ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
As demand for complex precision parts increase, the existing fabrication methods such asMEMS, and LIGA technology have technical limitations with regard to high precision, high aspectratio, and high complexity. A microstereolithography technology based on DMDTM(DigitalMicromirror Device) can meet these demands. DMD enables a system to handle dynamic patterns. Inthis technology, the same standard format of the conventional rapid prototyping system, the STL file,is used, and 3D parts are fabricated by stacking layers that are sliced as 2D section from STL file.Whereas in conventional methods, the resin surface is cured by scanning laser beam spot according tothe section shape, but in this research, we used an integral process which enabled the resin surface tobe cured by one irradiation. In this paper, we dealt with the dynamic pattern generation and DMDoperation to fabricate microstructures. Firstly, the microstereolithography apparatus and processwere discussed. Secondly, the DMD operation according to mirror tilting, and optimal mounters forDMD and reflecting mirror according to light path were described. And thirdly, complex 3Dmicrostructures were demonstrated
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.339.473.pdf
Permalink