Fixtures accurately locate and secure a part during machining operations. Various computer-aided fixture design (CAFD) methods have been developed to reduce design costs associated with fixturing. One approach uses a case-based reasoning (CBR) method where relevant design experience is retrieved from a design library and adapted to provide a new design solution. Indexing design cases is a critical issue in CBR, and CBR systems can suffer from an inability to distinguish between cases if indexing is inadequate. This paper presents CAFixD, a CAFD methodology that adopts a rigorous approach to defining indexing attributes based upon axiomatic design functional requirement decomposition. A design requirement is decomposed in terms of functional requirements, physical solutions are retrieved and adapted for each individual requirement, and the design is then reconstituted to form a complete fixture design. This paper presents the CAFixD framework and operation, and discusses in detail the indexing mechanisms used.
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March 2006
Technical Papers
CAFixD: A Case-Based Reasoning Fixture Design Method. Framework and Indexing Mechanisms
Kevin Rong,
Kevin Rong
Computer Aided Manufacturing Laboratory,
e-mail: rong@wpi.edu
Worcester Polytechnic Institute
, 100 Institute Road, Worcester, MA 01609-2280
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David C. Brown
David C. Brown
Department of Computer Science,
Worcester Polytechnic Institute
, 100 Institute Road, Worcester, MA 01609-2280
Search for other works by this author on:
Kevin Rong
Computer Aided Manufacturing Laboratory,
Worcester Polytechnic Institute
, 100 Institute Road, Worcester, MA 01609-2280e-mail: rong@wpi.edu
David C. Brown
Department of Computer Science,
Worcester Polytechnic Institute
, 100 Institute Road, Worcester, MA 01609-2280J. Comput. Inf. Sci. Eng. Mar 2006, 6(1): 40-48 (9 pages)
Published Online: March 18, 2005
Article history
Received:
July 13, 2004
Revised:
March 18, 2005
Citation
Boyle, I. M., Rong, K., and Brown, D. C. (March 18, 2005). "CAFixD: A Case-Based Reasoning Fixture Design Method. Framework and Indexing Mechanisms." ASME. J. Comput. Inf. Sci. Eng. March 2006; 6(1): 40–48. https://doi.org/10.1115/1.2161229
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