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Stereolithographic Injection Molds for Direct Tooling
The use of stereolithographic core and cavity sets in low volume injection molding is
experiencing steady growth. The use of plastic instead of metal molds raises several issues in
terms ofmold handling, material injection and process cycle requirements. This study focuses on
identifying and understanding these issues and optimizing them for low volume direct tooling
applications. Some experimental observations are presented using DuPont Somos® epoxy
photopolymers and representative mold geometries which identify the critical mold properties
that influence mold life and the injection molded part quality.Mechanical Engineerin