Among the so-called 'traditional processes', extrusion represents one of the most diffused and utilized, since it permits the production of many industrial parts and raw materials. Of course, relevant knowledge on process mechanics and practice is nowadays available in the technical literature and in properly constructed handbooks. On the other hand, the introduction of finite element simulation, as a powerful analysis and design tool, opened new perspectives. Nowadays many researchers are involved in research tasks aimed at explaining some peculiar extrusion aspects. In this paper the effectiveness of numerical simulation for a complex three-dimensional extrusion process analysis is investigated; in particular, the case of a lack of alignment between the billet/ram axis and the die axis is taken into account in order to verify the effectiveness of numerical predictions as it affects extrusion load and profile distortion. With this aim a proper experimental equipment was developed in order to impose a known misalignment to the die. OI Filice, Luigino/0000-0002-2476-6815 ZB 0 Z8 0 ZR 0 ZS 0
On the effectiveness of numerical simulation in the prediction of profile distortion in extrusion
FILICE, Luigino
;Gagliardi F;
2005-01-01
Abstract
Among the so-called 'traditional processes', extrusion represents one of the most diffused and utilized, since it permits the production of many industrial parts and raw materials. Of course, relevant knowledge on process mechanics and practice is nowadays available in the technical literature and in properly constructed handbooks. On the other hand, the introduction of finite element simulation, as a powerful analysis and design tool, opened new perspectives. Nowadays many researchers are involved in research tasks aimed at explaining some peculiar extrusion aspects. In this paper the effectiveness of numerical simulation for a complex three-dimensional extrusion process analysis is investigated; in particular, the case of a lack of alignment between the billet/ram axis and the die axis is taken into account in order to verify the effectiveness of numerical predictions as it affects extrusion load and profile distortion. With this aim a proper experimental equipment was developed in order to impose a known misalignment to the die. OI Filice, Luigino/0000-0002-2476-6815 ZB 0 Z8 0 ZR 0 ZS 0I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
