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Title Micro Forming of Complex Geometries in Bulk Metallic Glasses and Conventional Materials
Author Gastaldi, Tomaso
Arentoft, Mogens (IPU, Danmarks Tekniske Universitet, DTU, DK-2800 Kgs. Lyngby, Denmark)
Supervisor Hansen, Hans Nørgaard (Institut for Produktion og Ledelse, Danmarks Tekniske Universitet, DTU, DK-2800 Kgs. Lyngby, Denmark)
Institution Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark
Thesis level Master's thesis
Year 2007
Abstract 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.
Pages 127
Original PDF M_Sc_thesis_Tomaso_Gastaldi.pdf (20.07 MB)
Admin Creation date: 2008-02-08    Update date: 2008-02-08    Source: dtu    ID: 210415    Original MXD