MICROSTEREOLITHOGRAPHY BASED ON DIGITAL MICROMIRROR DEVICE FOR COMPLEX MESO/MICRO STRUCTURES

摘要

This paper describes a Digital Micromirror Device (DMD) based ultraviolet (UV) micro-stereolithography (μ-SL) system developed for rapid prototyping and manufacturing of three dimensional (3D) complex meso/micro structures. Characterization experiments show that the developed the DMD-based imaging system irradiates an entire photopolymer layer at once, providing high curing speed and good resolution. 2D and 3D meso/micro parts were fabricated. High quality meso/micro polymer parts have been used to produce meso tools of electroplated nickel. Furthermore, Polymer nanocomposites, obtained by ultrasonic mixing of the photopolymer and nano-sized ceramic particles, were also experimented for the fabrication of meso/micro parts.