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Author Colton, Jonathan S. LeBaut, Yann.
Source Polymer Engineering & Science. v. 40 no6, June 2000, p. 1360-8.
Abstract The authors investigate thermal effects on injection mold inserts produced by stereolithography (SL). SL is a rapid prototyping process that involves curing a photopolymerizable resin to build a part in a layer-by-layer manner; however, 100 percent cure cannot always be guaranteed. Heat is transferred from a polymer to a mold in an injection molding process. The effects of this heat on SL mold inserts of different cure levels are examined using differential scanning calorimetry. The degree of cure in the inserts changes as the number of injection shots increases. It is found that the force needed to eject a part from a mold containing a SL insert increases as the level of cure in the SL mold increases. XX