Automatic decomposition and refinement of oversized components for rapid prototyping

H. Medellin, T. Lim, J. Corney, J. M. Ritchie, J. B C Davies

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The objective of the work presented in this paper is to enable production of large, complex components on rapid prototyping (RP) machines whose build volume is less than the size of the desired component. Such oversized parts can be produced as fabrications if a suitable subdivision can be generated. The methodology presented here creates a decomposition designed for both Rapid Prototyping (DFRP) and assembly (DFA). Any component can be subdivided by an array of orthogonal planes but the shapes resulting from such a brute force approach could have geometries that are difficult to produce accurately on many rapid prototyping systems. Typically, complications will arise when features have insufficient strength to withstand finishing processes or have a cross-section prone to distortion (e.g. warping) during the build process (e.g. thin sections and cusps). Consequently, the method proposed for partitioning considers potential manufacturing problems and modifies the boundaries of individual components where necessary. As part of the decomposition process, the system also generates complimentary male/female (i.e. matching protrusion/depression) assembly features at the interface between the component parts in order to improve the integrity of the final component. Copyright © 2005 by ASME.

Original languageEnglish
Title of host publicationProceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conferences - DETC2005: 31st Design Automation Conference
Pages1283-1293
Number of pages11
Volume2 B
Publication statusPublished - 2005
EventDETC2005: ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - Long Beach, CA, United States
Duration: 24 Sep 200528 Sep 2005

Conference

ConferenceDETC2005: ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
CountryUnited States
CityLong Beach, CA
Period24/09/0528/09/05

Keywords

  • 3DU
  • Assembly features
  • DFRP
  • Object decomposition
  • Rapid prototyping

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  • Cite this

    Medellin, H., Lim, T., Corney, J., Ritchie, J. M., & Davies, J. B. C. (2005). Automatic decomposition and refinement of oversized components for rapid prototyping. In Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conferences - DETC2005: 31st Design Automation Conference (Vol. 2 B, pp. 1283-1293)