||Micro Forming of Complex Geometries in Bulk Metallic Glasses and Conventional Materials
Arentoft, Mogens (IPU, Danmarks Tekniske Universitet, DTU, DK-2800 Kgs. Lyngby, Denmark)
||Hansen, Hans Nørgaard (Institut for Produktion og Ledelse, Danmarks Tekniske Universitet, DTU, DK-2800 Kgs. Lyngby, Denmark)
||Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark
||The production of microparts is gaining importance due to the trend
of decreasing dimensions of products such as medical devices, micro
electro-mechanical systems, mobile phones or music players.
Forming processes represent an alternative to machining operations
for the production of such micro components. Productivity and
increased strength of the components justify the high investment
costs. Forming and microforming of conventional metals usually
perform in multi-step operations to obtain precise shapes and
strength parts. The small dimensions have changed the knowledge
and the conditions in which the forming process works. The so called
“size effect” and friction are the main issues. Promising alternatives
come from the discovery and development of the bulk metallic
glasses (BMGs). At high temperature the BMGs behave like a highly
viscous liquid, which can easily form even complicated geometries in
one step process.
A conventional silver alloy is compared with a non conventional Mgbases
bulk metallic glass. The processes were entirely designed and
carried on investigating the results.
This report deals with the project “Factory Micrometal”, a part of the
European project Eureka.
Creation date: 2008-02-08
Update date: 2008-02-08