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.

References

    Issue

    16th International conference of Tribology SerbiaTrib'19, Proceedings on Engineering Sciences, vol. 1, issue 1, pp. 124-132, 2019, Serbia, DOI: 10.24874/PES01.01.060

    Вид: публикация в международен форум, публикация в реферирано издание, индексирана в Google Scholar