Friction in metal microforming (CROSBI ID 627569)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Grizelj, Branko ; Grizelj, Dejan
engleski
Friction in metal microforming
Abstract The work carried out some analysis microforming. Microforming in metal forming the production of small dimensions in at least two axes not exceeding 2mm. Technology is microforming differs in many ways from the conventional technology of metal forming. It is well recognized that expertise, experience, and theoretical knowledge available in conventionally sized metal forming cannot be simply transferred to microforming. This is due to so-called size effects which have distinct effect on material flow, friction and other process characteristics. Today, process simulation is a standard tool in industry, applied to support process lay-out and its optimization. However, as it is based on continuum mechanics, it is size-invariant at least for cold forging. Hence, it is obvious that due to the size effects, conventional simulation cannot be applied to microforming. In this paper two approaches are presented how to model specific phenomena of microforming in particular concerning material flow and friction. These are the mesoscopic model and a combination of the general friction law and mechanical rheological model, respectively. Both models are brought together to be finally applied to a combined micro cold-extrusion process.
metalforming; microforming; friction
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Podaci o prilogu
203-2011.
2015.
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objavljeno
Podaci o matičnoj publikaciji
PLIN 2015 ; 13. SKUP O PRIRODNOM PLINU, TOPLINI I VODI ; 6. MEĐUNARODNI SKUP O PRIRODNOM PLINU, TOPLINI I VODI
Raus, Pero ; Galeta, Tomislav ; Kozak, Dražan ; Raos, Marija ; Stojšić, Josip ; Tonković, Zlatko
Osijek: Strojarski fakultet Sveučilišta u Slavonskom Brodu
Podaci o skupu
PLIN 2015
poster
23.09.2015-25.09.2015
Osijek, Hrvatska