2001 (and backfills for previous years) / DB reference years
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Author Colton-JS; Crawford-J; Pham-G; Rodet-V
Source CIRP-Annals-Manufacturing-Technology. v 50 n 1 2001, p 129-132
Abstract Stereolithography rapid tooling materials (typically epoxy-based photopolymers) show great promise for injection molding of limited numbers of parts, greatly reducing the time to product. Yet, they present challenges to designers because of their strength, thermal characteristics, and shorter lifetimes as compared to other mold materials. This paper presents models of the forces generated during the injection molding cycle so as to evaluate the suitability of rapid tools. The models comprise thermal and mechanical loading during injection, cooling shrinkage, and ejection. The effects of process conditions on material properties are studied. Experimental results are presented. 6 Refs. (Auth abstract) XX