This paper presents the method of fabrication of textured three dimensional (3D) microstructures in single scan of laser beam. The textured 3D microstructures are obtained on one of the free surface (surface opposite to the substrate) of the microstructure. Fabrication of textured 3D microstructure is achieved using newly developed 3D microfabrication process termed as ‘Bulk lithography’. In this process the required depth variation is obtained during fabrication by allowing unconstrained depth photopolymerization and varying laser exposure while scanning. Hence, representative experimental results of dimensionless cured depth against dimensionless energy were obtained. Three different regimes of cured depth namely absorption, transition and scattering were observed under wide energy exposure. A predefined texture can be incorporated in CAD model itself and the structures can be fabricated when restricted to absorption dominant regime. However, the novelty of the proposed method lies in a distinct phenomenon observed in transition and scattering regime based on characteristic multiple scattering leading to textured surfaces in these regimes.. Further, it is observed experimentally that these textures are function of the exposure energy and are hypothyzed because of scattering of light.
Skip Nav Destination
ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing
June 4–8, 2012
Notre Dame, Indiana, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-5499-0
PROCEEDINGS PAPER
Fabrication of Textured 3D Microstructures Using ‘Bulk Lithography’ Available to Purchase
Prasanna Gandhi,
Prasanna Gandhi
Indian Institute of Technology Bombay, Mumbai, MH, India
Search for other works by this author on:
Kiran Bhole,
Kiran Bhole
Indian Institute of Technology Bombay, Mumbai, MH, India
Search for other works by this author on:
Naresh Chaudhari
Naresh Chaudhari
Indian Institute of Technology Bombay, Mumbai, MH, India
Search for other works by this author on:
Prasanna Gandhi
Indian Institute of Technology Bombay, Mumbai, MH, India
Kiran Bhole
Indian Institute of Technology Bombay, Mumbai, MH, India
Naresh Chaudhari
Indian Institute of Technology Bombay, Mumbai, MH, India
Paper No:
MSEC2012-7357, pp. 959-964; 6 pages
Published Online:
July 19, 2013
Citation
Gandhi, P, Bhole, K, & Chaudhari, N. "Fabrication of Textured 3D Microstructures Using ‘Bulk Lithography’." Proceedings of the ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing. ASME 2012 International Manufacturing Science and Engineering Conference. Notre Dame, Indiana, USA. June 4–8, 2012. pp. 959-964. ASME. https://doi.org/10.1115/MSEC2012-7357
Download citation file:
10
Views
Related Proceedings Papers
Related Articles
Monte Carlo Model for Determination of the Role of Heat Generation in Laser-Irradiated Tissue
J Biomech Eng (November,1997)
Heat Generation in Laser Irradiated Tissue
J Biomech Eng (February,1989)
Experimental Study of the Effect of Dense Spray on Drop Size Measurement by Light Scattering Technology
J. Eng. Gas Turbines Power (January,1992)
Related Chapters
The MCRT Method for Participating Media
The Monte Carlo Ray-Trace Method in Radiation Heat Transfer and Applied Optics
Model and Simulation of Low Elevation Ground-to-Air Fading Channel
International Conference on Instrumentation, Measurement, Circuits and Systems (ICIMCS 2011)
Scattering of Out-Plane Line Source Load by a Shallow-Embedded Circular Lining Structure and the Ground Motion
Geological Engineering: Proceedings of the 1 st International Conference (ICGE 2007)