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on degree work topic

Own published works and science papers

Estimation of aluminum alloys` ductility resource exhaustion in process of radial extrusion. (ru): Author: A. Termenzhy.
Scientific adviser: Yan Beygelzimer.

Related science papers

Forming during radial extrusion of flanges. (ru): Authors: L. Alieva, S. Martynov, Ya. Zhbankov.
Source: Herald of the Donbass State Engineering Academy.
Technological processes of cold lateral extrusion. (ru): Author: I. Aliev.
Source: Journal "Forging and stamping production", 1988 г. (№ 6), с. 1-4.
Program for calculating damage during cold plastic deformation of metals for postprocessor DEFORM 3D. (ru): Author: A. Vlasov.
Source: "TESIS" company.; Moscow State Technical University n.a. N.E. Bauman.
The influence of die geometry on the radial extrusion processes.: Authors: Beong Du Ko, Dong Joon Kim, Soo Hyung Lee, Boeng Bok Hwang.
Summary: Three variants of radial extrusion are analyzed by simulation work. Case I involves forcing a cylindrical billet against a flat die. In case II, the upper punch forces a billet against a stationary punch recessed in the lower die. In case III, both the upper and lower punches move together toward the center of the billet. Major process parameters are identified as the relative gap height and the die corner radius in constant relative deformation. The simulation work is performed by the rigid-plastic finite element method. The validity of the modeling and simulation work for this process is verified by comparison with experimental data in terms of forming load. The simulation results show good agreement with the experimental data. Based on the simulation results, the different process parameters are related to the different material flow. Due to various die motions, a certain pattern in the material flow is shown in each deformation case. The die geometry has a significant influence on the material flowinto the flange gap.
Source: Journal of Materials Processing Technology, 113 (2001) 109-114.
Study of the injection upsetting of metals.: Authors: B. Parsons, P. R. Milnerf, B. N. Colei.
Summary: The punch pressure required to injection upset a cylindrical billet of an isotropic, non-work-hardening, rigid-plastic material is derived using an upper bound (velocity field) technique and by a 'slab' stress analysis. A method for applying the theory to the injection upsetting of work-hardening materials is evolved and the validity of this application is demonstrated by the results of experiments using pure aluminium, an aluminium alloy and copper.
Source: Journal Mechanical Engineering Science, Vol 15 No 6 1973.
Experimental-calculation method of strained state definition of a billet at twist extrusion. (ru): Authors: Yan Beygelzimer, A. Reshetov, S. Synkov, D. Orlov, R. Kulagin, N. Kulakov.
Summary: The essence of the method is a using of information on complying of a field of metal flow velocities with a class of kinematically-admissible fields. This information is used for a data of experiments handling. This class of velocities complies with condition on incompressibility and boundary conditions in velocities. We define field from the class mentioned, as a closest to experimental lines of metal flow. We consider this field as experimental and the strain rates and equivalent deformation are calculated based on this. The method proposed allows to avoid double differentiation of the experimental data by means of analytic form for velocities` fields differentiation.