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Multi-volume CAD modeling for heterogeneous object design and fabrication

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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.

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Authors and Affiliations

  1. Department of Mechanical Engineering and Mechanics, Drexel University, 19104, Philadelphia, PA, U.S.A.

    Sun Wei

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  1. Sun Wei
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Correspondence to Sun Wei.

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SUN Wei is Drexel’s first Pei Chi Chou Professorship Holder in the Department of Mechanical Engineering and Mechanics and Director of Rapid Product Development Center at Drexel. Dr. Sun received his Ph.D. degree in Mechanical Engineering in 1992. His current research interests are in the area of modern design and manufacturing, computer-aided technologies for rapid product development and product realization, modeling and simulation of heterogeneous composites and tissue engineering, concurrent engineering and rapid prototyping. He has extensive expertise and experience in using integrated CAD/CAE/CAM and advanced design and manufacturing tools for research, education, and engineering consultation. In his role as the Director of Rapid Product Development Center since 1994, Dr. Sun has assisted over 100 design and manufacturing companies in the Greater Philadelphia area with their technology advancement and product competitiveness. As a Professor in the Mechanical Engineering Department, Dr. Sun has developed and taught a number of CAD and CAD/CAM courses at the graduate and undergraduate level and has supervised Doctoral and Master degree graduate students. Dr. Sun has been invited to conduct many lectures, seminars, workshops and conference presentations in the United States, Hong Kong and China, and has published many technical papers and lecture books in the research area he is working on. Dr. Sun currently also serves as a Visiting Professor in Hefei University of Technology, Hefei, China, and a Visiting Professor in Gansu University of Technology, Lanzhou, China. He is currently a member of American Academy of Mechanics (AAM), American Society of Mechanical Engineering (ASME), American Society of Engineering Education (ASEE), Society of Manufacturing Engineering (SME), and Society of Rapid Prototyping.

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Sun, W. Multi-volume CAD modeling for heterogeneous object design and fabrication. J. Comput. Sci. & Technol. 15, 27–36 (2000). https://doi.org/10.1007/BF02951924

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  • DOI: https://doi.org/10.1007/BF02951924

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