Journal of Computer Science and Technology

, Volume 15, Issue 1, pp 27–36 | Cite as

Multi-volume CAD modeling for heterogeneous object design and fabrication

Article

Abstract

The current computer-aided technologies in design and product development, the evolution of CAD modeling, and a framework of multi-volume CAD modeling system for heterogeneous object design and fabrication are presented in this paper. The multi-volume CAD modeling system is presented based on nonmanifold topological elements. Material identifications are defined as design attributes introduced along with geometric and topological information at the design stage. Extended Euler operation and reasoning Boolean operations for merging and extraction are executed according to the associated material identifications in the developed multi-volume modeling system for heterogeneous object. An application example and a pseudo-processing algorithm for prototyping of heterogeneous structure through solid free-form fabrication are also described.

Keywords

CAD CAD modeling heterogeneous modeling multi-volume modeling nonmanifold modeling solid freeform fabrication 

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Copyright information

© Science Press, Beijing China and Allerton Press Inc. 2000

Authors and Affiliations

  1. 1.Department of Mechanical Engineering and MechanicsDrexel UniversityPhiladelphiaU.S.A.

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