|Autors: Kamburov, V. V., Nikolov, A. A., Dimitrova, R. B., Semenov V. I., Gilev, B. N.|
Title: Distribution non-uniformity of the accumulated plastic strain at 3D simulation of single and multi-angled ECAE processes using a movable Ram-Die
Keywords: severe plastic deformation, equal channel angular extrusion, CAD/CAE software 3D simulation, contact friction
Abstract: Four virtual schemes for realizing the Equal Channel Angular Extrusion (ECAE) using a movable ram-die with different geometries of their deformation spaces (extrusion angles) have been developed and considered. On the basis of the performed simulations using CAD/CAM software, the data on the mean values of effective strain and their distribution are processed depending on the contact friction between the tool and the work-piece. The selected modes are compared and analyzed in terms of effective strain means and their dependence on contact friction. It has been found that the single-angled ECAE-MRD modes allow for a greater mean values of the effective strain compared to multi-angled ECAE patterns. It has been proven that the strain distribution non-uniformity and the filling of the deformation space depend on the contact friction.
Вид: публикация в международен форум, публикация в реферирано издание, индексирана в Google Scholar