Mechanical Engineering Faculty Research

Title

Cure Depth Control for Complex 3D Microstructure Fabrication in Dynamic Mask Projection Microstereolithography

Document Type

Article

Publication Date

2009

Abstract

– The paper's aim is to explore a method using light absorption for improving manufacturing of complex, three‐dimensional (3D) micro‐parts with a previously developed dynamic mask projection microstereolithography (MSL) system. A common issue with stereolithography systems and especially important in MSL is uncontrolled penetration of the ultraviolet light source into the photocrosslinkable resin when fabricating down‐facing surfaces. To accurately fabricate complex 3D parts with down‐facing surfaces, a chemical light absorber, Tinuvin 327™ was mixed in different concentrations into an acrylate‐based photocurable resin, and the solutions were tested for cure depths and successful micro‐part fabrication.

Publication Title

Rapid Prototyping Journal

Volume

15

Issue

1

First Page

59

Last Page

70