MICROFORMING IN METAL FORMING (CROSBI ID 623548)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Grizelj, Branko ; Jurković, Milan; Stoić, Marija ; Kokorić, Slaven ; Milković, Marijana ; Posavac, Barbara ; Grizelj, Martina
engleski
MICROFORMING IN METAL FORMING
The work carried out some analysis mikroforming. Mikroforming in metal forming the production of small dimensions in at least two axes not exceeding 2mm. Technology is mikroforming 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. Microforming coarse grains, macroforming fine grains.
metal forming ; microforming
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Podaci o prilogu
94-103.
2015.
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objavljeno
9-772303-56680-4
Podaci o matičnoj publikaciji
2nd International Conference NT-2015 PROCEEDINGS "NEW TECHNOLOGIES" DEVELOPMENT AND APPLICATION
Prof. dr. sc. Isak, Karabegović ; Akademik Vlatko, Določek ; Prof. dr. sc. Sead, Pašić
Mostar: SOCIETY FOR ROBOTICS OF BOSNA AND HERZEGOVINA
2303-5668
Podaci o skupu
NEW TECHNOLOGIES
predavanje
24.04.2015-25.04.2015
Mostar, Bosna i Hercegovina