
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Complete feature graph for the example part
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Classification of features
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Classification of features
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Preprocessing for macroplanning
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Result of preprocessing on example component
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Inprocess shape for the setup
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Planning for fixturing using toe-clamps
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Stability under gravity
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Computing theoretical clamping regions
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Checking for the strength of component under clamps
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Algorithm for computing theoretical clamping regions for vise
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Algorithm for setup planning
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Obtaining the total inprocess shape
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Detailed planning for features
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Possible microplanner failure
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Examples of parts for vise clamping
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Example parts for toe-clamps

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