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:
Mechanical micro deep drawing becomes a more and more industrial relevant process.But due to size effects new challenges are involved in this process compared to macro deepdrawing. The size effects cause an increase of friction and thus hinder the material flow. The changeof friction in mechanical micro deep drawing is subject of the presented investigations in this paper.Additionally to this, a new non-mechanical micro deep drawing process is presented, whereby alaser beam acts as a punch. This new laser deep drawing process is based on a totally differentmechanism compared to thermal laser forming, e.g. forming by laser induced thermal stresses: Thelaser produces a pulse with an extremely high power density, which causes plasma generation at thetarget and thus a shock wave. The shock wave can be used as in explosive forming, but is smallerand easier to generate. Recent investigations showed that using this technology laser deep drawingis possible with a sheet metal out of Al 99.5 and a thickness of 50 'm. The deep drawing processwas carried out with a die diameter of 4 mm and shows promising results
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/54/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.344.799.pdf
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