Improving Snapfit Design (Parts I & II)
by Chul Lee, BASF

This series of articles provides a basic overview of snap-fit design types and their applications, as well as traditional and improved formulas for snap-fit strength and assembly force. The series also reviews common causes of snap-fit failure and how to overcome them, appropriate materials and processing considerations. Both articles provide links to BASF’s Snap-Fit Design Manual for a downloadable document with discussions of the issues presented here, access to an on-line tool of BASF’s improved formulas for calculating snap-fit design’s deflection and strain, enrollment information for BASF’s Plastics Seminar “Part Design - Assembly of Components,” and reprints of technical articles pertinent to various snap-fit topics.

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