This news article was originally written in Spanish. It has been automatically translated for your convenience. Reasonable efforts have been made to provide an accurate translation, however, no automated translation is perfect nor is it intended to replace a human translator. The original article in Spanish can be viewed at Desarrollo de un sistema de microfresado para componentes y útiles de moldeo empleados en microsistemas para microfluídica
Machining
Development of a system of microfresado for components and moulding supplies employees in Microsystems for Microfluidics
JJ. Márquez Sevillano, J.M. Pérez García, j. twisty rivers, a. Vizán Idoipe
ETSI Industriales de Madrid c/Jose Gutierrez Abascal, 2 28006 Madrid
ETSI Industriales de Madrid c/Jose Gutierrez Abascal, 2 28006 Madrid
Tel.: 913363123, e-mail: jmarquez@dimf.etsii.upm.es
01/12/20021. Introduction
Micromecánica manufacturing engineering deals with processes based on emerging technologies such as the microfresado (Micromilling) [1], microelectroerosion (MicroElectroDischargeMachining) and micro-machining by laser (Laser Micromachining) for the realization of prototypes of microcomponentes used in the development of Microsystems, about not siliceous materialsbasically metallic and polymeric. And as a technology base for the development of tools of moulding in other also emerging technologies oriented towards mass parts in polymer production such as the moulding by microinjection (Microinjection Molding) [2] and forming in hot (Hot Embossing) [3]. The common denominator of these technologies is the use of numerically controlled with very high precision of positioning machines that allow work on the materials cited with details less than 1µm. The great flexibility of the systems of automatic positioning used, allows the manufacturing of variety of geometries at a very low cost comparatively to the of other manufacturing technologies employed in Microsystems.
2 Experimental
The Group's manufacturing engineering has developed the system shown in the figure to carry out the operations of microfresado. The table reflects the fundamental characteristics of the developed equipment.
3. Results and discussion
In the Se figure reflected the type of work done in the microfresado tests carried out.
4 Conclusions
An experimental system of microfresado has been developed to develop prototypes of components not siliceous (metallic and polymeric) for employees in fluidic Microsystems. The system has proved effective also in the manufacture of molds for use in replica in polymer Microtechnologies.
Figure slots of 500 µm with 50 µm wall thickness
5 References
[1] Manufacturing of Microstructure surfaces using ultraprecision turning, milling and shopping. Weck M. et to the. Proceedings of the 1ST International EUSPEN conference 1999.
[2] Manufacturing of micro parts by micro molding techniques. Viotter et to the. Proceedings of the 1ST International EUSPEN conference 1999.
[3] Hot embossing as a method for the fabrication of polymer high aspect ratio structures Becker, H. Heim, u. Sensors and Actuators 83 2000 130-135
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