ISSN:
1662-9752
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:
The rapid market need of MEMS (Micro Electromechanical System) and metal micropartsare increasing gradually. The plastic microforming has received more interests and applications inMEMS because it ensures high precision and manufacturing efficiency. However, it raises the higherdemand on the microforming and plastic processing technology. Here we present one new process tomicro-extrude microparts with laser-aided heating method. The new process is to selectively heat theworkpiece with the laser radiation method to the suitable temperature that is between roomtemperature and recrystallization temperature, and to extrude the workpiece. This process ischaracterized by decreasing the influence of strain strengthening and lowering the resistance todeformation, and increasing the uniformity of material flow. The key elements of the approachconcerning the warm micro-extrusion and temperature control, such as process parameters, laserheating system, micro-extrusion die structure, have been advanced. Furthermore, an important aspectof the research is that the developed system and theory of micro warm extrusion based on laserheating can be explored for further investigation and understanding of plastic microforming
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.575-578.462.pdf
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