A Method for Attachment Design Concept Development in Integral Snap-fit Assemblies

[+] Author and Article Information
Suat Genc

Plug Power Latham, NY 12110

Robert W. Messler

Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180

Gary A. Gabriele

Mechanical Engineering, Aeronautical Engineering and Mechanics, Rensselaer Polytechnic Institute, Troy, NY 12180

J. Mech. Des 122(3), 257-264 (Jan 01, 1999) (8 pages) doi:10.1115/1.1287926 History: Received January 01, 1999
Copyright © 2000 by ASME
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Identification of possible part combinations and assembly procedures
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Identification of alternative locking feature pairs
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Part constraining process to obtain a basis design
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Enhanced attachment concepts
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Structural performance value for the example attachment concepts
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a) Determination of relative manufacturing cost penalty in which the number of external and internal undercuts are counted, and mold dividing surface complexity is considered, b) example concepts to be evaluated based on assembly cost
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Alternative representative shapes generated for example parts by using Genc’s classification scheme (Genc, et al., 1997a)
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Examples of generating alternative representative shapes for parts to be attached in an assembly. These parts shown are a speaker and cover for a phone hand-set.
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Genc’s hierarchical classification scheme of representative shapes (from Genc, et al., 1997a)
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Assembly cost penalty for example concepts
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Steps for generating and evaluating alternative attachment concepts (from Genc, et al., 1997b)
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Integral attachment design in the overall design process




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